1
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Low divergent MeV-class proton beam with micrometer source size driven by a few-cycle laser pulse. Sci Rep 2022; 12:8100. [PMID: 35577999 PMCID: PMC9110398 DOI: 10.1038/s41598-022-12240-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 04/14/2022] [Indexed: 11/09/2022] Open
Abstract
Spatial characterization of 0.5 MeV proton beam, driven by 12 fs, 35 mJ, 1019 W/cm2 intense laser-foil interaction is presented. The accelerated proton beam has been applied to obtain a high-resolution, point-projection static radiograph of a fine mesh using a CR-39 plate. The reconstruction of mesh edge blurring and particle ray tracing suggests that these protons have an effective source size (FWHM) of just 3.3 ± 0.3 µm. Furthermore, the spatial distribution of the proton beam recorded on the CR-39 showed that the divergence of these particles is less than 5-degree (FWHM). The low divergence and small source size of the proton beam resulted in an ultralow transverse emittance of 0.00032 π-mm-mrad, which is several orders of magnitude smaller than that of a conventional accelerator beam.
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2
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First on-line detection of radioactive fission isotopes produced by laser-accelerated protons. Sci Rep 2020; 10:17183. [PMID: 33057082 PMCID: PMC7560739 DOI: 10.1038/s41598-020-74045-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 09/24/2020] [Indexed: 12/04/2022] Open
Abstract
The on-going developments in laser acceleration of protons and light ions, as well as the production of strong bursts of neutrons and multi-\documentclass[12pt]{minimal}
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\begin{document}$$\hbox {MeV}$$\end{document}MeV photons by secondary processes now provide a basis for novel high-flux nuclear physics experiments. While the maximum energy of protons resulting from Target Normal Sheath Acceleration is presently still limited to around \documentclass[12pt]{minimal}
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\begin{document}$$100 \, \hbox {MeV}$$\end{document}100MeV, the generated proton peak flux within the short laser-accelerated bunches can already today exceed the values achievable at the most advanced conventional accelerators by orders of magnitude. This paper consists of two parts covering the scientific motivation and relevance of such experiments and a first proof-of-principle demonstration. In the presented experiment pulses of \documentclass[12pt]{minimal}
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\begin{document}$$200 \, \hbox {J}$$\end{document}200J at \documentclass[12pt]{minimal}
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\begin{document}$$\approx \, 500 \, \hbox {fs}$$\end{document}≈500fs duration from the PHELIX laser produced more than \documentclass[12pt]{minimal}
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\begin{document}$$10^{12}$$\end{document}1012 protons with energies above \documentclass[12pt]{minimal}
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\begin{document}$$15 \, \hbox {MeV}$$\end{document}15MeV in a bunch of sub-nanosecond duration. They were used to induce fission in foil targets made of natural uranium. To make use of the nonpareil flux, these targets have to be very close to the laser acceleration source, since the particle density within the bunch is strongly affected by Coulomb explosion and the velocity differences between ions of different energy. The main challenge for nuclear detection with high-purity germanium detectors is given by the strong electromagnetic pulse caused by the laser-matter interaction close to the laser acceleration source. This was mitigated by utilizing fast transport of the fission products by a gas flow to a carbon filter, where the \documentclass[12pt]{minimal}
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\begin{document}$$\upgamma$$\end{document}γ-rays were registered. The identified nuclides include those that have half-lives down to \documentclass[12pt]{minimal}
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\begin{document}$$39 \, \hbox {s}$$\end{document}39s. These results demonstrate the capability to produce, extract, and detect short-lived reaction products under the demanding experimental condition imposed by the high-power laser interaction. The approach promotes research towards relevant nuclear astrophysical studies at conditions currently only accessible at nuclear high energy density laser facilities.
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3
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Brack FE, Kroll F, Gaus L, Bernert C, Beyreuther E, Cowan TE, Karsch L, Kraft S, Kunz-Schughart LA, Lessmann E, Metzkes-Ng J, Obst-Huebl L, Pawelke J, Rehwald M, Schlenvoigt HP, Schramm U, Sobiella M, Szabó ER, Ziegler T, Zeil K. Spectral and spatial shaping of laser-driven proton beams using a pulsed high-field magnet beamline. Sci Rep 2020; 10:9118. [PMID: 32499539 PMCID: PMC7272427 DOI: 10.1038/s41598-020-65775-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 05/11/2020] [Indexed: 01/19/2023] Open
Abstract
Intense laser-driven proton pulses, inherently broadband and highly divergent, pose a challenge to established beamline concepts on the path to application-adapted irradiation field formation, particularly for 3D. Here we experimentally show the successful implementation of a highly efficient (50% transmission) and tuneable dual pulsed solenoid setup to generate a homogeneous (laterally and in depth) volumetric dose distribution (cylindrical volume of 5 mm diameter and depth) at a single pulse dose of 0.7 Gy via multi-energy slice selection from the broad input spectrum. The experiments were conducted at the Petawatt beam of the Dresden Laser Acceleration Source Draco and were aided by a predictive simulation model verified by proton transport studies. With the characterised beamline we investigated manipulation and matching of lateral and depth dose profiles to various desired applications and targets. Using an adapted dose profile, we performed a first proof-of-technical-concept laser-driven proton irradiation of volumetric in-vitro tumour tissue (SAS spheroids) to demonstrate concurrent operation of laser accelerator, beam shaping, dosimetry and irradiation procedure of volumetric biological samples.
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Affiliation(s)
- Florian-Emanuel Brack
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany. .,Technische Universität Dresden, 01062, Dresden, Germany.
| | - Florian Kroll
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany
| | - Lennart Gaus
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Constantin Bernert
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Elke Beyreuther
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany.,OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, TU Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Thomas E Cowan
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Leonhard Karsch
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany.,OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, TU Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Stephan Kraft
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany
| | - Leoni A Kunz-Schughart
- OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, TU Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany.,National Center for Tumor Diseases (NCT), partner site Dresden, Dresden, Germany
| | | | | | - Lieselotte Obst-Huebl
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany.,Lawrence Berkeley National Laboratory, Berkeley, California, 94720, USA
| | - Jörg Pawelke
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany.,OncoRay - National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, TU Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Martin Rehwald
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | | | - Ulrich Schramm
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | | | - Emília Rita Szabó
- ELI-ALPS, ELI-HU Non-Profit Ltd., Wolfgang Sandner utca 3, Szeged, H-6728, Hungary
| | - Tim Ziegler
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Karl Zeil
- Helmholtz-Zentrum Dresden - Rossendorf, 01328, Dresden, Germany
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4
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I-BEAT: Ultrasonic method for online measurement of the energy distribution of a single ion bunch. Sci Rep 2019; 9:6714. [PMID: 31040311 PMCID: PMC6491586 DOI: 10.1038/s41598-019-42920-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 04/10/2019] [Indexed: 11/08/2022] Open
Abstract
The shape of a wave carries all information about the spatial and temporal structure of its source, given that the medium and its properties are known. Most modern imaging methods seek to utilize this nature of waves originating from Huygens' principle. We discuss the retrieval of the complete kinetic energy distribution from the acoustic trace that is recorded when a short ion bunch deposits its energy in water. This novel method, which we refer to as Ion-Bunch Energy Acoustic Tracing (I-BEAT), is a refinement of the ionoacoustic approach. With its capability of completely monitoring a single, focused proton bunch with prompt readout and high repetition rate, I-BEAT is a promising approach to meet future requirements of experiments and applications in the field of laser-based ion acceleration. We demonstrate its functionality at two laser-driven ion sources for quantitative online determination of the kinetic energy distribution in the focus of single proton bunches.
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5
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Obst-Huebl L, Ziegler T, Brack FE, Branco J, Bussmann M, Cowan TE, Curry CB, Fiuza F, Garten M, Gauthier M, Göde S, Glenzer SH, Huebl A, Irman A, Kim JB, Kluge T, Kraft SD, Kroll F, Metzkes-Ng J, Pausch R, Prencipe I, Rehwald M, Roedel C, Schlenvoigt HP, Schramm U, Zeil K. All-optical structuring of laser-driven proton beam profiles. Nat Commun 2018; 9:5292. [PMID: 30546015 PMCID: PMC6294339 DOI: 10.1038/s41467-018-07756-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 11/19/2018] [Indexed: 11/09/2022] Open
Abstract
Extreme field gradients intrinsic to relativistic laser-interactions with thin solid targets enable compact MeV proton accelerators with unique bunch characteristics. Yet, direct control of the proton beam profile is usually not possible. Here we present a readily applicable all-optical approach to imprint detailed spatial information from the driving laser pulse onto the proton bunch. In a series of experiments, counter-intuitively, the spatial profile of the energetic proton bunch was found to exhibit identical structures as the fraction of the laser pulse passing around a target of limited size. Such information transfer between the laser pulse and the naturally delayed proton bunch is attributed to the formation of quasi-static electric fields in the beam path by ionization of residual gas. Essentially acting as a programmable memory, these fields provide access to a higher level of proton beam manipulation.
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Affiliation(s)
- Lieselotte Obst-Huebl
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany. .,Technische Universität Dresden, 01062, Dresden, Germany.
| | - Tim Ziegler
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Florian-Emanuel Brack
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - João Branco
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Michael Bussmann
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany
| | - Thomas E Cowan
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Chandra B Curry
- High Energy Density Science Division, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.,University of Alberta, Edmonton, Alberta, T6G 1H9, Canada
| | - Frederico Fiuza
- High Energy Density Science Division, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Marco Garten
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Maxence Gauthier
- High Energy Density Science Division, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Sebastian Göde
- European XFEL GmbH, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Siegfried H Glenzer
- High Energy Density Science Division, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Axel Huebl
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Arie Irman
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany
| | - Jongjin B Kim
- High Energy Density Science Division, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Thomas Kluge
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany
| | - Stephan D Kraft
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany
| | - Florian Kroll
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany
| | - Josefine Metzkes-Ng
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany
| | - Richard Pausch
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Irene Prencipe
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany
| | - Martin Rehwald
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | | | - Hans-Peter Schlenvoigt
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany
| | - Ulrich Schramm
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany.,Technische Universität Dresden, 01062, Dresden, Germany
| | - Karl Zeil
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Radiation Physics, Bautzner Landstr. 400, 01328, Dresden, Germany
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6
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Würl M, Englbrecht FS, Lehrack S, Gianoli C, Lindner FH, Rösch TF, Haffa D, Olivari F, Petasecca M, Lerch MLF, Pogossov A, Tran LT, Assmann W, Schreiber J, Rosenfeld AB, Parodi K. Time-of-flight spectrometry of ultra-short, polyenergetic proton bunches. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:123302. [PMID: 30599609 DOI: 10.1063/1.5052059] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 11/26/2018] [Indexed: 06/09/2023]
Abstract
A common approach for spectrum determination of polyenergetic proton bunches from laser-ion acceleration experiments is based on the time-of-flight (TOF) method. However, spectra obtained using this method are typically given in relative units or are estimated based on some prior assumptions on the energy distribution of the accelerated ions. In this work, we present a new approach using the TOF method that allows for an absolute energy spectrum reconstruction from a current signal acquired with a sub-nanosecond fast and 10 µm thin silicon detector. The reconstruction is based on solving a linear least-squares problem, taking into account the response function of the detection system. The general principle of signal generation and spectrum reconstruction by setting up an appropriate system response matrix is presented. Proof-of-principle experiments at a 12 MV Tandem accelerator using different nanosecond-short (quasi-)monoenergetic and polyenergetic proton bunches at energies up to 20 MeV were successfully performed. Within the experimental uncertainties of 2.4% and 12.1% for energy and particle number, respectively, reconstructed energy distributions were found in excellent agreement with the spectra calculated using Monte Carlo simulations and measured by a magnetic spectrometer. This TOF method can hence be used for absolute online spectrometry of laser-accelerated particle bunches.
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Affiliation(s)
- Matthias Würl
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, 85748 Garching, Germany
| | - Franz S Englbrecht
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, 85748 Garching, Germany
| | - Sebastian Lehrack
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, 85748 Garching, Germany
| | - Chiara Gianoli
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, 85748 Garching, Germany
| | - Florian H Lindner
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, 85748 Garching, Germany
| | - Thomas F Rösch
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, 85748 Garching, Germany
| | - Daniel Haffa
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, 85748 Garching, Germany
| | - Francesco Olivari
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, 85748 Garching, Germany
| | - Marco Petasecca
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Michael L F Lerch
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Alexandre Pogossov
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Linh T Tran
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Walter Assmann
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, 85748 Garching, Germany
| | - Jörg Schreiber
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, 85748 Garching, Germany
| | - Anatoly B Rosenfeld
- Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Katia Parodi
- Department of Medical Physics, Faculty of Physics, Ludwig-Maximilians-Universität München, 85748 Garching, Germany
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7
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Jahn D, Träger M, Kis M, Brabetz C, Schumacher D, Blažević A, Ciobanu M, Pomorski M, Bonnes U, Busold S, Kroll F, Brack FE, Schramm U, Roth M. Chemical-vapor deposited ultra-fast diamond detectors for temporal measurements of ion bunches. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:093304. [PMID: 30278706 DOI: 10.1063/1.5048667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 09/09/2018] [Indexed: 06/08/2023]
Abstract
This article reports on the development of thin diamond detectors and their characterization for their application in temporal profile measurements of subnanosecond ion bunches. Two types of diamonds were used: a 20 μm thin polycrystalline chemical vapor deposited (CVD) diamond and a membrane with a thickness of (5 ± 1) μm etched out of a single crystal (sc) CVD diamond. The combination of a small detector electrode and an impedance matched signal outlet leads to excellent time response properties with a signal pulse resolution (FWHM) of τ = (113 ± 11) ps. Such a fast diamond detector is a perfect device for the time of flight measurements of MeV ions with bunch durations in the subnanosecond regime. The scCVD diamond membrane detector was successfully implemented within the framework of the laser ion generation handling and transport project, in which ion beams are accelerated via a laser-driven source and shaped with conventional accelerator technology. The detector was used to measure subnanosecond proton bunches with an intensity of 108 protons per bunch.
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Affiliation(s)
- D Jahn
- Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstraße 9, D-64289 Darmstadt, Germany
| | - M Träger
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany
| | - M Kis
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany
| | - C Brabetz
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany
| | - D Schumacher
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany
| | - A Blažević
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany
| | - M Ciobanu
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany
| | - M Pomorski
- CEA-LIST, Diamond Sensors Laboratory, Gif-sur-Yvette F-91191, France
| | - U Bonnes
- Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstraße 9, D-64289 Darmstadt, Germany
| | - S Busold
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany
| | - F Kroll
- Technische Universität Dresden, Mommsenstr. 13, 01069 Dresden, Germany
| | - F-E Brack
- Technische Universität Dresden, Mommsenstr. 13, 01069 Dresden, Germany
| | - U Schramm
- Technische Universität Dresden, Mommsenstr. 13, 01069 Dresden, Germany
| | - M Roth
- Institut für Kernphysik, Technische Universität Darmstadt, Schloßgartenstraße 9, D-64289 Darmstadt, Germany
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8
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Design and optimization of a compact laser-driven proton beamline. Sci Rep 2018; 8:6299. [PMID: 29674639 PMCID: PMC5908965 DOI: 10.1038/s41598-018-24391-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 03/19/2018] [Indexed: 11/08/2022] Open
Abstract
Laser-accelerated protons, generated by irradiating a solid target with a short, energetic laser pulse at high intensity (I > 1018 W·cm-2), represent a complementary if not outperforming source compared to conventional accelerators, due to their intrinsic features, such as high beam charge and short bunch duration. However, the broadband energy spectrum of these proton sources is a bottleneck that precludes their use in applications requiring a more reduced energy spread. Consequently, in recent times strong effort has been put to overcome these limits and to develop laser-driven proton beamlines with low energy spread. In this paper, we report on beam dynamics simulations aiming at optimizing a laser-driven beamline - i.e. a laser-based proton source coupled to conventional magnetic beam manipulation devices - producing protons with a reduced energy spread, usable for applications. The energy range of investigation goes from 2 to 20 MeV, i.e. the typical proton energies that can be routinely obtained using commercial TW-power class laser systems. Our beamline design is capable of reducing the energy spread below 20%, still keeping the overall transmission efficiency around 1% and producing a proton spot-size in the range of 10 mm2. We briefly discuss the results in the context of applications in the domain of Cultural Heritage.
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9
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Masood U, Cowan TE, Enghardt W, Hofmann KM, Karsch L, Kroll F, Schramm U, Wilkens JJ, Pawelke J. A light-weight compact proton gantry design with a novel dose delivery system for broad-energetic laser-accelerated beams. Phys Med Biol 2017; 62:5531-5555. [DOI: 10.1088/1361-6560/aa7124] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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10
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Laser-Accelerated Proton Beams as Diagnostics for Cultural Heritage. Sci Rep 2017; 7:40415. [PMID: 28266496 PMCID: PMC5339728 DOI: 10.1038/srep40415] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 12/07/2016] [Indexed: 11/08/2022] Open
Abstract
This paper introduces the first use of laser-generated proton beams as diagnostic for materials of interest in the domain of Cultural Heritage. Using laser-accelerated protons, as generated by interaction of a high-power short-pulse laser with a solid target, we can produce proton-induced X-ray emission spectroscopies (PIXE). By correctly tuning the proton flux on the sample, we are able to perform the PIXE in a single shot without provoking more damage to the sample than conventional methodologies. We verify this by experimentally irradiating materials of interest in the Cultural Heritage with laser-accelerated protons and measuring the PIXE emission. The morphological and chemical analysis of the sample before and after irradiation are compared in order to assess the damage provoked to the artifact. Montecarlo simulations confirm that the temperature in the sample stays safely below the melting point. Compared to conventional diagnostic methodologies, laser-driven PIXE has the advantage of being potentially quicker and more efficient.
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Schreiber J, Bolton PR, Parodi K. Invited Review Article: "Hands-on" laser-driven ion acceleration: A primer for laser-driven source development and potential applications. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:071101. [PMID: 27475539 DOI: 10.1063/1.4959198] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 07/09/2016] [Indexed: 06/06/2023]
Abstract
An overview of progress and typical yields from intense laser-plasma acceleration of ions is presented. The evolution of laser-driven ion acceleration at relativistic intensities ushers prospects for improved functionality and diverse applications which can represent a varied assortment of ion beam requirements. This mandates the development of the integrated laser-driven ion accelerator system, the multiple components of which are described. Relevant high field laser-plasma science and design of controlled optimum pulsed laser irradiation on target are dominant single shot (pulse) considerations with aspects that are appropriate to the emerging petawatt era. The pulse energy scaling of maximum ion energies and typical differential spectra obtained over the past two decades provide guidance for continued advancement of laser-driven energetic ion sources and their meaningful applications.
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Affiliation(s)
- J Schreiber
- Lehrstuhl für Medizinphysik, Fakultät für Physik, Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching bei München, Germany
| | - P R Bolton
- Lehrstuhl für Medizinphysik, Fakultät für Physik, Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching bei München, Germany
| | - K Parodi
- Lehrstuhl für Medizinphysik, Fakultät für Physik, Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching bei München, Germany
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Seidl PA, Barnard JJ, Davidson RC, Friedman A, Gilson EP, Grote D, Ji Q, Kaganovich ID, Persaud A, Waldron WL, Schenkel T. Short-pulse, compressed ion beams at the Neutralized Drift Compression Experiment. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/717/1/012079] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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