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Simonsen A, Payandeh M, Engelberth Hansen S, Marchevsky A, Cheol Park G, Kumar Sahoo H, Semenova E, Hansen O, Yvind K. Bidirectional electrostatic MEMS-tunable VCSELs. Opt Lett 2024; 49:802-805. [PMID: 38359186 DOI: 10.1364/ol.510273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/08/2024] [Indexed: 02/17/2024]
Abstract
Microelectromechanical system (MEMS) vertical cavity surface-emitting lasers (VCSELs) are the fastest coherently tunable lasers (nm/ns) due to their unique Doppler-assisted tuning mechanism. However, in standard electrostatic actuation, the response is highly nonlinear and large (>100 V) dynamic voltages are needed for MHz sweep rates. We present a bidirectional MEMS VCSEL as a solution to these challenges where static voltages can be used to enable substantially linear and amplified wavelength tuning with respect to the fast tuning (MEMS) voltage. Using an InP/SOI MEMS bonded structure, we show a tuning range of 54.5 nm (gain limited) centered around 1586 nm at an actuation frequency of 2.73 MHz.
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2
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Deshpande RA, Navne J, Adelmark MV, Shkondin E, Crovetto A, Hansen O, Bachmann J, Taboryski R. Understanding the light induced hydrophilicity of metal-oxide thin films. Nat Commun 2024; 15:124. [PMID: 38167376 PMCID: PMC10761860 DOI: 10.1038/s41467-023-44603-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/21/2023] [Indexed: 01/05/2024] Open
Abstract
Photocatalytic effects resulting in water splitting, reduction of carbon dioxide to fuels using solar energy, decomposition of organic compounds, and light-induced hydrophilicity observed on surfaces of various metal oxides (MOx), all rely on the same basic physical mechanisms, and have attracted considerable interest over the past decades. TiO2 and ZnO, two natively n-type doped wide bandgap semiconductors exhibit the effects mentioned above. In this study we propose a model for the photo-induced hydrophilicity in MOx films, and we test the model for TiO2/Si and ZnO/Si heterojunctions. Experimentally, we employ a wet exposure technique whereby the MOx surface is exposed to UV light while a water droplet is sitting on the surface, which allows for a continuous recording of contact angles during illumination. The proposed model and the experimental techniques allow a determination of minority carrier diffusion lengths by contact angle measurements and suggest design rules for materials exhibiting photocatalytic hydrophilicity. We expect that this methodology can be extended to improve our physical understanding of other photocatalytic surface effects.
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Affiliation(s)
- Rucha Anil Deshpande
- Technical University of Denmark, DTU Nanolab, National Centre for Nano Fabrication and Characterization, Ørsteds Plads B347, DK-2800 Kgs, Lyngby, Denmark
| | - Jesper Navne
- Technical University of Denmark, DTU Nanolab, National Centre for Nano Fabrication and Characterization, Ørsteds Plads B347, DK-2800 Kgs, Lyngby, Denmark
| | - Mathias Vadmand Adelmark
- Technical University of Denmark, DTU Nanolab, National Centre for Nano Fabrication and Characterization, Ørsteds Plads B347, DK-2800 Kgs, Lyngby, Denmark
| | - Evgeniy Shkondin
- Technical University of Denmark, DTU Nanolab, National Centre for Nano Fabrication and Characterization, Ørsteds Plads B347, DK-2800 Kgs, Lyngby, Denmark
| | - Andrea Crovetto
- Technical University of Denmark, DTU Nanolab, National Centre for Nano Fabrication and Characterization, Ørsteds Plads B347, DK-2800 Kgs, Lyngby, Denmark
| | - Ole Hansen
- Technical University of Denmark, DTU Nanolab, National Centre for Nano Fabrication and Characterization, Ørsteds Plads B347, DK-2800 Kgs, Lyngby, Denmark
| | - Julien Bachmann
- Technical University of Denmark, DTU Nanolab, National Centre for Nano Fabrication and Characterization, Ørsteds Plads B347, DK-2800 Kgs, Lyngby, Denmark
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Chemistry of Thin Film Materials, IZNF, Cauerstr. 3, 91058, Erlangen, Germany
| | - Rafael Taboryski
- Technical University of Denmark, DTU Nanolab, National Centre for Nano Fabrication and Characterization, Ørsteds Plads B347, DK-2800 Kgs, Lyngby, Denmark.
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3
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Simonsen A, Park GC, Ansbæk TE, Hansen O, Yvind K. Design of a robust photonic crystal mirror for MEMS VCSELs. Opt Express 2023; 31:18240-18249. [PMID: 37381538 DOI: 10.1364/oe.491411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/05/2023] [Indexed: 06/30/2023]
Abstract
Wavelength tunable lasers with narrow dynamic linewidths are essential in many applications, such as optical coherence tomography and LiDAR. In this letter, we present a 2D mirror design that provides large optical bandwidth and high reflection while being stiffer than 1D mirrors. Specifically, we investigate the effect of rounded corners of rectangles as they are transferred from the CAD to the wafer by lithography and etching.
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4
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Duran B, Meziani ZE, Joosten S, Jones MK, Prasad S, Peng C, Armstrong W, Atac H, Chudakov E, Bhatt H, Bhetuwal D, Boer M, Camsonne A, Chen JP, Dalton MM, Deokar N, Diefenthaler M, Dunne J, El Fassi L, Fuchey E, Gao H, Gaskell D, Hansen O, Hauenstein F, Higinbotham D, Jia S, Karki A, Keppel C, King P, Ko HS, Li X, Li R, Mack D, Malace S, McCaughan M, McClellan RE, Michaels R, Meekins D, Paolone M, Pentchev L, Pooser E, Puckett A, Radloff R, Rehfuss M, Reimer PE, Riordan S, Sawatzky B, Smith A, Sparveris N, Szumila-Vance H, Wood S, Xie J, Ye Z, Yero C, Zhao Z. Determining the gluonic gravitational form factors of the proton. Nature 2023; 615:813-816. [PMID: 36991189 DOI: 10.1038/s41586-023-05730-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 01/13/2023] [Indexed: 03/31/2023]
Abstract
The proton is one of the main building blocks of all visible matter in the Universe1. Among its intrinsic properties are its electric charge, mass and spin2. These properties emerge from the complex dynamics of its fundamental constituents-quarks and gluons-described by the theory of quantum chromodynamics3-5. The electric charge and spin of protons, which are shared among the quarks, have been investigated previously using electron scattering2. An example is the highly precise measurement of the electric charge radius of the proton6. By contrast, little is known about the inner mass density of the proton, which is dominated by the energy carried by gluons. Gluons are hard to access using electron scattering because they do not carry an electromagnetic charge. Here we investigated the gravitational density of gluons using a small colour dipole, through the threshold photoproduction of the J/ψ particle. We determined the gluonic gravitational form factors of the proton7,8 from our measurement. We used a variety of models9-11 and determined, in all cases, a mass radius that is notably smaller than the electric charge radius. In some, but not all cases, depending on the model, the determined radius agrees well with first-principle predictions from lattice quantum chromodynamics12. This work paves the way for a deeper understanding of the salient role of gluons in providing gravitational mass to visible matter.
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Affiliation(s)
- B Duran
- Physics Division, Argonne National Laboratory, Lemont, IL, USA
- Department of Physics, Temple University, Philadelphia, PA, USA
| | - Z-E Meziani
- Physics Division, Argonne National Laboratory, Lemont, IL, USA.
- Department of Physics, Temple University, Philadelphia, PA, USA.
| | - S Joosten
- Physics Division, Argonne National Laboratory, Lemont, IL, USA
| | - M K Jones
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - S Prasad
- Physics Division, Argonne National Laboratory, Lemont, IL, USA
| | - C Peng
- Physics Division, Argonne National Laboratory, Lemont, IL, USA
| | - W Armstrong
- Physics Division, Argonne National Laboratory, Lemont, IL, USA
| | - H Atac
- Department of Physics, Temple University, Philadelphia, PA, USA
| | - E Chudakov
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - H Bhatt
- Department of Physics & Astronomy, Mississippi State University, Mississippi State, MS, USA
| | - D Bhetuwal
- Department of Physics & Astronomy, Mississippi State University, Mississippi State, MS, USA
| | - M Boer
- Department of Physics, Virginia Polytechnic Institute & State University, Blacksburg, VA, USA
| | - A Camsonne
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - J-P Chen
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - M M Dalton
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - N Deokar
- Department of Physics, Temple University, Philadelphia, PA, USA
| | - M Diefenthaler
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - J Dunne
- Department of Physics & Astronomy, Mississippi State University, Mississippi State, MS, USA
| | - L El Fassi
- Department of Physics & Astronomy, Mississippi State University, Mississippi State, MS, USA
| | - E Fuchey
- Department of Physics, University of Connecticut, Storrs, CT, USA
| | - H Gao
- Department of Physics, Duke University, Durham, NC, USA
| | - D Gaskell
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - O Hansen
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - F Hauenstein
- Department of Physics, Old Dominion University, Norfolk, VA, USA
| | - D Higinbotham
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - S Jia
- Department of Physics, Temple University, Philadelphia, PA, USA
| | - A Karki
- Department of Physics & Astronomy, Mississippi State University, Mississippi State, MS, USA
| | - C Keppel
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - P King
- Department of Physics and Astronomy, Ohio University, Athens, OH, USA
| | - H S Ko
- CNRS/IN2P3, IJCLab Orsay, Université Paris-Saclay, Gif-sur-Yvette, France
| | - X Li
- Department of Physics, Duke University, Durham, NC, USA
| | - R Li
- Department of Physics, Temple University, Philadelphia, PA, USA
| | - D Mack
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - S Malace
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - M McCaughan
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - R E McClellan
- Natural Sciences Department, Pensacola State College, Pensacola, FL, USA
| | - R Michaels
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - D Meekins
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - Michael Paolone
- Department of Physics, Temple University, Philadelphia, PA, USA
| | - L Pentchev
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - E Pooser
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - A Puckett
- Department of Physics, University of Connecticut, Storrs, CT, USA
| | - R Radloff
- Department of Physics and Astronomy, Ohio University, Athens, OH, USA
| | - M Rehfuss
- Department of Physics, Temple University, Philadelphia, PA, USA
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Lemont, IL, USA
| | - S Riordan
- Physics Division, Argonne National Laboratory, Lemont, IL, USA
| | - B Sawatzky
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - A Smith
- Department of Physics, Duke University, Durham, NC, USA
| | - N Sparveris
- Department of Physics, Temple University, Philadelphia, PA, USA
| | - H Szumila-Vance
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - S Wood
- Experimental Nuclear Physics Division, Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - J Xie
- Physics Division, Argonne National Laboratory, Lemont, IL, USA
| | - Z Ye
- Physics Division, Argonne National Laboratory, Lemont, IL, USA
| | - C Yero
- Department of Physics, Old Dominion University, Norfolk, VA, USA
| | - Z Zhao
- Department of Physics, Duke University, Durham, NC, USA
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5
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Li R, Sparveris N, Atac H, Jones MK, Paolone M, Akbar Z, Gayoso CA, Berdnikov V, Biswas D, Boer M, Camsonne A, Chen JP, Diefenthaler M, Duran B, Dutta D, Gaskell D, Hansen O, Hauenstein F, Heinrich N, Henry W, Horn T, Huber GM, Jia S, Joosten S, Karki A, Kay SJD, Kumar V, Li X, Li WB, Liyanage AH, Malace S, Markowitz P, McCaughan M, Meziani ZE, Mkrtchyan H, Morean C, Muhoza M, Narayan A, Pasquini B, Rehfuss M, Sawatzky B, Smith GR, Smith A, Trotta R, Yero C, Zheng X, Zhou J. Measured proton electromagnetic structure deviates from theoretical predictions. Nature 2022; 611:265-270. [PMID: 36261531 DOI: 10.1038/s41586-022-05248-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 08/17/2022] [Indexed: 11/09/2022]
Abstract
The visible world is founded on the proton, the only composite building block of matter that is stable in nature. Consequently, understanding the formation of matter relies on explaining the dynamics and the properties of the proton's bound state. A fundamental property of the proton involves the response of the system to an external electromagnetic field. It is characterized by the electromagnetic polarizabilities1 that describe how easily the charge and magnetization distributions inside the system are distorted by the electromagnetic field. Moreover, the generalized polarizabilities2 map out the resulting deformation of the densities in a proton subject to an electromagnetic field. They disclose essential information about the underlying system dynamics and provide a key for decoding the proton structure in terms of the theory of the strong interaction that binds its elementary quark and gluon constituents. Of particular interest is a puzzle in the electric generalized polarizability of the proton that remains unresolved for two decades2. Here we report measurements of the proton's electromagnetic generalized polarizabilities at low four-momentum transfer squared. We show evidence of an anomaly to the behaviour of the proton's electric generalized polarizability that contradicts the predictions of nuclear theory and derive its signature in the spatial distribution of the induced polarization in the proton. The reported measurements suggest the presence of a new, not-yet-understood dynamical mechanism in the proton and present notable challenges to the nuclear theory.
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Affiliation(s)
- R Li
- Temple University, Philadelphia, PA, USA
| | | | - H Atac
- Temple University, Philadelphia, PA, USA
| | - M K Jones
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - M Paolone
- New Mexico State University, Las Cruces, NM, USA
| | - Z Akbar
- University of Virginia, Charlottesville, VA, USA
| | | | - V Berdnikov
- Catholic University of America, Washington, DC, USA
| | - D Biswas
- Hampton University, Hampton, VA, USA.,Virginia Polytechnic Institute & State University, Blacksburg, VA, USA
| | - M Boer
- Temple University, Philadelphia, PA, USA.,Virginia Polytechnic Institute & State University, Blacksburg, VA, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - M Diefenthaler
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - B Duran
- Temple University, Philadelphia, PA, USA
| | - D Dutta
- Mississippi State University, Mississippi State, MS, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | | | - N Heinrich
- University of Regina, Regina, Saskatchewan, Canada
| | - W Henry
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - T Horn
- Catholic University of America, Washington, DC, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan, Canada
| | - S Jia
- Temple University, Philadelphia, PA, USA
| | - S Joosten
- Argonne National Laboratory, Lemont, IL, USA
| | - A Karki
- Mississippi State University, Mississippi State, MS, USA
| | - S J D Kay
- University of Regina, Regina, Saskatchewan, Canada
| | - V Kumar
- University of Regina, Regina, Saskatchewan, Canada
| | - X Li
- Duke University, Durham, NC, USA
| | - W B Li
- The College of William and Mary, Williamsburg, VA, USA
| | | | - S Malace
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - P Markowitz
- Florida International University, University Park, FL, USA
| | - M McCaughan
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - Z-E Meziani
- Argonne National Laboratory, Lemont, IL, USA
| | - H Mkrtchyan
- Artem Alikhanian National Laboratory, Yerevan, Armenia
| | - C Morean
- University of Tennessee, Knoxville, TN, USA
| | - M Muhoza
- Catholic University of America, Washington, DC, USA
| | - A Narayan
- Veer Kunwar Singh University, Arrah, India
| | - B Pasquini
- University of Pavia, Pavia, Italy.,Istituto Nazionale di Fisica Nucleare (INFN), Pavia, Italy
| | - M Rehfuss
- Temple University, Philadelphia, PA, USA
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, VA, USA
| | - A Smith
- Duke University, Durham, NC, USA
| | - R Trotta
- Catholic University of America, Washington, DC, USA
| | - C Yero
- Florida International University, University Park, FL, USA
| | - X Zheng
- University of Virginia, Charlottesville, VA, USA
| | - J Zhou
- Duke University, Durham, NC, USA
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6
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Balasubramanian GPS, Lebedkina E, Goktas NI, Wagner JB, Hansen O, LaPierre R, Semenova E, Mølhave K, Beleggia M, Fiordaliso EM. In situoff-axis electron holography of real-time dopant diffusion in GaAs nanowires. Nanotechnology 2022; 33:475705. [PMID: 35944428 DOI: 10.1088/1361-6528/ac880f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Off-axis electron holography was used to reveal remote doping in GaAs nanowires occurring duringin situannealing in a transmission electron microscope. Dynamic changes to the electrostatic potential caused by carbon dopant diffusion upon annealing were measured across GaAs nanowires with radial p-p+ core-shell junctions. Electrostatic potential profiles were extracted from holographic phase maps and built-in potentials (Vbi) and depletion layer widths (DLWs) were estimated as function of temperature over 300-873 K. Simulations in absence of remote doping predict a significant increase ofVbiand DLWs with temperature. In contrast, we measured experimentally a nearly constantVbiand a weak increase of DLWs. Moreover, we observed the appearance of a depression in the potential profile of the core upon annealing. We attribute these deviations from the predicted behavior to carbon diffusion from the shell to the core through the nanowire sidewalls, i.e. to remote doping, becoming significant at 673 K. The DLW in the p and p+ regions are in the 10-30 nm range.
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Affiliation(s)
| | - Elizaveta Lebedkina
- DTU Fotonik, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Nebile Isik Goktas
- Department of Engineering Physics, McMaster University, L8S 4L7 Hamilton, Ontario, Canada
| | | | - Ole Hansen
- DTU Nanolab, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Ray LaPierre
- Department of Engineering Physics, McMaster University, L8S 4L7 Hamilton, Ontario, Canada
| | - Elizaveta Semenova
- DTU Fotonik, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Kristian Mølhave
- DTU Nanolab, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Marco Beleggia
- DTU Nanolab, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
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7
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Benesova K, Hansen O, Sander O, Feuchtenberger M, Nigg A, Voigt A, Seipelt E, Schneider M, Lorenz HM, Krause A. [Further development of regional early care-Many roads lead to Rome : Developmental stages of four established rheumatological early care concepts in different regions of Germany]. Z Rheumatol 2022; 81:445-462. [PMID: 35670879 PMCID: PMC9171475 DOI: 10.1007/s00393-022-01220-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2022] [Indexed: 11/25/2022]
Abstract
In order to shorten the prognostically relevant waiting time until diagnosis and initiation of appropriate treatment in inflammatory rheumatic diseases, rheumatological centers in many regions across Germany have established and continuously developed specific early care concepts. Evaluated models from Altötting·Burghausen, Berlin Buch, Düsseldorf and Heidelberg and their developmental stages as a response to internal and external challenges are presented in this overview. The transparent publication of the developmental steps and the exchange of experiences aim at promoting new early care concepts in other regions and continuing the joint dialogue for improvement of the early detection and quality of care of inflammatory rheumatic diseases in Germany.
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Affiliation(s)
- K Benesova
- Innere Medizin V, Sektion Rheumatologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Deutschland.
| | - O Hansen
- Innere Medizin V, Sektion Rheumatologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Deutschland
| | - O Sander
- Poliklinik und Funktionsbereich für Rheumatologie & Hiller Forschungszentrum Rheumatologie, UKD Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Deutschland
| | - M Feuchtenberger
- MVZ MED|BAYERN OST Altötting·Burghausen, Burghausen, Deutschland
| | - A Nigg
- MVZ MED|BAYERN OST Altötting·Burghausen, Burghausen, Deutschland
| | - A Voigt
- Abteilung für Rheumatologie, Osteologie und Klinische Immunologie, Immanuel Krankenhaus Berlin, Berlin, Deutschland
| | - E Seipelt
- Abteilung für Rheumatologie, Osteologie und Klinische Immunologie, Immanuel Krankenhaus Berlin, Berlin, Deutschland
| | - M Schneider
- Poliklinik und Funktionsbereich für Rheumatologie & Hiller Forschungszentrum Rheumatologie, UKD Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Deutschland
| | - H-M Lorenz
- Innere Medizin V, Sektion Rheumatologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Deutschland
- ACURA Rheumazentrum Baden-Baden, Baden-Baden, Deutschland
| | - A Krause
- Abteilung für Rheumatologie, Osteologie und Klinische Immunologie, Immanuel Krankenhaus Berlin, Berlin, Deutschland
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8
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Georges F, Rashad MNH, Stefanko A, Dlamini M, Karki B, Ali SF, Lin PJ, Ko HS, Israel N, Adikaram D, Ahmed Z, Albataineh H, Aljawrneh B, Allada K, Allison S, Alsalmi S, Androic D, Aniol K, Annand J, Atac H, Averett T, Ayerbe Gayoso C, Bai X, Bane J, Barcus S, Bartlett K, Bellini V, Beminiwattha R, Bericic J, Biswas D, Brash E, Bulumulla D, Campbell J, Camsonne A, Carmignotto M, Castellano J, Chen C, Chen JP, Chetry T, Christy ME, Cisbani E, Clary B, Cohen E, Compton N, Cornejo JC, Covrig Dusa S, Crowe B, Danagoulian S, Danley T, De Persio F, Deconinck W, Defurne M, Desnault C, Di D, Duer M, Duran B, Ent R, Fanelli C, Franklin G, Fuchey E, Gal C, Gaskell D, Gautam T, Glamazdin O, Gnanvo K, Gray VM, Gu C, Hague T, Hamad G, Hamilton D, Hamilton K, Hansen O, Hauenstein F, Henry W, Higinbotham DW, Holmstrom T, Horn T, Huang Y, Huber GM, Hyde CE, Ibrahim H, Jen CM, Jin K, Jones M, Kabir A, Keppel C, Khachatryan V, King PM, Li S, Li WB, Liu J, Liu H, Liyanage A, Magee J, Malace S, Mammei J, Markowitz P, McClellan E, Mazouz M, Meddi F, Meekins D, Mesik K, Michaels R, Mkrtchyan A, Montgomery R, Muñoz Camacho C, Myers LS, Nadel-Turonski P, Nazeer SJ, Nelyubin V, Nguyen D, Nuruzzaman N, Nycz M, Obretch OF, Ou L, Palatchi C, Pandey B, Park S, Park K, Peng C, Pomatsalyuk R, Pooser E, Puckett AJR, Punjabi V, Quinn B, Rahman S, Reimer PE, Roche J, Sapkota I, Sarty A, Sawatzky B, Saylor NH, Schmookler B, Shabestari MH, Shahinyan A, Sirca S, Smith GR, Sooriyaarachchilage S, Sparveris N, Spies R, Su T, Subedi A, Sulkosky V, Sun A, Thorne L, Tian Y, Ton N, Tortorici F, Trotta R, Urciuoli GM, Voutier E, Waidyawansa B, Wang Y, Wojtsekhowski B, Wood S, Yan X, Ye L, Ye Z, Yero C, Zhang J, Zhao Y, Zhu P. Deeply Virtual Compton Scattering Cross Section at High Bjorken x_{B}. Phys Rev Lett 2022; 128:252002. [PMID: 35802440 DOI: 10.1103/physrevlett.128.252002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 03/28/2022] [Accepted: 04/18/2022] [Indexed: 06/15/2023]
Abstract
We report high-precision measurements of the deeply virtual Compton scattering (DVCS) cross section at high values of the Bjorken variable x_{B}. DVCS is sensitive to the generalized parton distributions of the nucleon, which provide a three-dimensional description of its internal constituents. Using the exact analytic expression of the DVCS cross section for all possible polarization states of the initial and final electron and nucleon, and final state photon, we present the first experimental extraction of all four helicity-conserving Compton form factors (CFFs) of the nucleon as a function of x_{B}, while systematically including helicity flip amplitudes. In particular, the high accuracy of the present data demonstrates sensitivity to some very poorly known CFFs.
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Affiliation(s)
- F Georges
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Stefanko
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - M Dlamini
- Ohio University, Athens, Ohio 45701, USA
| | - B Karki
- Ohio University, Athens, Ohio 45701, USA
| | - S F Ali
- Catholic University of America, Washington, DC 20064, USA
| | - P-J Lin
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H-S Ko
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
- Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826 Seoul, Korea
| | - N Israel
- Ohio University, Athens, Ohio 45701, USA
| | - D Adikaram
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z Ahmed
- University of Regina, Regina, Saskatchewan, S4S 0A2 Canada
| | - H Albataineh
- Texas A&M University-Kingsville, Kingsville, Texas 78363, USA
| | - B Aljawrneh
- North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, USA
| | - K Allada
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Allison
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Alsalmi
- Kent State University, Kent, Ohio 44240, USA
| | - D Androic
- University of Zagreb, Trg Republike Hrvatske 14, 10000 Zagreb, Croatia
| | - K Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - J Annand
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Averett
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - C Ayerbe Gayoso
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - X Bai
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Bane
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - S Barcus
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - K Bartlett
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - V Bellini
- Istituto Nazionale di Fisica Nucleare, Dipartimento di Fisica delle Università degli di Catania, I-95123 Catania, Italy
| | | | - J Bericic
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D Biswas
- Hampton University, Hampton, Virginia 23669, USA
| | - E Brash
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Campbell
- Dalhousie University, Nova Scotia, NS B3H 4R2, Canada
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Carmignotto
- Catholic University of America, Washington, DC 20064, USA
| | - J Castellano
- Florida International University, Miami, Florida 33199, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23669, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Chetry
- Ohio University, Athens, Ohio 45701, USA
| | - M E Christy
- Hampton University, Hampton, Virginia 23669, USA
| | - E Cisbani
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, Piazzale Aldo Moro, 2-00185 Roma, Italy
| | - B Clary
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - E Cohen
- Tel Aviv University, Tel Aviv-Yafo 6997801, Israel
| | - N Compton
- Ohio University, Athens, Ohio 45701, USA
| | - J C Cornejo
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Crowe
- North Carolina Central University, Durham, North Carolina 27707, USA
| | - S Danagoulian
- North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, USA
| | - T Danley
- Ohio University, Athens, Ohio 45701, USA
| | - F De Persio
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, Piazzale Aldo Moro, 2-00185 Roma, Italy
| | - W Deconinck
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - M Defurne
- CEA Saclay, 91191 Gif-sur-Yvette, France
| | - C Desnault
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D Di
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Duer
- Tel Aviv University, Tel Aviv-Yafo 6997801, Israel
| | - B Duran
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Fanelli
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G Franklin
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Gautam
- Hampton University, Hampton, Virginia 23669, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - K Gnanvo
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - V M Gray
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - C Gu
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - T Hague
- Kent State University, Kent, Ohio 44240, USA
| | - G Hamad
- Ohio University, Athens, Ohio 45701, USA
| | - D Hamilton
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - K Hamilton
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - W Henry
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Longwood University, Farmville, Virginia 23901, USA
| | - T Horn
- Catholic University of America, Washington, DC 20064, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Huang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan, S4S 0A2 Canada
| | - C E Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - H Ibrahim
- Cairo University, Cairo 121613, Egypt
| | - C-M Jen
- Virginia Polytechnic Institute & State University, Blacksburg, Virginia 234061, USA
| | - K Jin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Kabir
- Kent State University, Kent, Ohio 44240, USA
| | - C Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Khachatryan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Stony Brook, State University of New York, New York 11794, USA
- Cornell University, Ithaca, New York 14853, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - S Li
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - W B Li
- University of Regina, Regina, Saskatchewan, S4S 0A2 Canada
| | - J Liu
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - H Liu
- Columbia University, New York, New York 10027, USA
| | - A Liyanage
- Hampton University, Hampton, Virginia 23669, USA
| | - J Magee
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - S Malace
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Mammei
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | - E McClellan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Mazouz
- Faculté des Sciences de Monastir, Monastir 5019, Tunisia
| | - F Meddi
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, Piazzale Aldo Moro, 2-00185 Roma, Italy
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Mesik
- Rutgers University, New Brunswick, New Jersey 08854, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Mkrtchyan
- Catholic University of America, Washington, DC 20064, USA
| | - R Montgomery
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - C Muñoz Camacho
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - L S Myers
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S J Nazeer
- Hampton University, Hampton, Virginia 23669, USA
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - D Nguyen
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Nuruzzaman
- Hampton University, Hampton, Virginia 23669, USA
| | - M Nycz
- Kent State University, Kent, Ohio 44240, USA
| | - O F Obretch
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - L Ou
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C Palatchi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Pandey
- Hampton University, Hampton, Virginia 23669, USA
| | - S Park
- Stony Brook, State University of New York, New York 11794, USA
| | - K Park
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - C Peng
- Duke University, Durham, North Carolina 27708, USA
| | - R Pomatsalyuk
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - E Pooser
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A J R Puckett
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - B Quinn
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Rahman
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - I Sapkota
- Catholic University of America, Washington, DC 20064, USA
| | - A Sarty
- Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N H Saylor
- Rensselaer Polytechnic Institute, Troy, New York 12180, USA
| | - B Schmookler
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M H Shabestari
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - A Shahinyan
- AANL, 2 Alikhanian Brothers Street, 0036 Yerevan, Armenia
| | - S Sirca
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Spies
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - T Su
- Kent State University, Kent, Ohio 44240, USA
| | - A Subedi
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - V Sulkosky
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Sun
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - L Thorne
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Y Tian
- Shandong University, Jinan 250100, China
| | - N Ton
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - F Tortorici
- Istituto Nazionale di Fisica Nucleare, Dipartimento di Fisica delle Università degli di Catania, I-95123 Catania, Italy
| | - R Trotta
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - G M Urciuoli
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, Piazzale Aldo Moro, 2-00185 Roma, Italy
| | - E Voutier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - B Waidyawansa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Wang
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Yan
- Huangshan University, Tunxi, Daizhen Road 245041, China
| | - L Ye
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - Z Ye
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C Yero
- Florida International University, Miami, Florida 33199, USA
| | - J Zhang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Zhao
- Stony Brook, State University of New York, New York 11794, USA
| | - P Zhu
- University of Science and Technology of China, Hefei, Anhui 230026, China
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Benesova K, Hansen O, Kiltz U, Brandt-Juergens J, Kästner P, Riechers E, Peterlik D, Budden C, Boas A, Welle S, Tony HP. AB0752 HOW DOES TIME TO DIAGNOSIS AND GENDER AFFECT TREATMENT OUTCOMES IN PATIENTS WITH ANKYLOSING SPONDYLITIS OR PSORIATIC ARTHRITIS? – REAL WORLD DATA FROM THE GERMAN AQUILA STUDY WITH SECUKINUMAB. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundIn both, ankylosing spondylitis (AS) and psoriatic arthritis (PsA), women typically have a longer delay in diagnosis.1,2 There is scientific evidence that prognosis for AS and PsA improves when diagnosed early. The German non-interventional study AQUILA provides real-world data on the influence of time to diagnosis and gender on treatment outcomes under secukinumab, a fully human monoclonal antibody that selectively inhibits interleukin-17A.ObjectivesThe aims of this interim analysis are to describe selected baseline (BL) demographics of AS and PsA patients (pts) and to evaluate the impact of time to diagnosis and gender on secukinumab treatment outcomes, such as disease activity and global functioning and health.MethodsAQUILA is an ongoing, multi-center, non-interventional study including up to 3000 pts with AS or PsA. Pts were observed from BL up to week (w) 52 according to clinical routine. Real-world data were assessed prospectively and analyzed as observed. Validated questionnaires were used to collect data on disease activity (Bath Ankylosing Spondylitis Disease Activity Index, BASDAI), global functioning and health (Assessment of SpondyloArthritis-Health Index, ASAS-HI) in AS, and skin and joint-related disease activity (Psoriasis Area and Severity Index, PASI; tender/swollen joint counts, TJC/SJC) and impact of disease (Psoriatic Arthritis Impact of Disease - 12 items, PsAID-12 score) in PsA pts. This interim analysis focused on the subgroups of male and female AS and PsA pts stratified by time to diagnosis after disease onset (˂1 year [y] and ≥1y for early and late diagnosis, respectively).ResultsAt BL, 609 AS and 1145 PsA pts were included with information on time to diagnosis (Table 1); only 18.7% of AS and 25.8% of PsA pts were diagnosed within one year. Of interest, both female AS and PsA pts as well as male PsA pts with increased BMI tended to be diagnosed later (Table 1). Regarding BASDAI scores, male AS pts diagnosed late had increased disease activity at BL and throughout the study (Figure 1A); female AS pts diagnosed late showed reduced total treatment effect with increasing time to diagnosis (Figure 1B). Similarly, both male and female AS pts diagnosed late had slightly increased ASAS-HI at BL and throughout the study (Table 1). For PsA pts, there was no difference in skin- (PASI, Figure 1C/D) and joint-related (Figure 1E/F) disease activity with respect to time to diagnosis. Furthermore, there was no difference in PsAID scores (data not shown) between early- and late-diagnosed PsA pts.Table 1.Overview of selected BL characteristics in AS and PsA pts stratified by time to diagnosisAS (N=609)Time to diagnosis ˂1 year (n=114)Time to diagnosis ≥1 year (n=495)Male (n=63)Female (n=51)Male (n=301)Female (n=194)Age, years43.146.345.947.7BMI27.725.927.327.8BASDAI4.75.05.35.2ASAS-HI6.78.07.48.2PsA (N=1145)Time to diagnosis ˂1 year (n=295)Time to diagnosis ≥1 year (n=850)Male (n=126)Female (n=169)Male (n=363)Female (n=487)Age, years50.151.852.353.1BMI28.729.429.328.8PASI6.56.27.07.2PsAID4.65.24.85.3TJC/SJC5.9/3.37.3/3.27.0/3.77.3/3.8All variables given as meanFigure 1.Disease activity in early- and late-diagnosed AS and PsA ptsConclusionIn a real-world setting, secukinumab improved disease activity and global functioning in both AS and PsA pts. Both, male and female AS pts had a higher treatment response when diagnosed early. Interestingly, delay in diagnosis appeared to be BMI-dependent in female AS pts and PsA pts of both genders. However, in contrast to AS, treatment response of early- and late-diagnosed PsA pts did not differ in the further course.References[1]Rusman, T., van Bentum, R.E. & van der Horst-Bruinsma, I.E. Rheumatology59, iv38-iv46 (2020). 2. Passia, E., et al. OP0057. Annals of the Rheumatic Diseases79, 38-39 (2020).Disclosure of InterestsKarolina Benesova Speakers bureau: Abbvie, BMS, Gilead/Galapagos, Janssen, Lilly, Medac, MSD, Novartis, Roche, Viatris, Consultant of: Gilead/Galapagos, Novartis, Grant/research support from: Abbvie, Novartis, Oliver Hansen Grant/research support from: Novartis, Uta Kiltz Consultant of: AbbVie, Amgen, Biogen, Chugai, Eli Lilly, Gilead, GSK, Grünenthal, Hexal, Janssen, MSD, Novartis, Pfizer, Roche, UCB, Grant/research support from: AbbVie, Amgen, Biogen, Chugai, Eli Lilly, Gilead, GSK, Grünenthal, Hexal, Janssen, MSD, Novartis, Pfizer, Roche, UCB, Jan Brandt-Juergens Consultant of: Abbvie, Affibody, BMS, Gilead, Janssen, Lilly, Medac, MSD, Novartis, Pfizer, Roche, Sanofi-Aventis, UCB, Peter Kästner Consultant of: Chugai, Novartis, Elke Riechers Consultant of: AbbVie, Chugai, Novartis, UCB, Grant/research support from: AbbVie, Chugai, Novartis, UCB, Pfizer, Daniel Peterlik Employee of: Novartis, Christina Budden Employee of: Novartis, Annika Boas Employee of: Novartis, Stefanie Welle Employee of: Novartis, Hans-Peter Tony Consultant of: AbbVie, Astra-Zeneca, BMS, Chugai, Janssen, Lilly, MSD, Novartis, Pfizer, Roche, Sanofi
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Olloni A, Hansen O, Kristiansen C, Edvardsson L, Nielsen M, Jeppesen S, Schytte T. PO-1140 Survival after stereotactic radiosurgery for brain metastases – A single-institution experience. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03104-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Møller P, Dysager L, Bernchou U, Bertelsen A, Brink C, Mahmood F, Jensen H, Hansen O, Nyborg C, Pappot H, Dieperink K. OC-0136 Acute toxicity reported by patients with prostate cancer receiving online MR-guided radiotherapy. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02512-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Spindler N, Felter M, Hansen O, Nielsen T, Suppli M, Josipovic M, Poulsen L, Gaard-Petersen F, Sand H, Abramova T, Johansen M, Kornerup J, Alsaker M, Serup-Hansen E, Geertsen P, Vogelius I, Behrens C, Persson G. OC-0604 Early toxicity after SABR of oligometastatic bony metastases in the BONY M phase II trial. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02626-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Brink C, Bernchou U, Hazell I, Bertelsen A, Lorenzen E, Hansen C, Christiansen R, Sarup N, Agergaard S, Gottlieb K, Jensen H, Bahij R, Dysager L, Nyborg C, Hansen O, Schytte T. MO-0879 Automatic detection of delineation outliers at an MR linac. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02445-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Christiansen R, Dysager L, Hansen C, Schytte T, Bertelsen A, Jensen H, Mahmood F, Nyborg C, Hansen S, Agergaard S, Hansen O, Brink C, Bernchou U. PO-1689 Potential NTCP reductions for high-risk prostate cancer patients by MR-guided adaptive radiotherapy. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03653-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Assar A, Martinho F, Larsen J, Saini N, Shearer D, Moro MV, Stulen F, Grini S, Engberg S, Stamate E, Schou J, Vines L, Canulescu S, Platzer-Björkman C, Hansen O. Gettering in PolySi/SiO x Passivating Contacts Enables Si-Based Tandem Solar Cells with High Thermal and Contamination Resilience. ACS Appl Mater Interfaces 2022; 14:14342-14358. [PMID: 35297597 DOI: 10.1021/acsami.2c00319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Multijunction solar cells in a tandem configuration could further lower the costs of electricity if crystalline Si (c-Si) is used as the bottom cell. However, for direct monolithic integration on c-Si, only a restricted number of top and bottom cell architectures are compatible, due to either epitaxy or high-temperature constraints, where the interface between subcells is subject to a trade-off between transmittance, electrical interconnection, and bottom cell degradation. Using polySi/SiOx passivating contacts for Si, this degradation can be largely circumvented by tuning the polySi/SiOx stacks to promote gettering of contaminants admitted into the Si bottom cell during the top cell synthesis. Applying this concept to the low-cost top cell chalcogenides Cu2ZnSnS4 (CZTS), CuGaSe2 (CGSe), and AgInGaSe2 (AIGSe), fabricated under harsh S or Se atmospheres above 550 °C, we show that increasing the heavily doped polySi layer thickness from 40 to up to 400 nm prevents a reduction in Si carrier lifetime by 1 order of magnitude, with final lifetimes above 500 μs uniformly across areas up to 20 cm2. In all cases, the increased resilience was correlated with a 99.9% reduction in contaminant concentration in the c-Si bulk, provided by the thick polySi layer, which acts as a buried gettering layer in the tandem structure without compromising the Si passivation quality. The Si resilience decreased as AIGSe > CGSe > CZTS, in accordance with the measured Cu contamination profiles and higher annealing temperatures. An efficiency of up to 7% was achieved for a CZTS/Si tandem, where the Si bottom cell is no longer the limiting factor.
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Affiliation(s)
- Alireza Assar
- DTU Nanolab, National Centre for Nanofabrication and Characterization, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Filipe Martinho
- Department of Photonics Engineering, Technical University of Denmark, DK-4000 Roskilde, Denmark
| | - Jes Larsen
- Division of Solar Cell Technology, Department of Materials Science and Engineering, Uppsala University, 75236 Uppsala, Sweden
| | - Nishant Saini
- Division of Solar Cell Technology, Department of Materials Science and Engineering, Uppsala University, 75236 Uppsala, Sweden
| | - Denver Shearer
- DTU Nanolab, National Centre for Nanofabrication and Characterization, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Marcos V Moro
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - Fredrik Stulen
- Department of Physics, University of Oslo, 0371 Oslo, Norway
| | - Sigbjørn Grini
- Department of Physics, University of Oslo, 0371 Oslo, Norway
| | - Sara Engberg
- Department of Photonics Engineering, Technical University of Denmark, DK-4000 Roskilde, Denmark
| | - Eugen Stamate
- DTU Nanolab, National Centre for Nanofabrication and Characterization, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Jørgen Schou
- Department of Photonics Engineering, Technical University of Denmark, DK-4000 Roskilde, Denmark
| | - Lasse Vines
- Department of Physics, University of Oslo, 0371 Oslo, Norway
| | - Stela Canulescu
- Department of Photonics Engineering, Technical University of Denmark, DK-4000 Roskilde, Denmark
| | - Charlotte Platzer-Björkman
- Division of Solar Cell Technology, Department of Materials Science and Engineering, Uppsala University, 75236 Uppsala, Sweden
| | - Ole Hansen
- DTU Nanolab, National Centre for Nanofabrication and Characterization, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
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Christy ME, Gautam T, Ou L, Schmookler B, Wang Y, Adikaram D, Ahmed Z, Albataineh H, Ali SF, Aljawrneh B, Allada K, Allison SL, Alsalmi S, Androic D, Aniol K, Annand J, Arrington J, Atac H, Averett T, Ayerbe Gayoso C, Bai X, Bane J, Barcus S, Bartlett K, Bellini V, Beminiwattha R, Bericic J, Bhatt H, Bhetuwal D, Biswas D, Brash E, Bulumulla D, Camacho CM, Campbell J, Camsonne A, Carmignotto M, Castellanos J, Chen C, Chen JP, Chetry T, Cisbani E, Clary B, Cohen E, Compton N, Cornejo JC, Covrig Dusa S, Crowe B, Danagoulian S, Danley T, Deconinck W, Defurne M, Desnault C, Di D, Dlamini M, Duer M, Duran B, Ent R, Fanelli C, Fuchey E, Gal C, Gaskell D, Georges F, Gilad S, Glamazdin O, Gnanvo K, Gramolin AV, Gray VM, Gu C, Habarakada A, Hague T, Hamad G, Hamilton D, Hamilton K, Hansen O, Hauenstein F, Hernandez AV, Henry W, Higinbotham DW, Holmstrom T, Horn T, Huang Y, Huber GM, Hyde C, Ibrahim H, Israel N, Jen CM, Jin K, Jones M, Kabir A, Karki B, Keppel C, Khachatryan V, King PM, Li S, Li W, Liu H, Liu J, Liyanage AH, Mack D, Magee J, Malace S, Mammei J, Markowitz P, Mayilyan S, McClellan E, Meddi F, Meekins D, Mesick K, Michaels R, Mkrtchyan A, Moffit B, Montgomery R, Myers LS, Nadel-Turonski P, Nazeer SJ, Nelyubin V, Nguyen D, Nuruzzaman N, Nycz M, Obrecht RF, Ohanyan K, Palatchi C, Pandey B, Park K, Park S, Peng C, Persio FD, Pomatsalyuk R, Pooser E, Puckett AJR, Punjabi V, Quinn B, Rahman S, Rashad MNH, Reimer PE, Riordan S, Roche J, Sapkota I, Sarty A, Sawatzky B, Saylor NH, Shabestari MH, Shahinyan A, Širca S, Smith GR, Sooriyaarachchilage S, Sparveris N, Spies R, Stefanko A, Su T, Subedi A, Sulkosky V, Sun A, Tan Y, Thorne L, Ton N, Tortorici F, Trotta R, Uniyal R, Urciuoli GM, Voutier E, Waidyawansa B, Wojtsekhowski B, Wood S, Yan X, Ye L, Ye ZH, Yero C, Zhang J, Zhao YX, Zhu P. Form Factors and Two-Photon Exchange in High-Energy Elastic Electron-Proton Scattering. Phys Rev Lett 2022; 128:102002. [PMID: 35333083 DOI: 10.1103/physrevlett.128.102002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 11/06/2021] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
We present new precision measurements of the elastic electron-proton scattering cross section for momentum transfer (Q^{2}) up to 15.75 (GeV/c)^{2}. Combined with existing data, these provide an improved extraction of the proton magnetic form factor at high Q^{2} and double the range over which a longitudinal or transverse separation of the cross section can be performed. The difference between our results and polarization data agrees with that observed at lower Q^{2} and attributed to hard two-photon exchange (TPE) effects, extending to 8 (GeV/c)^{2} the range of Q^{2} for which a discrepancy is established at >95% confidence. We use the discrepancy to quantify the size of TPE contributions needed to explain the cross section at high Q^{2}.
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Affiliation(s)
- M E Christy
- Hampton University, Hampton, Virginia 23669, USA
| | - T Gautam
- Hampton University, Hampton, Virginia 23669, USA
| | - L Ou
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B Schmookler
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y Wang
- William and Mary, Williamsburg, Virginia 23185, USA
| | - D Adikaram
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z Ahmed
- University of Regina, Regina, Saskatchewan S4S 0A2 Canada
| | - H Albataineh
- Texas A & M University, Kingsville, Texas 77843, USA
| | - S F Ali
- Catholic University of America, Washington, District of Columbia 20064, USA
| | - B Aljawrneh
- North Carolina A&T State University, Greensboro, North Carolina 27411, USA
- Al Zaytoonah University of Jordan, Amman 11733, Jordan
| | - K Allada
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S L Allison
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Alsalmi
- Kent State University, Kent, Ohio 44240, USA
| | - D Androic
- University of Zagreb, Trg Republike Hrvatske 14, 10000, Zagreb, Croatia
| | - K Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - J Annand
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - J Arrington
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Averett
- William and Mary, Williamsburg, Virginia 23185, USA
| | | | - X Bai
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - J Bane
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - S Barcus
- William and Mary, Williamsburg, Virginia 23185, USA
| | - K Bartlett
- William and Mary, Williamsburg, Virginia 23185, USA
| | - V Bellini
- Istituto Nazionale di Fisica Nucleare, Department of Physics and Astronomy, I-95123 Catania, Italy
| | | | - J Bericic
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Bhetuwal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Biswas
- Hampton University, Hampton, Virginia 23669, USA
| | - E Brash
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - C M Camacho
- Institut de Physique Nucleaire, 15 Rue Georges Clemenceau, 91400 Orsay, France
| | - J Campbell
- Dalhousie University, Nova Scotia NS B3H 4R2, Canada
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Carmignotto
- Catholic University of America, Washington, DC 20064, USA
| | - J Castellanos
- Florida International University, Miami, Florida 33199, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23669, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Chetry
- Ohio University, Athens, Ohio 45701, USA
| | - E Cisbani
- Istituto Nazionale di Fisica Nucleare - Sezione di Roma, P.le Aldo Moro, 2 - 00185 Roma, Italy
| | - B Clary
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - E Cohen
- Tel Aviv University, Tel Aviv-Yafo 69978, Israel
| | - N Compton
- Ohio University, Athens, Ohio 45701, USA
| | - J C Cornejo
- William and Mary, Williamsburg, Virginia 23185, USA
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Crowe
- North Carolina Central University, Durham, North Carolina 27707, USA
| | - S Danagoulian
- North Carolina A&T State University, Greensboro, North Carolina 27411, USA
| | - T Danley
- Ohio University, Athens, Ohio 45701, USA
| | - W Deconinck
- William and Mary, Williamsburg, Virginia 23185, USA
| | - M Defurne
- CEA Saclay, 91191 Gif-sur-Yvette, France
| | - C Desnault
- Institut de Physique Nucleaire, 15 Rue Georges Clemenceau, 91400 Orsay, France
| | - D Di
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - M Dlamini
- Ohio University, Athens, Ohio 45701, USA
| | - M Duer
- Tel Aviv University, Tel Aviv-Yafo 69978, Israel
| | - B Duran
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Fanelli
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Georges
- Ecole Centrale Paris, 3 Rue Joliot Curie, 91190 Gif-sur-Yvette, France
| | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - K Gnanvo
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - A V Gramolin
- Boston University, Boston, Massachusetts 02215, USA
| | - V M Gray
- William and Mary, Williamsburg, Virginia 23185, USA
| | - C Gu
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - A Habarakada
- Hampton University, Hampton, Virginia 23669, USA
| | - T Hague
- Kent State University, Kent, Ohio 44240, USA
| | - G Hamad
- Ohio University, Athens, Ohio 45701, USA
| | - D Hamilton
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - K Hamilton
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A V Hernandez
- Catholic University of America, Washington, DC 20064, USA
| | - W Henry
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Randolph Macon College, Ashland, Virginia 23005, USA
| | - T Horn
- Catholic University of America, Washington, DC 20064, USA
| | - Y Huang
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan S4S 0A2 Canada
| | - C Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - H Ibrahim
- Cairo University, Cairo, 12613, Egypt
| | - N Israel
- Ohio University, Athens, Ohio 45701, USA
| | - C-M Jen
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 234061, USA
| | - K Jin
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - M Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Kabir
- Kent State University, Kent, Ohio 44240, USA
| | - B Karki
- Ohio University, Athens, Ohio 45701, USA
| | - C Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Khachatryan
- Stony Brook, State University of New York, New York 11794, USA
- Cornell University, Ithaca, New York 14853, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - S Li
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - W Li
- University of Regina, Regina, Saskatchewan S4S 0A2 Canada
| | - H Liu
- Columbia University, New York, New York 10027, USA
| | - J Liu
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - A H Liyanage
- Hampton University, Hampton, Virginia 23669, USA
| | - D Mack
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Magee
- William and Mary, Williamsburg, Virginia 23185, USA
| | - S Malace
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Mammei
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | - S Mayilyan
- AANL, 2 Alikhanian Brothers Street, 0036 Yerevan, Armenia
| | - E McClellan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Meddi
- Istituto Nazionale di Fisica Nucleare - Sezione di Roma, P.le Aldo Moro, 2 - 00185 Roma, Italy
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Mesick
- Rutgers University, New Brunswick, New Jersey 08854, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Mkrtchyan
- Catholic University of America, Washington, DC 20064, USA
| | - B Moffit
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Montgomery
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - L S Myers
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S J Nazeer
- Hampton University, Hampton, Virginia 23669, USA
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - D Nguyen
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - N Nuruzzaman
- Hampton University, Hampton, Virginia 23669, USA
| | - M Nycz
- Kent State University, Kent, Ohio 44240, USA
| | - R F Obrecht
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - K Ohanyan
- AANL, 2 Alikhanian Brothers Street, 0036 Yerevan, Armenia
| | - C Palatchi
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - B Pandey
- Hampton University, Hampton, Virginia 23669, USA
| | - K Park
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Park
- Stony Brook, State University of New York, New York 11794, USA
| | - C Peng
- Duke University, Durham, North Carolina 27708, USA
| | - F D Persio
- Istituto Nazionale di Fisica Nucleare - Sezione di Roma, P.le Aldo Moro, 2 - 00185 Roma, Italy
| | - R Pomatsalyuk
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - E Pooser
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A J R Puckett
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - B Quinn
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Rahman
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - P E Reimer
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - S Riordan
- Stony Brook, State University of New York, New York 11794, USA
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - I Sapkota
- Catholic University of America, Washington, DC 20064, USA
| | - A Sarty
- Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N H Saylor
- Rensselaer Polytechnic Institute, Troy, New York 12180, USA
| | - M H Shabestari
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - A Shahinyan
- AANL, 2 Alikhanian Brothers Street, 0036 Yerevan, Armenia
| | - S Širca
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Spies
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - A Stefanko
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - T Su
- Kent State University, Kent, Ohio 44240, USA
| | - A Subedi
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - V Sulkosky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Sun
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Y Tan
- Shandong University, Shandong, Jinan 250100, China
| | - L Thorne
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - N Ton
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - F Tortorici
- Istituto Nazionale di Fisica Nucleare, Department of Physics and Astronomy, I-95123 Catania, Italy
| | - R Trotta
- Duquesne University, Pittsburgh, Pennsylvania 15282, USA
| | - R Uniyal
- Catholic University of America, Washington, DC 20064, USA
| | - G M Urciuoli
- Istituto Nazionale di Fisica Nucleare - Sezione di Roma, P.le Aldo Moro, 2 - 00185 Roma, Italy
| | - E Voutier
- Institut de Physique Nucleaire, 15 Rue Georges Clemenceau, 91400 Orsay, France
| | - B Waidyawansa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Yan
- Huangshan University, 44 Daizhen Road, Tunxi District, Huangshan, Anhui Province, China
| | - L Ye
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - Z H Ye
- University of Virginia, Charlottesville, Virginia 232904, USA
- Tsinghua University, 30 Shuangqing Rd, Haidian District, Beijing 100190, China
| | - C Yero
- Florida International University, Miami, Florida 33199, USA
| | - J Zhang
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - Y X Zhao
- Stony Brook, State University of New York, New York 11794, USA
| | - P Zhu
- University of Science and Technology of China, Hefei, Anhui 230026, China
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Itabashi K, Suzuki K, Pandey B, Okuyama K, Gogami T, Nagao S, Nakamura S, Tang L, Abrams D, Akiyama T, Androic D, Aniol K, Ayerbe Gayoso C, Bane J, Barcus S, Barrow J, Bellini V, Bhatt H, Bhetuwal D, Biswas D, Camsonne A, Castellanos J, Chen JP, Chen J, Covrig S, Chrisman D, Cruz-Torres R, Das R, Fuchey E, Gnanvo K, Garibaldi F, Gautam T, Gomez J, Gueye P, Hague T, Hansen O, Henry W, Hauenstein F, Higinbotham D, Hyde C, Kaneta M, Keppel C, Kutz T, Lashley-Colthirst N, Li S, Liu H, Mammei J, Markowitz P, McClellan RE, Meddi F, Meekins D, Michaels R, Mihovilovic M, Moyer A, Nguyen D, Nycz M, Owen V, Palatchi C, Park S, Petkovic T, Premathilake S, Reimer P, Reinhold J, Riordan S, Rodriguez V, Samanta C, Santiesteban S, Sawatzky B, Širca S, Slifer K, Su T, Tian Y, Toyama Y, Uehara K, Urciuoli G, Votaw D, Williamson J, Wojtsekhowski B, Wood S, Yale B, Ye Z, Zhang J, Zheng X. Study of Λ n FSI with Λ quasi-free productions on the 3H( e, e′K+) X reaction at JLab. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202227102006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract. An nnΛ is a neutral baryon system with no charge. The study of the pure Λ-neutron system such as nnΛ gives us information on the Λn interaction. The nnΛ search experiment (E12-17-003) was performed at JLab Hall A in 2018. In this article, the Λn FSI was investigated by a shape analysis of the 3H(e, e′K+)X missing mass spectrum, and a preliminary result for the Λn FSI study is given.
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Gogami T, Suzuki KN, Pandey B, Itabashi K, Nagao S, Okuyama K, Nakamura SN, Tang L, Abrams D, Akiyama T, Androic D, Aniol K, Ayerbe Gayoso C, Bane J, Barcus S, Barrow J, Bellini V, Bhatt H, Bhetuwal D, Biswas D, Camsonne A, Castellanos J, Chen JP, Chen J, Covrig S, Chrisman D, Cruz-Torres R, Das R, Fuchey E, Gnanvo K, Garibaldi F, Gautam T, Gomez J, Gueye P, Hague TJ, Hansen O, Henry W, Hauenstein F, Higinbotham DW, Hyde CE, Kaneta M, Keppel C, Kutz T, Lashley-Colthirst N, Li S, Liu H, Mammei J, Markowitz P, McClellan RE, Meddi F, Meekins D, Michaels R, Mihovilovic M, Moyer A, Nguyen D, Nycz M, Owen V, Palatchi C, Park S, Petkovic T, Premathilake S, Reimer PE, Reinhold J, Riordan S, Rodriguez V, Samanta C, Santiesteban SN, Sawatzky B, Širca S, Slifer K, Su T, Tian Y, Toyama Y, Uehara K, Urciuoli GM, Votaw D, Williamson J, Wojtsekhowski B, Wood SA, Yale B, Ye Z, Zhang J, Zheng X. Cross-section measurement of virtual photoproduction of iso-triplet three-body hypernucleus, Λ nn. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202227102002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Missing-mass spectroscopy with the 3H(e, e′K+) reaction was carried out at Jefferson Lab’s (JLab) Hall A in Oct–Nov, 2018. The differential cross section for the 3H(γ∗, K+)Λnn was deduced at ω = Ee − Ee′ = 2.102 GeV and at the forward K+-scattering angle (0° ≤ θγ∗K ≤ 5°) in the laboratory frame. Given typical predicted energies and decay widths, which are (BΛ, Γ) = (−0.25, 0.8) and (−0.55, 4.7) MeV, the cross sections were found to be 11.2 ± 4.8(stat.)+4.1−2.1(sys.) and 18.1 ± 6.8(stat.)+4.2−2.9(sys.) nb/sr, respectively. The obtained result would impose a constraint for interaction models particularly between Λ and neutron by comparing to theoretical calculations.
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Okuyama K, Itabashi K, Nagao S, Nakamura SN, Suzuki KN, Gogami T, Pandey B, Tang L, Abrams D, Akiyama T, Androic D, Aniol K, Ayerbe Gayoso C, Bane J, Barcus S, Barrow J, Bellini V, Bhatt H, Bhetuwal D, Biswas D, Camsonne A, Castellanos J, Chen JP, Chen J, Covrig S, Chrisman D, Cruz-Torres R, Das R, Fuchey E, Gnanvo K, Garibaldi F, Gautam T, Gomez J, Gueye P, Hague TJ, Hansen O, Henry W, Hauenstein F, Higinbotham DW, Hyde CE, Kaneta M, Keppel C, Kutz T, Lashley-Colthirst N, Li S, Liu H, Mammei J, Markowitz P, McClellan RE, Meddi F, Meekins D, Michaels R, Mihovilovic M, Moyer A, Nguyen D, Nycz M, Owen V, Palatchi C, Park S, Petkovic T, Premathilake S, Reimer PE, Reinhold J, Riordan S, Rodriguez V, Samanta C, Santiesteban SN, Sawatzky B, Širca S, Slifer K, Su T, Tian Y, Toyama Y, Uehara K, Urciuoli GM, Votaw D, Williamson J, Wojtsekhowski B, Wood SA, Yale B, Ye Z, Zhang J, Zheng X. Study of the Λ/Σ 0 electroproduction in the low- Q2 region at JLab. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202227102003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
We performed an experiment using tritium and hydrogen cryogenic gas targets at Thomas Jefferson National Accelerator Facility (JLab) in 2018 (E12-17-003)[1, 2]. In this article, we discuss the Λ/Σ0 hyperon electroproduction from hydrogen target. Elementary Λ/Σ0 hyperon production processes are important not only for an absolute mass scale calibration in our experiment, but also for the study of the electroproduction mechanisms themselves. In this article, we reported the results of the differential cross section for the p(e, e’K+)Λ/Σ0 reaction at Q2 ∼ 0.5 (GeV/c)2.
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Dlamini M, Karki B, Ali SF, Lin PJ, Georges F, Ko HS, Israel N, Rashad MNH, Stefanko A, Adikaram D, Ahmed Z, Albataineh H, Aljawrneh B, Allada K, Allison S, Alsalmi S, Androic D, Aniol K, Annand J, Atac H, Averett T, Ayerbe Gayoso C, Bai X, Bane J, Barcus S, Bartlett K, Bellini V, Beminiwattha R, Bericic J, Biswas D, Brash E, Bulumulla D, Campbell J, Camsonne A, Carmignotto M, Castellano J, Chen C, Chen JP, Chetry T, Christy ME, Cisbani E, Clary B, Cohen E, Compton N, Cornejo JC, Covrig Dusa S, Crowe B, Danagoulian S, Danley T, De Persio F, Deconinck W, Defurne M, Desnault C, Di D, Duer M, Duran B, Ent R, Fanelli C, Franklin G, Fuchey E, Gal C, Gaskell D, Gautam T, Glamazdin O, Gnanvo K, Gray VM, Gu C, Hague T, Hamad G, Hamilton D, Hamilton K, Hansen O, Hauenstein F, Henry W, Higinbotham DW, Holmstrom T, Horn T, Huang Y, Huber GM, Hyde C, Ibrahim H, Jen CM, Jin K, Jones M, Kabir A, Keppel C, Khachatryan V, King PM, Li S, Li W, Liu J, Liu H, Liyanage A, Magee J, Malace S, Mammei J, Markowitz P, McClellan E, Meddi F, Meekins D, Mesik K, Michaels R, Mkrtchyan A, Montgomery R, Muñoz Camacho C, Myers LS, Nadel-Turonski P, Nazeer SJ, Nelyubin V, Nguyen D, Nuruzzaman N, Nycz M, Obretch OF, Ou L, Palatchi C, Pandey B, Park S, Park K, Peng C, Pomatsalyuk R, Pooser E, Puckett AJR, Punjabi V, Quinn B, Rahman S, Reimer PE, Roche J, Sapkota I, Sarty A, Sawatzky B, Saylor NH, Schmookler B, Shabestari MH, Shahinyan A, Sirca S, Smith GR, Sooriyaarachchilage S, Sparveris N, Spies R, Su T, Subedi A, Sulkosky V, Sun A, Thorne L, Tian Y, Ton N, Tortorici F, Trotta R, Urciuoli GM, Voutier E, Waidyawansa B, Wang Y, Wojtsekhowski B, Wood S, Yan X, Ye L, Ye Z, Yero C, Zhang J, Zhao Y, Zhu P. Deep Exclusive Electroproduction of π^{0} at High Q^{2} in the Quark Valence Regime. Phys Rev Lett 2021; 127:152301. [PMID: 34678020 DOI: 10.1103/physrevlett.127.152301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 06/07/2021] [Accepted: 08/17/2021] [Indexed: 06/13/2023]
Abstract
We report measurements of the exclusive neutral pion electroproduction cross section off protons at large values of x_{B} (0.36, 0.48, and 0.60) and Q^{2} (3.1 to 8.4 GeV^{2}) obtained from Jefferson Lab Hall A experiment E12-06-014. The corresponding structure functions dσ_{T}/dt+εdσ_{L}/dt, dσ_{TT}/dt, dσ_{LT}/dt, and dσ_{LT^{'}}/dt are extracted as a function of the proton momentum transfer t-t_{min}. The results suggest the amplitude for transversely polarized virtual photons continues to dominate the cross section throughout this kinematic range. The data are well described by calculations based on transversity generalized parton distributions coupled to a helicity flip distribution amplitude of the pion, thus providing a unique way to probe the structure of the nucleon.
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Affiliation(s)
- M Dlamini
- Ohio University, Athens, Ohio 45701, USA
| | - B Karki
- Ohio University, Athens, Ohio 45701, USA
| | - S F Ali
- Catholic University of America, Washington, DC 20064, USA
| | - P-J Lin
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - F Georges
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H-S Ko
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
- Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826 Seoul, Korea
| | - N Israel
- Ohio University, Athens, Ohio 45701, USA
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Stefanko
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - D Adikaram
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z Ahmed
- University of Regina, Regina, Saskatchewan S4S 0A2 Canada
| | - H Albataineh
- Texas A&M University-Kingsville, Kingsville, Texas 78363, USA
| | - B Aljawrneh
- North Carolina Ag. and Tech. State University, Greensboro, North Carolina 27411, USA
| | - K Allada
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Allison
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Alsalmi
- Kent State University, Kent, Ohio 44240, USA
| | - D Androic
- University of Zagreb, Trg Republike Hrvatske 14, 10000 Zagreb, Croatia
| | - K Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - J Annand
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Averett
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - C Ayerbe Gayoso
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - X Bai
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Bane
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - S Barcus
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - K Bartlett
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - V Bellini
- Istituto Nazionale di Fisica Nucleare, Dipt. Di Fisica delle Uni. di Catania, I-95123 Catania, Italy
| | | | - J Bericic
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D Biswas
- Hampton University, Hampton, Virginia 23669, USA
| | - E Brash
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Campbell
- Dalhousie University, Nova Scotia B3H 4R2, Canada
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Carmignotto
- Catholic University of America, Washington, DC 20064, USA
| | - J Castellano
- Florida International University, Miami, Florida 33199, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23669, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Chetry
- Ohio University, Athens, Ohio 45701, USA
| | - M E Christy
- Hampton University, Hampton, Virginia 23669, USA
| | - E Cisbani
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, P.le Aldo Moro, 2-00185 Roma, Italy
| | - B Clary
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - E Cohen
- Tel Aviv University, Tel Aviv 699780 1, Israel
| | - N Compton
- Ohio University, Athens, Ohio 45701, USA
| | - J C Cornejo
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Crowe
- North Carolina Central University, Durham, North Carolina 27707, USA
| | - S Danagoulian
- North Carolina Ag. and Tech. State University, Greensboro, North Carolina 27411, USA
| | - T Danley
- Ohio University, Athens, Ohio 45701, USA
| | - F De Persio
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, P.le Aldo Moro, 2-00185 Roma, Italy
| | - W Deconinck
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - M Defurne
- CEA Saclay, 91191 Gif-sur-Yvette, France
| | - C Desnault
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D Di
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Duer
- Tel Aviv University, Tel Aviv 699780 1, Israel
| | - B Duran
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Fanelli
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G Franklin
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Gautam
- Hampton University, Hampton, Virginia 23669, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - K Gnanvo
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - V M Gray
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - C Gu
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - T Hague
- Kent State University, Kent, Ohio 44240, USA
| | - G Hamad
- Ohio University, Athens, Ohio 45701, USA
| | - D Hamilton
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - K Hamilton
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - W Henry
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Randolph Macon College, Ashlan, Virginia 23005, USA
| | - T Horn
- Catholic University of America, Washington, DC 20064, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Huang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan S4S 0A2 Canada
| | - C Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - H Ibrahim
- Cairo University, Cairo 121613, Egypt
| | - C-M Jen
- Virginia Polytechnic Institute & State University, Blacksburg, Virginia 234061, USA
| | - K Jin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Kabir
- Kent State University, Kent, Ohio 44240, USA
| | - C Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Khachatryan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Stony Brook, State University of New York, New York 11794, USA
- Cornell University, Ithaca, New York 14853, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - S Li
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - W Li
- University of Regina, Regina, Saskatchewan S4S 0A2 Canada
| | - J Liu
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - H Liu
- Columbia University, New York, New York 10027, USA
| | - A Liyanage
- Hampton University, Hampton, Virginia 23669, USA
| | - J Magee
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - S Malace
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Mammei
- University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | - E McClellan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Meddi
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, P.le Aldo Moro, 2-00185 Roma, Italy
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Mesik
- Rutgers University, New Brunswick, New Jersey 08854, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Mkrtchyan
- Catholic University of America, Washington, DC 20064, USA
| | - R Montgomery
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - C Muñoz Camacho
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - L S Myers
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S J Nazeer
- Hampton University, Hampton, Virginia 23669, USA
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - D Nguyen
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Nuruzzaman
- Hampton University, Hampton, Virginia 23669, USA
| | - M Nycz
- Kent State University, Kent, Ohio 44240, USA
| | - O F Obretch
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - L Ou
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C Palatchi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Pandey
- Hampton University, Hampton, Virginia 23669, USA
| | - S Park
- Stony Brook, State University of New York, New York 11794, USA
| | - K Park
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - C Peng
- Duke University, Durham, North Carolina 27708, USA
| | - R Pomatsalyuk
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - E Pooser
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A J R Puckett
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - B Quinn
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Rahman
- University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - I Sapkota
- Catholic University of America, Washington, DC 20064, USA
| | - A Sarty
- Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N H Saylor
- Rensselaer Polytechnic Institute, Troy, New York 12180, USA
| | - B Schmookler
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M H Shabestari
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - A Shahinyan
- AANL, 2 Alikhanian Brothers Street, 0036 Yerevan, Armenia
| | - S Sirca
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Spies
- University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - T Su
- Kent State University, Kent, Ohio 44240, USA
| | - A Subedi
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - V Sulkosky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Sun
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - L Thorne
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Y Tian
- Shandong University, Jinan, Shandong, 250100, China
| | - N Ton
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - F Tortorici
- Istituto Nazionale di Fisica Nucleare, Dipt. Di Fisica delle Uni. di Catania, I-95123 Catania, Italy
| | - R Trotta
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - G M Urciuoli
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, P.le Aldo Moro, 2-00185 Roma, Italy
| | - E Voutier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - B Waidyawansa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Wang
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Yan
- Huangshan University, Huangshan, Anhui, 245041, China
| | - L Ye
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - Z Ye
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C Yero
- Florida International University, Miami, Florida 33199, USA
| | - J Zhang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Zhao
- Stony Brook, State University of New York, New York 11794, USA
| | - P Zhu
- University of Science and Technology of China, Hefei, Anhui 230026, China
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Guralnik B, Hansen O, Henrichsen HH, Beltrán-Pitarch B, Østerberg FW, Shiv L, Marangoni TA, Stilling-Andersen AR, Cagliani A, Hansen MF, Nielsen PF, Oprins H, Vermeersch B, Adelmann C, Dutta S, Borup KA, Mihiretie BM, Petersen DH. 3ω correction method for eliminating resistance measurement error due to Joule heating. Rev Sci Instrum 2021; 92:094711. [PMID: 34598479 DOI: 10.1063/5.0063998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/06/2021] [Indexed: 06/13/2023]
Abstract
Electrical four-terminal sensing at (sub-)micrometer scales enables the characterization of key electromagnetic properties within the semiconductor industry, including materials' resistivity, Hall mobility/carrier density, and magnetoresistance. However, as devices' critical dimensions continue to shrink, significant over/underestimation of properties due to a by-product Joule heating of the probed volume becomes increasingly common. Here, we demonstrate how self-heating effects can be quantified and compensated for via 3ω signals to yield zero-current transfer resistance. Under further assumptions, these signals can be used to characterize selected thermal properties of the probed volume, such as the temperature coefficient of resistance and/or the Seebeck coefficient.
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Affiliation(s)
- Benny Guralnik
- CAPRES - A KLA Company, Diplomvej 373, 2800 Kgs. Lyngby, Denmark
| | - Ole Hansen
- Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | | | | | | | - Lior Shiv
- CAPRES - A KLA Company, Diplomvej 373, 2800 Kgs. Lyngby, Denmark
| | | | | | - Alberto Cagliani
- CAPRES - A KLA Company, Diplomvej 373, 2800 Kgs. Lyngby, Denmark
| | - Mikkel F Hansen
- CAPRES - A KLA Company, Diplomvej 373, 2800 Kgs. Lyngby, Denmark
| | - Peter F Nielsen
- CAPRES - A KLA Company, Diplomvej 373, 2800 Kgs. Lyngby, Denmark
| | | | | | | | | | - Kasper A Borup
- Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
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Christiansen R, Dysager L, Hansen O, Brink C, Bernchou U. PO-1559 PTV margin required for radiotherapy of prostate cancer on an MR linac. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08010-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Vuong D, Brink C, Bogowicz M, Schytte T, Hansen O, Long Krogh S, Guckenberger M, Tanadini-Lang S. PO-1804 Local radiomics and clinical variables to predict radiation-induced pneumonitis in NSCLC patients. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08255-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Olloni A, Olloni A, Diederichsen A, Hansen O, Brink C, Schytte T. PO-1201 Importance of coronary calcium score in patients with locally advanced non-small cell lung cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07652-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Krempl K, Hochfilzer D, Scott SB, Kibsgaard J, Vesborg PCK, Hansen O, Chorkendorff I. Dynamic Interfacial Reaction Rates from Electrochemistry-Mass Spectrometry. Anal Chem 2021; 93:7022-7028. [PMID: 33905662 DOI: 10.1021/acs.analchem.1c00110] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Electrochemistry-mass spectrometry is a versatile and reliable tool to study the interfacial reaction rates of Faradaic processes with high temporal resolutions. However, the measured mass spectrometric signals typically do not directly correspond to the partial current density toward the analyte due to mass transport effects. Here, we introduce a mathematical framework, grounded on a mass transport model, to obtain a quantitative and truly dynamic partial current density from a measured mass spectrometer signal by means of deconvolution. Furthermore, it is shown that the time resolution of electrochemistry-mass spectrometry is limited by entropy-driven processes during mass transport to the mass spectrometer. The methodology is validated by comparing the measured impulse responses of hydrogen and oxygen evolution to the model predictions and subsequently applied to uncover dynamic phenomena during hydrogen and oxygen evolution in an acidic electrolyte.
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Affiliation(s)
- Kevin Krempl
- Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Degenhart Hochfilzer
- Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Soren B Scott
- Department of Materials, Imperial College London, SW7 2AZ London, U.K
| | - Jakob Kibsgaard
- Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Peter C K Vesborg
- Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Ole Hansen
- DTU Nanolab, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Ib Chorkendorff
- Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
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Guralnik B, Hansen O, Henrichsen HH, Caridad JM, Wei W, Hansen MF, Nielsen PF, Petersen DH. Effective electrical resistivity in a square array of oriented square inclusions. Nanotechnology 2021; 32:185706. [PMID: 33445167 DOI: 10.1088/1361-6528/abdbec] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The continuing miniaturization of optoelectronic devices, alongside the rise of electromagnetic metamaterials, poses an ongoing challenge to nanofabrication. With the increasing impracticality of quality control at a single-feature (-device) resolution, there is an increasing demand for array-based metrologies, where compliance to specifications can be monitored via signals arising from a multitude of features (devices). To this end, a square grid with quadratic sub-features is amongst the more common designs in nanotechnology (e.g. nanofishnets, nanoholes, nanopyramids, μLED arrays etc). The electrical resistivity of such a quadratic grid may be essential to its functionality; it can also be used to characterize the critical dimensions of the periodic features. While the problem of the effective electrical resistivity ρ eff of a thin sheet with resistivity ρ 1, hosting a doubly-periodic array of oriented square inclusions with resistivity ρ 2, has been treated before (Obnosov 1999 SIAM J. Appl. Math. 59 1267-87), a closed-form solution has been found for only one case, where the inclusion occupies c = 1/4 of the unit cell. Here we combine first-principle approximations, numerical modeling, and mathematical analysis to generalize ρ eff for an arbitrary inclusion size (0 < c < 1). We find that in the range 0.01 ≤ c ≤ 0.99, ρ eff may be approximated (to within <0.3% error with respect to finite element simulations) by: [Formula: see text] [Formula: see text] whereby at the limiting cases of c → 0 and c → 1, α approaches asymptotic values of α = 2.039 and α = 1/c - 1, respectively. The applicability of the approximation to considerably more complex structures, such as recursively-nested inclusions and/or nonplanar topologies, is demonstrated and discussed. While certainly not limited to, the theory is examined from within the scope of micro four-point probe (M4PP) metrology, which currently lacks data reduction schemes for periodic materials whose cell is smaller than the typical μm-scale M4PP footprint.
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Affiliation(s)
- Benny Guralnik
- CAPRES-a KLA company, Diplomvej 373B, DK-2800 Kgs. Lyngby, Denmark
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej 310, DK-2800 Kgs. Lyngby, Denmark
| | - Ole Hansen
- National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Ørsteds Plads 347, DK-2800 Kgs. Lyngby, Denmark
| | | | - José M Caridad
- CAPRES-a KLA company, Diplomvej 373B, DK-2800 Kgs. Lyngby, Denmark
| | - Wilson Wei
- CAPRES-a KLA company, Diplomvej 373B, DK-2800 Kgs. Lyngby, Denmark
| | - Mikkel F Hansen
- CAPRES-a KLA company, Diplomvej 373B, DK-2800 Kgs. Lyngby, Denmark
| | - Peter F Nielsen
- CAPRES-a KLA company, Diplomvej 373B, DK-2800 Kgs. Lyngby, Denmark
| | - Dirch H Petersen
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej 310, DK-2800 Kgs. Lyngby, Denmark
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Alam SB, Andersen CR, Panciera F, Nilausen AAS, Hansen O, Ross FM, Mølhave K. In situ TEM modification of individual silicon nanowires and their charge transport mechanisms. Nanotechnology 2020; 31:494002. [PMID: 32746444 DOI: 10.1088/1361-6528/ababc8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Correlating the structure and composition of nanowires grown by the vapour-liquid-solid (VLS) mechanism with their electrical properties is essential for designing nanowire devices. In situ transmission electron microscopy (TEM) that can image while simultaneously measuring the current-voltage (I-V) characteristics of individual isolated nanowires is a unique tool for linking changes in structure with electronic transport. Here we grow and electrically connect silicon nanowires inside a TEM to perform in situ electrical measurements on individual nanowires both at high temperature and upon surface oxidation, as well as under ambient conditions. As-grown, the oxide-free nanowires have nonlinear I-V characteristics. We analyse the I-V measurements in terms of both bulk and injection limited transport models, finding Joule heating effects, bulk-limiting effects for thin nanowires and an injection-limiting effect for thick wires when high voltages are applied. When the nanowire surface is modified by in situ oxidation, drastic changes occur in the electronic properties. We investigate the relation between the observed geometry, changes in the surface structure and changes in electronic transport, obtaining information for individual nanowires that is inaccessible to other measuring techniques.
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Affiliation(s)
- Sardar B Alam
- National Centre for Nano Fabrication and Characterization, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Christopher R Andersen
- National Centre for Nano Fabrication and Characterization, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Federico Panciera
- University of Paris-Saclay, CNRS, Centre for Nanoscience and Nanotechnology, 91120 Palaiseau, France
- Department of Engineering, University of Cambridge, Cambridge, United Kingdom
- IBM T. J. Watson Research Center, Yorktown Heights, NY, United States of America
| | - Aage A S Nilausen
- National Centre for Nano Fabrication and Characterization, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Ole Hansen
- National Centre for Nano Fabrication and Characterization, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Frances M Ross
- IBM T. J. Watson Research Center, Yorktown Heights, NY, United States of America
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Kristian Mølhave
- National Centre for Nano Fabrication and Characterization, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
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Engberg S, Martinho F, Gansukh M, Protti A, Küngas R, Stamate E, Hansen O, Canulescu S, Schou J. Spin-coated [Formula: see text] solar cells: A study on the transformation from ink to film. Sci Rep 2020; 10:20749. [PMID: 33247169 PMCID: PMC7699652 DOI: 10.1038/s41598-020-77592-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 11/10/2020] [Indexed: 11/09/2022] Open
Abstract
In this paper, we study the DMSO/thiourea/chloride salt system for synthesis of pure-sulfide [Formula: see text] (CZTS) thin-film solar cells under ambient conditions. We map out the ink constituents and determine the effect of mixing time and filtering. The thermal behavior of the ink is analyzed, and we find that more than 90% of the solvent has evaporated at [Formula: see text]. However, chloride and sulfoxide species are released continually until [Formula: see text], suggesting the advantage of a higher pre-annealing temperature, which is also commonly observed in the spin-coating routines in literature. Another advantage of a higher pre-annealing temperature is that the worm-like pattern in the spin-coated film can be avoided. We hypothesize that this pattern forms as a result of hydrodynamics within the film as it dries, and it causes micro-inhomogeneities in film morphology. Devices were completed in order to finally evaluate the effect of varying thermal exposure during pre-annealing. Contrary to the previous observations, a lower pre-annealing temperature of [Formula: see text] results in the best device efficiency of 4.65%, which to the best of our knowledge is the highest efficiency obtained for a pure-sulfide kesterite made with DMSO. Lower thermal exposure during pre-annealing results in larger grains and a thicker [Formula: see text] layer at the CZTS/Mo interface. Devices completed at higher pre-annealing temperatures display the existence of either a Cu-S secondary phase or an incomplete sulfurization with smaller grains and a fine-grain layer at the back interface.
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Affiliation(s)
- Sara Engberg
- DTU Fotonik, Technical University of Denmark, 4000 Roskilde, Denmark
| | - Filipe Martinho
- DTU Fotonik, Technical University of Denmark, 4000 Roskilde, Denmark
| | | | - Alexander Protti
- DTU Fotonik, Technical University of Denmark, 4000 Roskilde, Denmark
| | | | - Eugen Stamate
- DTU Nanolab, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Ole Hansen
- DTU Nanolab, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Stela Canulescu
- DTU Fotonik, Technical University of Denmark, 4000 Roskilde, Denmark
| | - Jørgen Schou
- DTU Fotonik, Technical University of Denmark, 4000 Roskilde, Denmark
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Nielsen T, Brink C, Jeppesen S, Schytte T, Hansen O, Nielsen M. PD-0307: Tumor motion at planning 4D-CT and treatment 4D-CBCT for a large cohort of lung SBRT targets. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00331-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Schytte T, Møller P, Bernchou U, Agergaard S, Brink C, Dysager L, Gottlieb K, Hansen O, Lorenzen E, Mahmood F, Nyborg C, von Veldhuizen E, Bertelsen A. Stereotactic Ablation of Metastases in the Adrenal Glands Using MR Guided External Radiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Brink C, Bernchou U, Bertelsen A, Hansen O, Schytte T, Holloway L, Van Herk M, Johnson-Hart C, Price G, Aznar M, McWilliam A, Faivre-Finn C, Hansen C. PH-0650: External validation of survival of lung cancer patients due to setup uncertainties towards the heart. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00672-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gansukh M, Li Z, Rodriguez ME, Engberg S, Martinho FMA, Mariño SL, Stamate E, Schou J, Hansen O, Canulescu S. Energy band alignment at the heterointerface between CdS and Ag-alloyed CZTS. Sci Rep 2020; 10:18388. [PMID: 33110088 PMCID: PMC7591932 DOI: 10.1038/s41598-020-73828-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 09/15/2020] [Indexed: 11/19/2022] Open
Abstract
Energy band alignment at the heterointerface between CdS and kesterite Cu2ZnSnS4 (CZTS) and its alloys plays a crucial role in determining the efficiency of the solar cells. Whereas Ag alloying of CZTS has been shown to reduce anti-site defects in the bulk and thus rise the efficiency, the electronic properties at the interface with the CdS buffer layer have not been extensively investigated. In this work, we present a detailed study on the band alignment between n-CdS and p-CZTS upon Ag alloying by depth-profiling ultraviolet photoelectron spectroscopy (UPS) and X-ray photoelectron spectroscopy (XPS). Our findings indicate that core-level peaks and the valence band edge of CdS exhibit a significant shift to a lower energy (larger than 0.4 eV) upon the etching of the CdS layer, which can be assigned due to band bending and chemical shift induced by a change in the chemical composition across the interface. Using a simplified model based on charge depletion layer conservation, a significantly larger total charge region depletion width was determined in Ag-alloyed CZTS as compared to its undoped counterpart. Our findings reveal a cliff-like band alignment at both CdS/CZTS and CdS/Ag-CZTS heterointerfaces. However, the conduction-band offset decreases by more than 0.1 eV upon Ag alloying of CZTS. The approach demonstrated here enables nanometer-scale depth profiling of the electronic structure of the p–n junction and can be universally applied to study entirely new platforms of oxide/chalcogenide heterostructures for next-generation optoelectronic devices.
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Affiliation(s)
- Mungunshagai Gansukh
- Department of Photonics Engineering, Technical University of Denmark, 4000, Roskilde, Denmark
| | - Zheshen Li
- ISA, Department of Physics and Astronomy, Aarhus University, 8000, Aarhus C, Denmark
| | | | - Sara Engberg
- Department of Photonics Engineering, Technical University of Denmark, 4000, Roskilde, Denmark
| | | | - Simon López Mariño
- DTU Nanolab, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Eugen Stamate
- Department of Energy Conversion and Storage, Technical University of Denmark, 4000, Roskilde, Denmark.,DTU Nanolab, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Jørgen Schou
- Department of Photonics Engineering, Technical University of Denmark, 4000, Roskilde, Denmark
| | - Ole Hansen
- DTU Nanolab, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Stela Canulescu
- Department of Photonics Engineering, Technical University of Denmark, 4000, Roskilde, Denmark.
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Yesibolati MN, Laganá S, Kadkhodazadeh S, Mikkelsen EK, Sun H, Kasama T, Hansen O, Zaluzec NJ, Mølhave K. Electron inelastic mean free path in water. Nanoscale 2020; 12:20649-20657. [PMID: 32614016 DOI: 10.1039/d0nr04352d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Liquid phase transmission electron microscopy (LPTEM) is rapidly developing as a powerful tool for probing processes in liquid environments with close to atomic resolution. Knowledge of the water thickness is needed for reliable interpretation and modelling of analytical studies in LPTEM, and is particularly essential when using thin liquid layers, required for achieving the highest spatial resolutions. The log-ratio method in electron energy-loss spectroscopy (EELS) is often applied in TEM to quantify the sample thickness, which is measured relative to the inelastic mean free path (λIMFP). However, λIMFP itself is dependent on sample material, the electron energy, and the convergence and divergence angles of the microscope electronoptics. Here, we present a detailed quantitative analysis of the λIMFP of water as functions of the EELS collection angle (β) at 120 keV and 300 keV in a novel nanochannel liquid cell. We observe good agreement with earlier studies conducted on ice, but find that the most widely used theoretical models significantly underestimate λIMFP of water. We determine an adjusted average energy-loss term Em, water, and characteristic scattering angle θE, water that improve the accuracy. The results provide a comprehensive knowledge of the λIMFP of water (or ice) for reliable interpretation and quantification of observations in LPTEM and cryo-TEM studies.
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Affiliation(s)
- Murat Nulati Yesibolati
- DTU Nanolab, National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Building 307, 2800 Kgs. Lyngby, Denmark.
| | - Simone Laganá
- DTU Nanolab, National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Building 307, 2800 Kgs. Lyngby, Denmark.
| | - Shima Kadkhodazadeh
- DTU Nanolab, National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Building 307, 2800 Kgs. Lyngby, Denmark.
| | - Esben Kirk Mikkelsen
- DTU Nanolab, National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Building 307, 2800 Kgs. Lyngby, Denmark.
| | - Hongyu Sun
- DTU Nanolab, National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Building 307, 2800 Kgs. Lyngby, Denmark.
| | - Takeshi Kasama
- DTU Nanolab, National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Building 307, 2800 Kgs. Lyngby, Denmark.
| | - Ole Hansen
- DTU Nanolab, National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Building 307, 2800 Kgs. Lyngby, Denmark.
| | - Nestor J Zaluzec
- Argonne National Laboratory, Photon Sciences Division, 9700 S. Cass Avenue, Argonne, IL 60439, USA
| | - Kristian Mølhave
- DTU Nanolab, National Centre for Nano Fabrication and Characterization, Technical University of Denmark, Building 307, 2800 Kgs. Lyngby, Denmark.
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Martinho F, Lopez-Marino S, Espíndola-Rodríguez M, Hajijafarassar A, Stulen F, Grini S, Döbeli M, Gansukh M, Engberg S, Stamate E, Vines L, Schou J, Hansen O, Canulescu S. Persistent Double-Layer Formation in Kesterite Solar Cells: A Critical Review. ACS Appl Mater Interfaces 2020; 12:39405-39424. [PMID: 32805807 DOI: 10.1021/acsami.0c10068] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In kesterite Cu2ZnSn(S,Se)4 (CZTSSe) solar cell research, an asymmetric crystallization profile is often obtained after annealing, resulting in a bilayered - or double-layered - CZTSSe absorber. So far, only segregated pieces of research exist to characterize the appearance of this double layer, its formation dynamics, and its effect on the performances of devices. In this work, we review the existing research on double-layered kesterites and evaluate the different mechanisms proposed. Using a cosputtering-based approach, we show that the two layers can differ significantly in morphology, composition, and optoelectronic properties and complement the results with a large statistical data set of over 850 individual CZTS solar cells. By reducing the absorber thickness from above 1000 to 300 nm, we show that the double-layer segregation is alleviated. In turn, we see a progressive improvement in the device performance for lower thickness, which alone would be inconsistent with the well-known case of ultrathin CIGS solar cells. We therefore attribute the improvements to the reduced double-layer occurrence and find that the double layer limits the efficiency of our devices to below 7%. By comparing the results with CZTS grown on monocrystalline Si substrates, without a native Na supply, we show that the alkali metal supply does not determine the double-layer formation but merely reduces the threshold for its occurrence. Instead, we propose that the main formation mechanism is the early migration of Cu to the surface during annealing and formation of Cu2-xS phases in a self-regulating process akin to the Kirkendall effect. Finally, we comment on the generality of the mechanism proposed by comparing our results to other synthesis routes, including our own in-house results from solution processing and pulsed laser deposition of sulfide- and oxide-based targets. We find that although the double-layer occurrence largely depends on the kesterite synthesis route, the common factors determining the double-layer occurrence appear to be the presence of metallic Cu and/or a chalcogen deficiency in the precursor matrix. We suggest that understanding the limitations imposed by the double-layer dynamics could prove useful to pave the way for breaking the 13% efficiency barrier for this technology.
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Affiliation(s)
- Filipe Martinho
- Department of Photonics Engineering, Technical University of Denmark, Roskilde DK-4000, Denmark
| | - Simon Lopez-Marino
- DTU Nanolab, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Moises Espíndola-Rodríguez
- Department of Photonics Engineering, Technical University of Denmark, Roskilde DK-4000, Denmark
- DTU Energy, Technical University of Denmark, Roskilde DK-4000, Denmark
| | | | - Fredrik Stulen
- Department of Physics, University of Oslo, Oslo 0371, Norway
| | - Sigbjørn Grini
- Department of Physics, University of Oslo, Oslo 0371, Norway
| | - Max Döbeli
- Ion Beam Physics, ETH Zurich, Zurich CH-8093, Switzerland
| | - Mungunshagai Gansukh
- Department of Photonics Engineering, Technical University of Denmark, Roskilde DK-4000, Denmark
| | - Sara Engberg
- Department of Photonics Engineering, Technical University of Denmark, Roskilde DK-4000, Denmark
| | - Eugen Stamate
- DTU Nanolab, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Lasse Vines
- Department of Physics, University of Oslo, Oslo 0371, Norway
| | - Jørgen Schou
- Department of Photonics Engineering, Technical University of Denmark, Roskilde DK-4000, Denmark
| | - Ole Hansen
- DTU Nanolab, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Stela Canulescu
- Department of Photonics Engineering, Technical University of Denmark, Roskilde DK-4000, Denmark
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Benesova K, Lion V, Hansen O, Lorenz HM. AB1147 SCREENED – HIGH REMISSION RATES UNDERLINE THE BENEFIT OF SCREENING CONSULTATION MODELS FOR EARLY RECOGNITION AND TREATMENT OF RHEUMATIC AND MUSCULOSKELETAL DISEASES. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Early recognition and treatment of rheumatic and musculoskeletal diseases (RMDs) is of critical importance for the individual outcome. However, nationwide health care structures in Germany do not facilitate early access to initial rheumatologic evaluation. Furthermore, waiting times of several months due to substantial capacity constrains in regional rheumatology care services compromise the prognostically relevant “window of opportunity” for subsequent sustained remission. To promote early detection of RMDs, the Division of Rheumatology at the University hospital Heidelberg, Germany has launched a unique screening consultation model that offers early access to rheumatologic evaluation on regional level.Objectives:The registry-based study SCREENED (“Screen for early diagnosis”) has been initiated to monitor the outcome of patients that were diagnosed with an RMD at the screening clinic and to assess the costs and benefits of this consultation model for the regional quality of care.Methods:The screening consultation model has been launched in two phases: in the first phase (02/2016 - 01/2018), a screening clinic open to all patients without previous rheumatologic evaluation with appointments according to the registration order has been established through rearrangement of available capacities. In contrast to regular appointments, the screening clinic took place in shorter consultation time frames and without additional diagnostic procedures. In the second phase (02/2018 - 01/2020), in order to manage and prioritize access to rheumatologic care at our division more efficiently, prior to appointment allocation (not only) to the screening clinic all new patient registrations became subject to a preselection procedure based on the evaluation of an anamnesis questionnaire, medical reports and laboratory findings by an experienced rheumatologist. Furthermore, SCREENED project has been launched for scientific evaluation of both phases of the consultation model.Results:The screening consultation model achieved a significant reduction in waiting times to few weeks compared to six months for a regular appointment. In the first phase, the screening clinic had a high sensitivity of 94.3% and an improvable specificity of 31.1%. In the retrospective cohort, high remission rates have been observed over all RMD entities (120/206 = 58.3% patients based on physicians’ assessment in the follow-up after screening clinic) and in rheumatoid arthritis (RA) in particular (38/61 = 62.3% and 33/55 = 60% patients with DAS28 score < 2,6 after 12 and 24 months respectively). Remission was usually reached within a year after the first appointment (9.5 ± 6.7 months), however, a trend to higher remission rates in patients with shorter illness duration was obvious. In RA patients, csDMARDs have been initiated in a third of patients immediately at diagnosis in the screening clinic and in another third within six months after the first appointment. After 12 months, > 80% have received csDMARDs, while only 14.2% needed b/tsDMARDs in the follow-up over 24 months.Conclusion:High sensitivity and significant reduction in waiting times for initial rheumatologic evaluation in the screening clinic pave the way for early recognition and treatment of RMDs. Subsequently, high remission rates in the follow-up were reached. In RA, a high proportion of patients only required csDMARDs to achieve sustained remission. A correspondingly small proportion of patients necessitating b/tsDMARD in the follow-up points towards a significant health economic benefit of the early rheumatologic intervention in the screening consultation model.Disclosure of Interests:Karolina Benesova Grant/research support from: Study grants for SCREENED study by Abbvie, Novartis and Rheumaliga Baden-Württemberg, Consultant of: One-time participation in Novartis advisory board., Vivienne Lion Grant/research support from: Grant/research support from: Study grants for SCREENED study by Abbvie, Novartis and Rheumaliga Baden-Württemberg, Oliver Hansen Grant/research support from: Grant/research support from: Study grants for SCREENED study by Abbvie, Novartis and Rheumaliga Baden-Württemberg, Hanns-Martin Lorenz Grant/research support from: Consultancy and/or speaker fees and/or travel reimbursements: Abbvie, MSD, BMS, Pfizer, Celgene, Medac, GSK, Roche, Chugai, Novartis, UCB, Janssen-Cilag, Astra-Zeneca, Lilly. Scientific support and/or educational seminars and/or clinical studies: Abbvie, MSD, BMS, Pfizer, Celgene, Medac, GSK, Roche, Chugai, Novartis, UCB, Janssen-Cilag, Astra-Zeneca, Lilly, Baxter, SOBI, Biogen, Actelion, Bayer Vital, Shire, Octapharm, Sanofi, Hexal, Mundipharm, Thermo Fisher., Consultant of: see above
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Cruz-Torres R, Nguyen D, Hauenstein F, Schmidt A, Li S, Abrams D, Albataineh H, Alsalmi S, Androic D, Aniol K, Armstrong W, Arrington J, Atac H, Averett T, Ayerbe Gayoso C, Bai X, Bane J, Barcus S, Beck A, Bellini V, Benmokhtar F, Bhatt H, Bhetuwal D, Biswas D, Blyth D, Boeglin W, Bulumulla D, Camsonne A, Castellanos J, Chen JP, Cohen EO, Covrig S, Craycraft K, Dongwi B, Duer M, Duran B, Dutta D, Fuchey E, Gal C, Gautam TN, Gilad S, Gnanvo K, Gogami T, Golak J, Gomez J, Gu C, Habarakada A, Hague T, Hansen O, Hattawy M, Hen O, Higinbotham DW, Hughes E, Hyde C, Ibrahim H, Jian S, Joosten S, Kamada H, Karki A, Karki B, Katramatou AT, Keppel C, Khachatryan M, Khachatryan V, Khanal A, King D, King P, Korover I, Kutz T, Lashley-Colthirst N, Laskaris G, Li W, Liu H, Liyanage N, Markowitz P, McClellan RE, Meekins D, Mey-Tal Beck S, Meziani ZE, Michaels R, Mihovilovič M, Nelyubin V, Nuruzzaman N, Nycz M, Obrecht R, Olson M, Ou L, Owen V, Pandey B, Pandey V, Papadopoulou A, Park S, Patsyuk M, Paul S, Petratos GG, Piasetzky E, Pomatsalyuk R, Premathilake S, Puckett AJR, Punjabi V, Ransome R, Rashad MNH, Reimer PE, Riordan S, Roche J, Sargsian M, Santiesteban N, Sawatzky B, Segarra EP, Schmookler B, Shahinyan A, Širca S, Skibiński R, Sparveris N, Su T, Suleiman R, Szumila-Vance H, Tadepalli AS, Tang L, Tireman W, Topolnicki K, Tortorici F, Urciuoli G, Weinstein LB, Witała H, Wojtsekhowski B, Wood S, Ye ZH, Ye ZY, Zhang J. Probing Few-Body Nuclear Dynamics via ^{3}H and ^{3}He (e,e^{'}p)pn Cross-Section Measurements. Phys Rev Lett 2020; 124:212501. [PMID: 32530643 DOI: 10.1103/physrevlett.124.212501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/12/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
We report the first measurement of the (e,e^{'}p) three-body breakup reaction cross sections in helium-3 (^{3}He) and tritium (^{3}H) at large momentum transfer [⟨Q^{2}⟩≈1.9 (GeV/c)^{2}] and x_{B}>1 kinematics, where the cross section should be sensitive to quasielastic (QE) scattering from single nucleons. The data cover missing momenta 40≤p_{miss}≤500 MeV/c that, in the QE limit with no rescattering, equals the initial momentum of the probed nucleon. The measured cross sections are compared with state-of-the-art ab initio calculations. Overall good agreement, within ±20%, is observed between data and calculations for the full p_{miss} range for ^{3}H and for 100≤p_{miss}≤350 MeV/c for ^{3}He. Including the effects of rescattering of the outgoing nucleon improves agreement with the data at p_{miss}>250 MeV/c and suggests contributions from charge-exchange (SCX) rescattering. The isoscalar sum of ^{3}He plus ^{3}H, which is largely insensitive to SCX, is described by calculations to within the accuracy of the data over the entire p_{miss} range. This validates current models of the ground state of the three-nucleon system up to very high initial nucleon momenta of 500 MeV/c.
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Affiliation(s)
- R Cruz-Torres
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - D Nguyen
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- University of Education, Hue University, Hue City, Vietnam
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Schmidt
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Li
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - D Abrams
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - H Albataineh
- Texas A & M University, Kingsville, Texas 78363, USA
| | - S Alsalmi
- King Saud University, Riyadh 11451, Kingdom of Saudi Arabia
| | - D Androic
- University of Zagreb, 10000 Zagreb, Croatia
| | - K Aniol
- California State University, Los Angeles, California 90032, USA
| | - W Armstrong
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Arrington
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Averett
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - C Ayerbe Gayoso
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - X Bai
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Bane
- University of Tennessee, Knoxville, Tennessee 37966, USA
| | - S Barcus
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - A Beck
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - V Bellini
- INFN Sezione di Catania, 95123 Catania, Italy
| | - F Benmokhtar
- Duquesne University, Pittsburgh, Pennsylvania 15282, USA
| | - H Bhatt
- Mississippi State University, Mississippi 39762, USA
| | - D Bhetuwal
- Mississippi State University, Mississippi 39762, USA
| | - D Biswas
- Hampton University, Hampton, Virginia 23669, USA
| | - D Blyth
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - W Boeglin
- Florida International University, Miami, Florida 33199, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Camsonne
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - J Castellanos
- Florida International University, Miami, Florida 33199, USA
| | - J-P Chen
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - E O Cohen
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
| | - S Covrig
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - K Craycraft
- University of Tennessee, Knoxville, Tennessee 37966, USA
| | - B Dongwi
- Hampton University, Hampton, Virginia 23669, USA
| | - M Duer
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
| | - B Duran
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D Dutta
- Mississippi State University, Mississippi 39762, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - T N Gautam
- Hampton University, Hampton, Virginia 23669, USA
| | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - K Gnanvo
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - T Gogami
- Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - J Golak
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - J Gomez
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - C Gu
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Habarakada
- Hampton University, Hampton, Virginia 23669, USA
| | - T Hague
- Kent State University, Kent, Ohio 44240, USA
| | - O Hansen
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - M Hattawy
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - O Hen
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | | | - E Hughes
- Columbia University, New York, New York 10027, USA
| | - C Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - H Ibrahim
- Cairo University, 12613 Cairo, Egypt
| | - S Jian
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Joosten
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - H Kamada
- Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
| | - A Karki
- Mississippi State University, Mississippi 39762, USA
| | - B Karki
- Ohio University, Athens, Ohio 45701, USA
| | | | - C Keppel
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - M Khachatryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V Khachatryan
- Stony Brook, State University of New York, New York 11794, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - D King
- Syracuse University, Syracuse, New York 13244, USA
| | - P King
- Ohio University, Athens, Ohio 45701, USA
| | - I Korover
- Nuclear Research Center-Negev, Beer-Sheva, Israel
| | - T Kutz
- Stony Brook, State University of New York, New York 11794, USA
| | | | - G Laskaris
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - W Li
- University of Regina, Regina, SK S4S 0A2, Canada
| | - H Liu
- Columbia University, New York, New York 10027, USA
| | - N Liyanage
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | | | - D Meekins
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - S Mey-Tal Beck
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Z-E Meziani
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
- Columbia University, New York, New York 10027, USA
| | - R Michaels
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - M Mihovilovič
- University of Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, Jožef Stefan Institute, Ljubljana, Slovenia
- Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, DE-55128 Mainz, Germany
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Nuruzzaman
- Hampton University, Hampton, Virginia 23669, USA
| | - M Nycz
- Kent State University, Kent, Ohio 44240, USA
| | - R Obrecht
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Olson
- Saint Norbert College, De Pere, Wisconsin 54115, USA
| | - L Ou
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - V Owen
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - B Pandey
- Hampton University, Hampton, Virginia 23669, USA
| | - V Pandey
- Department of Physics, University of Florida, Gainesville, Florida 32611, USA
| | - A Papadopoulou
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Park
- Stony Brook, State University of New York, New York 11794, USA
| | - M Patsyuk
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Paul
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | | | - E Piasetzky
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel
| | - R Pomatsalyuk
- Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - S Premathilake
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A J R Puckett
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - R Ransome
- Rutgers University, New Brunswick, New Jersey 08901, USA
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - S Riordan
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - M Sargsian
- Florida International University, Miami, Florida 33199, USA
| | - N Santiesteban
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - B Sawatzky
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - E P Segarra
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B Schmookler
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Shahinyan
- Yerevan Physics Institute, 0036 Yerevan, Armenia
| | - S Širca
- University of Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, Jožef Stefan Institute, SI-1000, Ljubljana, Slovenia
| | - R Skibiński
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - N Sparveris
- Columbia University, New York, New York 10027, USA
| | - T Su
- Kent State University, Kent, Ohio 44240, USA
| | - R Suleiman
- Jefferson Lab, Newport News, Virginia 23606, USA
| | | | - A S Tadepalli
- Rutgers University, New Brunswick, New Jersey 08901, USA
| | - L Tang
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - W Tireman
- Northern Michigan University, Marquette, Michigan 49855, USA
| | - K Topolnicki
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | - F Tortorici
- INFN Sezione di Catania, 95123 Catania, Italy
| | | | - L B Weinstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - H Witała
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30348 Kraków, Poland
| | | | - S Wood
- Jefferson Lab, Newport News, Virginia 23606, USA
| | - Z H Ye
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Z Y Ye
- University of Illinois-Chicago, Chicago, Illinois 60607, USA
| | - J Zhang
- Stony Brook, State University of New York, New York 11794, USA
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Dreier ES, Silvestre C, Kehres J, Turecek D, Khalil M, Hemmingsen JH, Hansen O, Jakubek J, Feidenhans'l R, Olsen UL. Single-shot, omni-directional x-ray scattering imaging with a laboratory source and single-photon localization. Opt Lett 2020; 45:1021-1024. [PMID: 32058533 DOI: 10.1364/ol.381420] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 12/23/2019] [Indexed: 05/23/2023]
Abstract
Omni-directional, ultra-small-angle x-ray scattering imaging provides a method to measure the orientation of micro-structures without having to resolve them. In this letter, we use single-photon localization with the Timepix3 chip to demonstrate, to the best of our knowledge, the first laboratory-based implementation of single-shot, omni-directional x-ray scattering imaging using the beam-tracking technique. The setup allows a fast and accurate retrieval of the scattering signal using a simple absorption mask. We suggest that our new approach may enable faster laboratory-based tensor tomography and could be used for energy-resolved x-ray scattering imaging.
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Nielsen M, Kristiansen C, Schytte T, Hansen O. Initial experiences with hippocampus-sparing whole-brain radiotherapy for lung cancer patients. Acta Oncol 2019; 58:1540-1542. [PMID: 31303085 DOI: 10.1080/0284186x.2019.1632479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- M. Nielsen
- Laboratory of Radiation Physics, Odense University Hospital, Odense, Denmark
| | - C. Kristiansen
- Department of Oncology, Odense University Hospital, Odense, Denmark
| | - T. Schytte
- Department of Oncology, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - O. Hansen
- Department of Oncology, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
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Schytte T, Bertelsen A, von Veldhuizen E, Møller P, Gottlieb K, Agergaard S, Dysager L, Hansen O, Gornitzka J, ODwyer D, Nielsen M, Mahmood F, Brink C, Bernchou U. Feasibility of Actinic Castration Treatment in Breast Cancer Patients Using MR Guided External Radiotherapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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De Backer G, Jankowski P, Kotseva K, Mirrakhimov E, Reiner Ž, Rydén L, Tokgözoğlu L, Wood D, De Bacquer D, De Backer G, Jankowski P, Kotseva K, Mirrakhimov E, Reiner Z, Rydén L, Tokgözoğlu L, Wood D, De Bacquer D, Kotseva K, De Backer G, Abreu A, Aguiar C, Badariene J, Bruthans J, Castro Conde A, Cifkova R, Crowley J, Davletov K, Bacquer DD, De Smedt D, De Sutter J, Deckers J, Dilic M, Dolzhenko M, Druais H, Dzerve V, Erglis A, Fras Z, Gaita D, Gotcheva N, Grobbee D, Gyberg V, Hasan Ali H, Heuschmann P, Hoes A, Jankowski P, Lalic N, Lehto S, Lovic D, Maggioni A, Mancas S, Marques-Vidal P, Mellbin L, Miličić D, Mirrakhimov E, Oganov R, Pogosova N, Reiner Ž, Rydén L, Stagmo M, Störk S, Sundvall J, Tokgözoğlu L, Tsioufis K, Vulic D, Wood D, Wood D, Kotseva K, Jennings C, Adamska A, Adamska S, Rydén L, Mellbin L, Tuomilehto J, Schnell O, Druais H, Fiorucci E, Glemot M, Larras F, Missiamenou V, Maggioni A, Taylor C, Ferreira T, Lemaitre K, Bacquer DD, De Backer G, Raman L, Sundvall J, DeSmedt D, De Sutter J, Willems A, De Pauw M, Vervaet P, Bollen J, Dekimpe E, Mommen N, Van Genechten G, Dendale P, Bouvier C, Chenu P, Huyberechts D, Persu A, Dilic M, Begic A, Durak Nalbantic A, Dzubur A, Hadzibegic N, Iglica A, Kapidjic S, Osmanagic Bico A, Resic N, Sabanovic Bajramovic N, Zvizdic F, Vulic D, Kovacevic-Preradovic T, Popovic-Pejicic S, Djekic D, Gnjatic T, Knezevic T, Kovacevic-Preradovic T, Kos L, Popovic-Pejicic S, Stanetic B, Topic G, Gotcheva N, Georgiev B, Terziev A, Vladimirov G, Angelov A, Kanazirev B, Nikolaeva S, Tonkova D, Vetkova M, Milicic D, Reiner Ž, Bosnic A, Dubravcic M, Glavina M, Mance M, Pavasovic S, Samardzic J, Batinic T, Crljenko K, Delic-Brkljacic D, Dula K, Golubic K, Klobucar I, Kordic K, Kos N, Nedic M, Olujic D, Sedinic V, Blazevic T, Pasalic A, Percic M, Sikic J, Bruthans J, Cífková R, Hašplová K, Šulc P, Wohlfahrt P, Mayer O, Cvíčela M, Filipovský J, Gelžinský J, Hronová M, Hasan-Ali H, Bakery S, Mosad E, Hamed H, Ibrahim A, Elsharef M, Kholef E, Shehata A, Youssef M, Elhefny E, Farid H, Moustafa T, Sobieh M, Kabil H, Abdelmordy A, Lehto S, Kiljander E, Kiljander P, Koukkunen H, Mustonen J, Cremer C, Frantz S, Haupt A, Hofmann U, Ludwig K, Melnyk H, Noutsias M, Karmann W, Prondzinsky R, Herdeg C, Hövelborn T, Daaboul A, Geisler T, Keller T, Sauerbrunn D, Walz-Ayed M, Ertl G, Leyh R, Störk S, Heuschmann P, Ehlert T, Klocke B, Krapp J, Ludwig T, Käs J, Starke C, Ungethüm K, Wagner M, Wiedmann S, Tsioufis K, Tolis P, Vogiatzi G, Sanidas E, Tsakalis K, Kanakakis J, Koutsoukis A, Vasileiadis K, Zarifis J, Karvounis C, Crowley J, Gibson I, Houlihan A, Kelly C, O'Donnell M, Bennati M, Cosmi F, Mariottoni B, Morganti M, Cherubini A, Di Lenarda A, Radini D, Ramani F, Francese M, Gulizia M, Pericone D, Davletov K, Aigerim K, Zholdin B, Amirov B, Assembekov B, Chernokurova E, Ibragimova F, Kodasbayev A, Markova A, Mirrakhimov E, Asanbaev A, Toktomamatov U, Tursunbaev M, Zakirov U, Abilova S, Arapova R, Bektasheva E, Esenbekova J, Neronova K, Asanbaev A, Baigaziev K, Toktomamatov U, Zakirov U, Baitova G, Zheenbekov T, Erglis A, Andrejeva T, Bajare I, Kucika G, Labuce A, Putane L, Stabulniece M, Dzerve V, Klavins E, Sime I, Badariene J, Gedvilaite L, Pečiuraite D, Sileikienė V, Skiauteryte E, Solovjova S, Sidabraite R, Briedis K, Ceponiene I, Jurenas M, Kersulis J, Martinkute G, Vaitiekiene A, Vasiljevaite K, Veisaite R, Plisienė J, Šiurkaitė V, Vaičiulis Ž, Jankowski P, Czarnecka D, Kozieł P, Podolec P, Nessler J, Gomuła P, Mirek-Bryniarska E, Bogacki P, Wiśniewski A, Pająk A, Wolfshaut-Wolak R, Bućko J, Kamiński K, Łapińska M, Paniczko M, Raczkowski A, Sawicka E, Stachurska Z, Szpakowicz M, Musiał W, Dobrzycki S, Bychowski J, Kosior D, Krzykwa A, Setny M, Kosior D, Rak A, Gąsior Z, Haberka M, Gąsior Z, Haberka M, Szostak-Janiak K, Finik M, Liszka J, Botelho A, Cachulo M, Sousa J, Pais A, Aguiar C, Durazzo A, Matos D, Gouveia R, Rodrigues G, Strong C, Guerreiro R, Aguiar J, Abreu A, Cruz M, Daniel P, Morais L, Moreira R, Rosa S, Rodrigues I, Selas M, Gaita D, Mancas S, Apostu A, Cosor O, Gaita L, Giurgiu L, Hudrea C, Maximov D, Moldovan B, Mosteoru S, Pleava R, Ionescu M, Parepa I, Pogosova N, Arutyunov A, Ausheva A, Isakova S, Karpova A, Salbieva A, Sokolova O, Vasilevsky A, Pozdnyakov Y, Antropova O, Borisova L, Osipova I, Lovic D, Aleksic M, Crnokrak B, Djokic J, Hinic S, Vukasin T, Zdravkovic M, Lalic N, Jotic A, Lalic K, Lukic L, Milicic T, Macesic M, Stanarcic Gajovic J, Stoiljkovic M, Djordjevic D, Kostic S, Tasic I, Vukovic A, Fras Z, Jug B, Juhant A, Krt A, Kugonjič U, Chipayo Gonzales D, Gómez Barrado J, Kounka Z, Marcos Gómez G, Mogollón Jiménez M, Ortiz Cortés C, Perez Espejo P, Porras Ramos Y, Colman R, Delgado J, Otero E, Pérez A, Fernández-Olmo M, Torres-LLergo J, Vasco C, Barreñada E, Botas J, Campuzano R, González Y, Rodrigo M, de Pablo C, Velasco E, Hernández S, Lozano C, González P, Castro A, Dalmau R, Hernández D, Irazusta F, Vélez A, Vindel C, Gómez-Doblas J, García Ruíz V, Gómez L, Gómez García M, Jiménez-Navarro M, Molina Ramos A, Marzal D, Martínez G, Lavado R, Vidal A, Rydén L, Boström-Nilsson V, Kjellström B, Shahim B, Smetana S, Hansen O, Stensgaard-Nake E, Deckers J, Klijn A, Mangus T, Peters R, Scholte op Reimer W, Snaterse M, Aydoğdu S, Ç Erol, Otürk S, Tulunay Kaya C, Ahmetoğlu Y, Ergene O, Akdeniz B, Çırgamış D, Akkoyun H Kültürsay S, Kayıkçıoğlu M, Çatakoğlu A, Çengel A, Koçak A, Ağırbaşlı M, Açıksarı G, Çekin M, Tokgözoğlu L, Kaya E, Koçyiğit D, Öngen Z, Özmen E, Sansoy V, Kaya A, Oktay V, Temizhan A, Ünal S, İ Yakut, Kalkan A, Bozkurt E, Kasapkara H, Dolzhenko M, Faradzh C, Hrubyak L, Konoplianyk L, Kozhuharyova N, Lobach L, Nesukai V, Nudchenko O, Simagina T, Yakovenko L, Azarenko V, Potabashny V, Bazylevych A, Bazylevych M, Kaminska K, Panchenko L, Shershnyova O, Ovrakh T, Serik S, Kolesnik T, Kosova H, Wood D, Adamska A, Adamska S, Jennings C, Kotseva K, Hoye P Atkin A, Fellowes D, Lindsay S, Atkinson C, Kranilla C, Vinod M, Beerachee Y, Bennett C, Broome M, Bwalya A, Caygill L, Dinning L, Gillespie A, Goodfellow R, Guy J, Idress T, Mills C, Morgan C, Oustance N, Singh N, Yare M, Jagoda J, Bowyer H, Christenssen V, Groves A, Jan A, Riaz A, Gill M, Sewell T, Gorog D, Baker M, De Sousa P, Mazenenga T, Porter J, Haines F, Peachey T, Taaffe J, Wells K, Ripley D, Forward H, McKie H, Pick S, Thomas H, Batin P, Exley D, Rank T, Wright J, Kardos A, Sutherland SB, Wren L, Leeson P, Barker D, Moreby B, Sawyer J, Stirrup J, Brunton M, Brodison A, Craig J, Peters S, Kaprielian R, Bucaj A, Mahay K, Oblak M, Gale C, Pye M, McGill Y, Redfearn H, Fearnley M. Management of dyslipidaemia in patients with coronary heart disease: Results from the ESC-EORP EUROASPIRE V survey in 27 countries. Atherosclerosis 2019; 285:135-146. [DOI: 10.1016/j.atherosclerosis.2019.03.014] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/22/2019] [Accepted: 03/19/2019] [Indexed: 12/16/2022]
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Persson G, Schytte T, Appelt A, Borissova S, Brink C, Hansen T, Hoffmann L, Josipovic M, Khalil A, Knap M, Lund M, Lutz C, Møller D, Nielsen T, Nielsen M, Ottosson W, Pøhl M, Thomsen J, Hansen O. EP-1352 Locally advanced NSCLC: performance status based eligibility for adjuvant check point inhibitor. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31772-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Jelin M, Kristiansen C, Jeppesen S, Nielsen M, Hansen O. EP-1361 Survival after two schedules of SBRT to centrally located lung tumors. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31781-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Havreland AS, Engholm M, Tomov BG, Jensen JA, Hansen O, Thomsen EV. CMUT Electrode Resistance Design: Modelling and Experimental Verification by a Row-Column Array. IEEE Trans Ultrason Ferroelectr Freq Control 2019; 66:1110-1118. [PMID: 30908215 DOI: 10.1109/tuffc.2019.2906795] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This paper addresses the importance of having control over the resistivity of the electrodes for capacitive micromachined ultrasonic transducers (CMUT) devices. The electrode resistivity can vary depending on the fabrication technology used, and resistivity control becomes especially important in the cases where metal electrodes can not be used. This raises the question: When is the resistivity of an electrode sufficiently low? To answer this question we have developed a simple design criterion. The criterion describes the attenuation of AC signals along a CMUT element. It is shown that the non-dimensional product between angular excitation frequency, resistance, and capacitance ωRC of an element has to be smaller than 0.35 to ensure an AC potential drop along the element of less than 1%. The optimal magnitude and directionality of the transmit pressure will be achieved if CMUT elements are designed according to the developed criteria. Hence, the model can be used to estimate device parameters that will ensure the CMUT is suitable for generating ultrasound images. An example is given where the model is used to predict the required electrode thickness for structured electrodes made of Gold, Aluminium, and Indium-Tin-Oxide, respectively. To verify the model, two Row-Column addressed (RCA) CMUT transducers were used to illustrate the effect of high and low electrode resistivity. One transducer had a sufficient electrode resistivity, and the other had an insufficient electrode resistivity. The RCA CMUT transducers were fabricated using fusion bonding, where the top electrode is made of aluminium and the bottom electrode is made of doped silicon. The resistivity of the aluminium top electrode is 2×10-6 Ωcm for both transducers, whereas the resistivity for the bottom electrode is 0.1 Ωcm for the first transducer and 0.005 Ωcm for the second transducer. The transducer with low resistivity emits pressure uniformly along both the rows and columns, whereas the transmit pressure field from the other transducer has a uniformly distributed pressure field along the rows, but a decreasing pressure field along the columns due to the high resistivity in the bottom electrode. The pressure drop, along the columns is frequency dependent and has been observed to be 63%, 74%, and 82% for the excitation frequencies 2 MHz, 4.5 MHz, and 7 MHz, respectively.
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Davidsen RS, Hemanth S, Keller SS, Bek T, Hansen O. Evaluation of the capacitive behavior of 3D carbon electrodes for sub-retinal photovoltaic prosthesis. Micro and Nano Engineering 2019. [DOI: 10.1016/j.mne.2019.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bae D, Seger B, Hansen O, Vesborg PCK, Chorkendorff I. Durability Testing of Photoelectrochemical Hydrogen Production under Day/Night Light Cycled Conditions. ChemElectroChem 2018. [DOI: 10.1002/celc.201800918] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dowon Bae
- Surface Physics & Catalysis (SurfCat) Department of Physics; Technical University of Denmark Fysikvej B311; 2800 Kongens Lyngby Denmark
- Current address: Materials for Energy Conversion and Storage (MECS), Department of Chemical Engineering; Delft University of Technology
| | - Brian Seger
- Surface Physics & Catalysis (SurfCat) Department of Physics; Technical University of Denmark Fysikvej B311; 2800 Kongens Lyngby Denmark
| | - Ole Hansen
- Surface Physics & Catalysis (SurfCat) Department of Physics; Technical University of Denmark Fysikvej B311; 2800 Kongens Lyngby Denmark
- Department of Micro- and Nanotechnology; Technical University of Denmark Ørsteds Plads B344; 2800 Kongens Lyngby Denmark
| | - Peter C. K. Vesborg
- Surface Physics & Catalysis (SurfCat) Department of Physics; Technical University of Denmark Fysikvej B311; 2800 Kongens Lyngby Denmark
| | - Ib Chorkendorff
- Surface Physics & Catalysis (SurfCat) Department of Physics; Technical University of Denmark Fysikvej B311; 2800 Kongens Lyngby Denmark
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Bækbo MJ, Hansen O, Chorkendorff I, Vesborg PCK. Deposition of methylammonium iodide via evaporation - combined kinetic and mass spectrometric study. RSC Adv 2018; 8:29899-29908. [PMID: 35547320 PMCID: PMC9085246 DOI: 10.1039/c8ra04851g] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 08/08/2018] [Indexed: 11/24/2022] Open
Abstract
Methylammonium lead halide perovskites have recently emerged as a very attractive and versatile material for solar cell production. Several different perovskite fabrication methods can be used though most of them involve either spin coating, evaporation under high vacuum or a combination hereof. In this study we focus on thermal evaporation of methylammonium iodide (MAI), or more specifically, why this process, in terms of a physical vapour deposition, requires such a high deposition pressure to be successful. We use quartz crystal micro balance (QCM) measurements as well as mass spectrometry. The results indicate that MAI has a very low sticking especially if the substrate is held at elevated temperatures and is furthermore observed to evaporate with disproportionation into primarily CH3NH2 and HI. Even when PbCl2 is deposited on the QCM crystal, so that CH3NH3PbI(3-x)Cl x perovskite can form, the MAI sticking remains low, possibly due to the requirement that both species be present on the film surface at the same time to form the perovskite. The results provide guidelines for designing a perovskite deposition chamber and additionally fundamental information about MAI evaporation.
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Affiliation(s)
- Martin J Bækbo
- Surfcat, Technical University of Denmark Fysikvej, Building 312, 2800 Kgs. Lyngby Denmark
| | - Ole Hansen
- Department of Micro- and Nanotechnology, Technical University of Denmark 2800 Kgs. Lyngby Denmark
| | - Ib Chorkendorff
- Surfcat, Technical University of Denmark Fysikvej, Building 312, 2800 Kgs. Lyngby Denmark
| | - Peter C K Vesborg
- Surfcat, Technical University of Denmark Fysikvej, Building 312, 2800 Kgs. Lyngby Denmark
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47
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Witthøft ML, Østerberg FW, Bogdanowicz J, Lin R, Henrichsen HH, Hansen O, Petersen DH. A variable probe pitch micro-Hall effect method. Beilstein J Nanotechnol 2018; 9:2032-2039. [PMID: 30116693 PMCID: PMC6071715 DOI: 10.3762/bjnano.9.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 07/06/2018] [Indexed: 06/08/2023]
Abstract
Hall effect metrology is important for a detailed characterization of the electronic properties of new materials for nanoscale electronics. The micro-Hall effect (MHE) method, based on micro four-point probes, enables a fast characterization of ultrathin films with minimal sample preparation. Here, we study in detail how the analysis of raw measurement data affects the accuracy of extracted key sample parameters, i.e., how the standard deviation on sheet resistance, carrier mobility and Hall sheet carrier density is affected by the data analysis used. We compare two methods, based primarily on either the sheet resistance signals or the Hall resistance signals, by theoretically analysing the effects of electrode position errors and electrical noise on the standard deviations. We verify the findings with a set of experimental data measured on an ultrashallow junction silicon sample. We find that in presence of significant electrical noise, lower standard deviation is always obtained when the geometrical analysis is based on the sheet resistance signals. The situation is more complicated when electrode position errors are dominant; in that case, the better method depends on the experimental conditions, i.e., the distance between the insulating boundary and the electrodes. Improvement to the accuracy of Hall Effect measurement results is crucial for nanoscale metrology, since surface scattering often leads to low carrier mobility.
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Affiliation(s)
- Maria-Louise Witthøft
- DTU Nanotech, Technical University of Denmark, Building 345 East, DK-2800 Kgs. Lyngby, Denmark
| | | | | | - Rong Lin
- CAPRES A/S, Scion-DTU, Building 373, DK-2800 Kgs. Lyngby, Denmark
| | | | - Ole Hansen
- DTU Nanotech, Technical University of Denmark, Building 345 East, DK-2800 Kgs. Lyngby, Denmark
| | - Dirch H Petersen
- DTU Nanotech, Technical University of Denmark, Building 345 East, DK-2800 Kgs. Lyngby, Denmark
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48
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Folkersma S, Bogdanowicz J, Schulze A, Favia P, Petersen DH, Hansen O, Henrichsen HH, Nielsen PF, Shiv L, Vandervorst W. Electrical characterization of single nanometer-wide Si fins in dense arrays. Beilstein J Nanotechnol 2018; 9:1863-1867. [PMID: 30013880 PMCID: PMC6036976 DOI: 10.3762/bjnano.9.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 06/05/2018] [Indexed: 06/08/2023]
Abstract
This paper demonstrates the development of a methodology using the micro four-point probe (μ4PP) technique to electrically characterize single nanometer-wide fins arranged in dense arrays. We show that through the concept of carefully controlling the electrical contact formation process, the electrical measurement can be confined to one individual fin although the used measurement electrodes physically contact more than one fin. We demonstrate that we can precisely measure the resistance of individual ca. 20 nm wide fins and that we can correlate the measured variations in fin resistance with variations in their nanometric width. Due to the demonstrated high precision of the technique, this opens the prospect for the use of μ4PP in electrical critical dimension metrology.
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Affiliation(s)
- Steven Folkersma
- IMEC, Kapeldreef 75, B-3000 Leuven, Belgium
- Instituut voor Kern- en Stralingsfysika, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | | | | | | | - Dirch H Petersen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech Building 345 East, DK-2800 Kgs. Lyngby, Denmark
| | - Ole Hansen
- Department of Micro- and Nanotechnology, Technical University of Denmark, DTU Nanotech Building 345 East, DK-2800 Kgs. Lyngby, Denmark
| | | | - Peter F Nielsen
- CAPRES A/S, Scion-DTU, Building 373, DK-2800 Kgs. Lyngby, Denmark
| | - Lior Shiv
- CAPRES A/S, Scion-DTU, Building 373, DK-2800 Kgs. Lyngby, Denmark
| | - Wilfried Vandervorst
- IMEC, Kapeldreef 75, B-3000 Leuven, Belgium
- Instituut voor Kern- en Stralingsfysika, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
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49
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Hansen O, Kristiansen C, Jeppesen S, Nielsen T, Schytte T, Nielsen M. EP-1374: SBRT for new lesions after surgery or curative intended radiotherapy in patients with NSCLC. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31683-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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50
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Vilsbøll T, Bain SC, Consoli A, Davies M, Bergan EQ, Hansen O, Lingvay I, Jacob S. Semaglutid ermöglichte eine anhaltende Abnahme des Körpergewichts bei Patienten mit Typ 2 Diabetes über 2 Jahre. DIABETOL STOFFWECHS 2018. [DOI: 10.1055/s-0038-1641902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- T Vilsbøll
- Center for Diabetes Research, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
| | - SC Bain
- School of Medicine, Swansea University, Swansea, United Kingdom
| | - A Consoli
- DMSI und CeSI-MeT, G. d'Annunzio University, Chieti-Pescara, Italy
| | - M Davies
- Diabetes Research Centre University of Leicester, Leicester, United Kingdom
| | | | | | - I Lingvay
- University of Texas Southwestern Medical Center, Dallas, United States
| | - S Jacob
- Internist, Endokrinologe und Diabetologe, Kardio-Metabolisches Institut, Villingen-Schwenningen, Germany
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