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Krupka M, Singh S, Pisarczyk T, Dostal J, Kalal M, Krasa J, Dudzak R, Burian T, Jelinek S, Chodukowski T, Rusiniak Z, Krus M, Juha L. Design of modular multi-channel electron spectrometers for application in laser matter interaction experiments at Prague Asterix Laser System. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:023514. [PMID: 33648071 DOI: 10.1063/5.0029849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 01/31/2021] [Indexed: 06/12/2023]
Abstract
This paper describes design, development, and implementation of a multi-channel magnetic electron spectrometer for the application in laser-plasma interaction experiments carried out at the Prague Asterix Laser System. Modular design of the spectrometer allows the setup in variable configurations to evaluate the angular distribution of hot electron emission. The angular array configuration of the electron spectrometers consists of 16 channels mounted around the target. The modules incorporate a plastic electron collimator designed to suppress the secondary radiation by absorbing the wide angle scattered electrons and photons inside the collimator. The compact model of the spectrometer measures electron energies in the range from 50 keV to 1.5MeV using ferrite magnets and from 250 keV to 5MeV using stronger neodymium magnets. An extended model of the spectrometer increases the measured energy range up to 21MeV or 35MeV using ferrite or neodymium magnets, respectively. Position to energy calibration was obtained using the particle tracking simulations. The experimental results show the measured angularly resolved electron energy distribution functions from interaction with solid targets. The angular distribution of hot electron temperature, the total flux, and the maximum electron energy show a directional dependence. The measured values of these quantities increase toward the target normal. For a copper target, the average amount of measured electron flux is 1.36 × 1011, which corresponds to the total charge of about 21 nC.
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Affiliation(s)
- M Krupka
- Institute of Plasma Physics of the Czech Academy of Sciences, 18200 Prague 8, Czech Republic
| | - S Singh
- Institute of Plasma Physics of the Czech Academy of Sciences, 18200 Prague 8, Czech Republic
| | - T Pisarczyk
- Institute of Plasma Physics and Laser Microfusion, 01497 Warsaw, Poland
| | - J Dostal
- Institute of Plasma Physics of the Czech Academy of Sciences, 18200 Prague 8, Czech Republic
| | - M Kalal
- Institute of Plasma Physics of the Czech Academy of Sciences, 18200 Prague 8, Czech Republic
| | - J Krasa
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague 8, Czech Republic
| | - R Dudzak
- Institute of Plasma Physics of the Czech Academy of Sciences, 18200 Prague 8, Czech Republic
| | - T Burian
- Institute of Plasma Physics of the Czech Academy of Sciences, 18200 Prague 8, Czech Republic
| | - S Jelinek
- Institute of Plasma Physics of the Czech Academy of Sciences, 18200 Prague 8, Czech Republic
| | - T Chodukowski
- Institute of Plasma Physics and Laser Microfusion, 01497 Warsaw, Poland
| | - Z Rusiniak
- Institute of Plasma Physics and Laser Microfusion, 01497 Warsaw, Poland
| | - M Krus
- Institute of Plasma Physics of the Czech Academy of Sciences, 18200 Prague 8, Czech Republic
| | - L Juha
- Institute of Plasma Physics of the Czech Academy of Sciences, 18200 Prague 8, Czech Republic
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Yabuuchi T, Kon A, Inubushi Y, Togahi T, Sueda K, Itoga T, Nakajima K, Habara H, Kodama R, Tomizawa H, Yabashi M. An experimental platform using high-power, high-intensity optical lasers with the hard X-ray free-electron laser at SACLA. JOURNAL OF SYNCHROTRON RADIATION 2019; 26:585-594. [PMID: 30855271 PMCID: PMC6412175 DOI: 10.1107/s1600577519000882] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 01/17/2019] [Indexed: 05/25/2023]
Abstract
An experimental platform using X-ray free-electron laser (XFEL) pulses with high-intensity optical laser pulses is open for early users' experiments at the SACLA XFEL facility after completion of the commissioning. The combination of the hard XFEL and the high-intensity laser provides capabilities to open new frontiers of laser-based high-energy-density science. During the commissioning phase, characterization of the XFEL and the laser at the platform has been carried out for the combinative utilization as well as the development of instruments and basic diagnostics for user experiments. An overview of the commissioning and the current capabilities of the experimental platform is presented.
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Affiliation(s)
| | - Akira Kon
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Yuichi Inubushi
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Tadashi Togahi
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Keiichi Sueda
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Toshiro Itoga
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Kyo Nakajima
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
| | - Hideaki Habara
- Graduate School of Engineering, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Ryosuke Kodama
- Graduate School of Engineering, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Hiromitsu Tomizawa
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
| | - Makina Yabashi
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan
- Japan Synchrotoron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo 679-5198, Japan
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Kurz T, Couperus JP, Krämer JM, Ding H, Kuschel S, Köhler A, Zarini O, Hollatz D, Schinkel D, D'Arcy R, Schwinkendorf JP, Osterhoff J, Irman A, Schramm U, Karsch S. Calibration and cross-laboratory implementation of scintillating screens for electron bunch charge determination. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:093303. [PMID: 30278695 DOI: 10.1063/1.5041755] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
We revise the calibration of scintillating screens commonly used to detect relativistic electron beams with low average current, e.g., from laser-plasma accelerators, based on new and expanded measurements that include higher charge density and different types of screens than previous work [Buck et al., Rev. Sci. Instrum. 81, 033301 (2010)]. Electron peak charge densities up to 10 nC/mm2 were provided by focused picosecond-long electron beams delivered by the Electron Linac for beams with high Brilliance and low Emittance (ELBE) at the Helmholtz-Zentrum Dresden-Rossendorf. At low charge densities, a linear scintillation response was found, followed by the onset of saturation in the range of nC/mm2. The absolute calibration factor (photons/sr/pC) in this linear regime was measured to be almost a factor of 2 lower than that reported by Buck et al. retrospectively implying a higher charge in the charge measurements performed with the former calibration. A good agreement was found with the results provided by Glinec et al. [Rev. Sci. Instrum. 77, 103301 (2006)]. Furthermore long-term irradiation tests with an integrated dose of approximately 50 nC/mm2 indicate a significant decrease of the scintillation efficiency over time. Finally, in order to enable the transfer of the absolute calibration between laboratories, a new constant reference light source has been developed.
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Affiliation(s)
- Thomas Kurz
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | | | - Jakob Matthias Krämer
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Hao Ding
- Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany
| | | | - Alexander Köhler
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Omid Zarini
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | | | - David Schinkel
- Helmholtz-Institut Jena, Fröbelstieg 3, 07743 Jena, Germany
| | - Richard D'Arcy
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | | | - Jens Osterhoff
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Arie Irman
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Ulrich Schramm
- Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Stefan Karsch
- Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany
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Sakaki H, Kanasaki M, Fukuda Y, Nishiuchi M, Hori T, Yogo A, Jinno S, Niita K. Development of a single-shot-imaging thin film for an online Thomson parabola spectrometer. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2013; 84:013301. [PMID: 23387636 DOI: 10.1063/1.4773546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A single-shot-imaging thin scintillator film was developed for an online Thomson parabola (TP) spectrometer and the first analysis of laser accelerated ions, using the online TP spectrometer, was demonstrated at the JAEA-Kansai Advanced Relativistic Engineering Laser System (J-KAREN). An energy spectrum of ~4.0 MeV protons is obtained using only this imaging film without the need of a microchannel plate that is typically utilized in online ion analyses. A general-purpose Monte Carlo particle and heavy ion-transport code system, which consists of various quantum dynamics models, was used for the prediction of the luminescent properties of the scintillator. The simulation can reasonably predict not only the ion trajectories detected by the spectrometer, but also luminescence properties.
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Affiliation(s)
- H Sakaki
- Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan.
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Buck A, Zeil K, Popp A, Schmid K, Jochmann A, Kraft SD, Hidding B, Kudyakov T, Sears CMS, Veisz L, Karsch S, Pawelke J, Sauerbrey R, Cowan T, Krausz F, Schramm U. Absolute charge calibration of scintillating screens for relativistic electron detection. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2010; 81:033301. [PMID: 20370164 DOI: 10.1063/1.3310275] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We report on new charge calibrations and linearity tests with high-dynamic range for eight different scintillating screens typically used for the detection of relativistic electrons from laser-plasma based acceleration schemes. The absolute charge calibration was done with picosecond electron bunches at the ELBE linear accelerator in Dresden. The lower detection limit in our setup for the most sensitive scintillating screen (KODAK Biomax MS) was 10 fC/mm(2). The screens showed a linear photon-to-charge dependency over several orders of magnitude. An onset of saturation effects starting around 10-100 pC/mm(2) was found for some of the screens. Additionally, a constant light source was employed as a luminosity reference to simplify the transfer of a one-time absolute calibration to different experimental setups.
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Affiliation(s)
- A Buck
- Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany.
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