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Kumar HS, Takahashi M, Kuramitsu Y, Ohnishi N. Integrating sheath and radiation-based acceleration using scaling coefficients for tailoring radiation dominant hybrid acceleration. Sci Rep 2024; 14:22531. [PMID: 39341913 PMCID: PMC11438887 DOI: 10.1038/s41598-024-72623-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 09/09/2024] [Indexed: 10/01/2024] Open
Abstract
An optimal target condition for generating GeV-energy ions with linearly polarized laser pulse is revealed by a hybrid acceleration theory based on the fractional contributions of the target normal sheath acceleration (TNSA) and the radiation pressure acceleration (RPA) mechanisms in the RPA-dominant regime. The theory is established with two scaling coefficients, which scale the TNSA and RPA velocities, and are sophisticated through two-dimensional particle-in-cell simulations where GeV-energy ions are obtained by RPA-dominant hybrid acceleration. By imposing limits on the scaling coefficients, three separate acceleration regions are obtained including a RPA-dominant acceleration region, which is optimal to generate GeV-energy ions. The past experiment/simulation results are in good agreement with the acceleration regions obtained. This RPA-dominant region is narrower than previously reported, and this region becomes even narrower with increasing material density.
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Affiliation(s)
- Harihara Sudhan Kumar
- Department of Aerospace Engineering, Tohoku University, 6-6-01 Aramakiazaaoba, Aoba-ku, Sendai, 980-8579, Japan
| | - Masayuki Takahashi
- Department of Aerospace Engineering, Tohoku University, 6-6-01 Aramakiazaaoba, Aoba-ku, Sendai, 980-8579, Japan
| | - Yasuhiro Kuramitsu
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Naofumi Ohnishi
- Department of Aerospace Engineering, Tohoku University, 6-6-01 Aramakiazaaoba, Aoba-ku, Sendai, 980-8579, Japan.
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2
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Taguchi T, Minami T, Hihara T, Nikaido F, Asai T, Sakai K, Abe Y, Yogo A, Arikawa Y, Kohri H, Tokiyasu AO, Chu CM, Woon WY, Kodaira S, Kanasaki M, Fukuda Y, Kuramitsu Y. Automation of etch pit analyses on solid-state nuclear track detectors with machine learning for laser-driven ion acceleration. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2024; 95:033301. [PMID: 38436451 DOI: 10.1063/5.0172202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 02/01/2024] [Indexed: 03/05/2024]
Abstract
Solid-state nuclear track detectors (SSNTDs) are often used as ion detectors in laser-driven ion acceleration experiments and are considered to be the most reliable ion diagnostics since they are sensitive only to ions and measure ions one by one. However, ion pit analyses require tremendous time and effort in chemical etching, microscope scanning, and ion pit identification by eyes. From a laser-driven ion acceleration experiment, there are typically millions of microscopic images, and it is practically impossible to analyze all of them by hand. This research aims to improve the efficiency and automation of SSNTD analyses for laser-driven ion acceleration. We use two sets of data obtained from calibration experiments with a conventional accelerator where ions with known nuclides and energies are generated and from actual laser experiments using SSNTDs. After chemical etching and scanning the SSNTDs with an optical microscope, we use machine learning to distinguish the ion etch pits from noises. From the results of the calibration experiment, we confirm highly accurate etch-pit detection with machine learning. We are also able to detect etch pits with machine learning from the laser-driven ion acceleration experiment, which is much noisier than calibration experiments. By using machine learning, we successfully identify ion etch pits ∼105 from more than 10 000 microscopic images with a precision of ≳95%. A million microscopic images can be examined with a recent entry-level computer within a day with high precision. Machine learning tremendously reduces the time consumption on ion etch pit analyses detected on SSNTDs.
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Affiliation(s)
- T Taguchi
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Minami
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Kansai Institute for Photon Science (KPSI), National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - T Hihara
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - F Nikaido
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Asai
- Kansai Institute for Photon Science (KPSI), National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
- Graduate School of Maritime Sciences, Kobe University, Kobe 658-0022, Japan
| | - K Sakai
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- National Institute for Fusion Science, 322-6 Oroshicho, Toki, Gifu, 509-5292, Japan
| | - Y Abe
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - A Yogo
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Arikawa
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - H Kohri
- Research Center for Nuclear Physics, Osaka University, 10-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - A O Tokiyasu
- Research Center for Electron Photon Science, Tohoku University, 1-2-1 Mikamine, Taihaku-ku, Sendai, Miyagi 982-0826, Japan
| | - C M Chu
- Department of Physics, National Central University, No. 300, Jhongda Rd., Jhongli, Taoyuan 320, Taiwan
| | - W Y Woon
- Department of Physics, National Central University, No. 300, Jhongda Rd., Jhongli, Taoyuan 320, Taiwan
| | - S Kodaira
- Institute for Radiological Science (NIRS), National Institutes for Quantum Science and Technology (QST), Inage, Chiba 263-8555, Japan
| | - M Kanasaki
- Graduate School of Maritime Sciences, Kobe University, Kobe 658-0022, Japan
| | - Y Fukuda
- Kansai Institute for Photon Science (KPSI), National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - Y Kuramitsu
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
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3
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Liu M, Wang WM, Li YT. Steady regime of radiation pressure acceleration with foil thickness adjustable within micrometers under a 10-100 PW laser. Phys Rev E 2024; 109:015208. [PMID: 38366504 DOI: 10.1103/physreve.109.015208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 12/18/2023] [Indexed: 02/18/2024]
Abstract
Quasimonoenergetic GeV-scale protons are predicted to be efficiently generated via radiation pressure acceleration (RPA) when the foil thickness is matched with the laser intensity, e.g., L_{mat} of several nm to 100 nm for 10^{19}-10^{22}Wcm^{-2} available in laboratory. However, nonmonoenergetic protons with much lower energies than predicted were usually observed in RPA experiments because of too small foil thickness which cannot support insufficient laser contrast and foil surface roughness. Besides the technical problems, we here find that there is an upper-limit thickness L_{up} derived from the requirement that the laser energy should dominate over the ion source energy in the effective laser-proton interaction zone, and L_{up} is lower than L_{mat} with the intensity below 10^{22}Wcm^{-2}, which causes inefficient or unsteady RPA. As the intensity is enhanced to ≥10^{23}Wcm^{-2} provided by 10-100 PW laser facilities, L_{up} can significantly exceed L_{mat}, and therefore RPA becomes efficient. In this regime, L_{mat} acts as a lower-limit thickness for efficient RPA, so the matching thickness can be extended to a continuous range from L_{mat} to L_{up}; the range can reach micrometers, within which foil thickness is adjustable. This makes RPA steady and meanwhile the above technical problems can be overcome. Particle-in-cell simulation shows that multi-GeV quasimonoenergetic proton beams can be steadily generated and the fluctuation of the energy peaks and the energy conversation efficiency remains stable although the thickness is taken in a larger range with increasing intensity. This work predicts that near future RPA experiments with 10-100 PW facilities will enter a new regime with a large range of usable foil thicknesses that can be adjusted to the interaction conditions for steady acceleration.
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Affiliation(s)
- Meng Liu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
- Department of Mathematics and Physics, North China Electric Power University, Baoding, Hebei 071003, China
| | - Wei-Min Wang
- Department of Physics and Beijing Key Laboratory of Opto-electronic Functional Materials and Micro-nano Devices, Renmin University of China, Beijing 100872, China
- Key Laboratory of Quantum State Construction and Manipulation (Ministry of Education), Renmin University of China, Beijing 100872, China
| | - Yu-Tong Li
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, CAS, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
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4
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Schollmeier MS, Bekx JJ, Hartmann J, Schork E, Speicher M, Brodersen AF, Fazzini A, Fischer P, Gaul E, Gonzalez-Izquierdo B, Günther MM, Härle AK, Hollinger R, Kenney K, Park J, Rivas DE, Scutelnic V, Shpilman Z, Wang S, Rocca JJ, Korn G. Differentiating multi-MeV, multi-ion spectra with CR-39 solid-state nuclear track detectors. Sci Rep 2023; 13:18155. [PMID: 37875514 PMCID: PMC10598230 DOI: 10.1038/s41598-023-45208-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 10/17/2023] [Indexed: 10/26/2023] Open
Abstract
The development of high intensity petawatt lasers has created new possibilities for ion acceleration and nuclear fusion using solid targets. In such laser-matter interaction, multiple ion species are accelerated with broad spectra up to hundreds of MeV. To measure ion yields and for species identification, CR-39 solid-state nuclear track detectors are frequently used. However, these detectors are limited in their applicability for multi-ion spectra differentiation as standard image recognition algorithms can lead to a misinterpretation of data, there is no unique relation between track diameter and particle energy, and there are overlapping pit diameter relationships for multiple particle species. In this report, we address these issues by first developing an algorithm to overcome user bias during image processing. Second, we use calibration of the detector response for protons, carbon and helium ions (alpha particles) from 0.1 to above 10 MeV and measurements of statistical energy loss fluctuations in a forward-fitting procedure utilizing multiple, differently filtered CR-39, altogether enabling high-sensitivity, multi-species particle spectroscopy. To validate this capability, we show that inferred CR-39 spectra match Thomson parabola ion spectrometer data from the same experiment. Filtered CR-39 spectrometers were used to detect, within a background of ~ 2 × 1011 sr-1 J-1 protons and carbons, (1.3 ± 0.7) × 108 sr-1 J-1 alpha particles from laser-driven proton-boron fusion reactions.
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Affiliation(s)
- M S Schollmeier
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany.
| | - J J Bekx
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - J Hartmann
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - E Schork
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - M Speicher
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - A F Brodersen
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - A Fazzini
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - P Fischer
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - E Gaul
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | | | - M M Günther
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - A K Härle
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - R Hollinger
- Electrical and Computer Engineering Department, Colorado State University, Fort Collins, CO, 80523, USA
| | - K Kenney
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - J Park
- Electrical and Computer Engineering Department, Colorado State University, Fort Collins, CO, 80523, USA
| | - D E Rivas
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - V Scutelnic
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
| | - Z Shpilman
- Electrical and Computer Engineering Department, Colorado State University, Fort Collins, CO, 80523, USA
| | - S Wang
- Electrical and Computer Engineering Department, Colorado State University, Fort Collins, CO, 80523, USA
| | - J J Rocca
- Electrical and Computer Engineering Department, Colorado State University, Fort Collins, CO, 80523, USA
- Physics Department, Colorado State University, Fort Collins, CO, 80523, USA
| | - G Korn
- Marvel Fusion GmbH, Theresienhöhe 12, 80339, Munich, Germany
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5
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Minami T, Tokiyasu AO, Kohri H, Abe Y, Iwasaki K, Taguchi T, Oda K, Suzuki S, Asai T, Tanaka SJ, Isayama S, Kanasaki M, Kodaira S, Fukuda Y, Kuramitsu Y. Mass-resolved ion measurement by particle counting analysis for characterizing relativistic ion beams driven by lasers. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:113530. [PMID: 36461420 DOI: 10.1063/5.0101872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/09/2022] [Indexed: 06/17/2023]
Abstract
Particle counting analysis is a possible way to characterize GeV-scale, multi-species ions produced in laser-driven experiments. We present a multi-layered scintillation detector to differentiate multi-species ions of different masses and energies. The proposed detector concept offers potential advantages over conventional diagnostics in terms of (1) high sensitivity to GeV ions, (2) realtime analysis, and (3) the ability to differentiate ions with the same charge-to-mass ratio. A novel choice of multiple scintillators with different ion stopping powers results in a significant difference in energy deposition between the scintillators, allowing accurate particle identification in the GeV range. Here, we report a successful demonstration of particle identification for heavy ions, performed at the Heavy Ion Medical Accelerator in Chiba. In the experiment, the proposed detector setup showed the ability to differentiate particles with similar atomic numbers, such as C6+ and O8+ ions, and provided an excellent energy resolution of 0.41%-1.2% (including relativistic effect, 0.51%--1.6%).
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Affiliation(s)
- T Minami
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - A O Tokiyasu
- Research Center for Electron Photon Science, Tohoku University, Miyagi 982-0826, Japan
| | - H Kohri
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
| | - Y Abe
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - K Iwasaki
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - T Taguchi
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - K Oda
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - S Suzuki
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - T Asai
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum Science and Technology (QST), Kyoto 619-0215, Japan
| | - S J Tanaka
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - S Isayama
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - M Kanasaki
- Graduate School of Maritime Sciences, Kobe University, Hyogo 658-0022, Japan
| | - S Kodaira
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum Science and Technology (QST), Chiba 263-8555, Japan
| | - Y Fukuda
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum Science and Technology (QST), Kyoto 619-0215, Japan
| | - Y Kuramitsu
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
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6
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Jinno S, Kanasaki M, Asai T, Matsui R, Pirozhkov AS, Ogura K, Sagisaka A, Miyasaka Y, Nakanii N, Kando M, Kitagawa N, Morishima K, Kodaira S, Kishimoto Y, Yamauchi T, Uesaka M, Kiriyama H, Fukuda Y. Laser-driven multi-MeV high-purity proton acceleration via anisotropic ambipolar expansion of micron-scale hydrogen clusters. Sci Rep 2022; 12:16753. [PMID: 36224197 PMCID: PMC9556756 DOI: 10.1038/s41598-022-18710-x] [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: 03/14/2022] [Accepted: 08/18/2022] [Indexed: 11/09/2022] Open
Abstract
Multi-MeV high-purity proton acceleration by using a hydrogen cluster target irradiated with repetitive, relativistic intensity laser pulses has been demonstrated. Statistical analysis of hundreds of data sets highlights the existence of markedly high energy protons produced from the laser-irradiated clusters with micron-scale diameters. The spatial distribution of the accelerated protons is found to be anisotropic, where the higher energy protons are preferentially accelerated along the laser propagation direction due to the relativistic effect. These features are supported by three-dimensional (3D) particle-in-cell (PIC) simulations, which show that directional, higher energy protons are generated via the anisotropic ambipolar expansion of the micron-scale clusters. The number of protons accelerating along the laser propagation direction is found to be as high as 1.6 \documentclass[12pt]{minimal}
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\begin{document}$$\pm \,{1.9}$$\end{document}±1.9 MeV, indicating that laser-driven proton acceleration using the micron-scale hydrogen clusters is promising as a compact, repetitive, multi-MeV high-purity proton source for various applications.
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Affiliation(s)
- Satoshi Jinno
- Nuclear Professional School, School of Engineering, The University of Tokyo, 2-22 Shirakata Shirane, Tokai, Naka, Ibaraki, 319-1188, Japan.,Tono Geoscience Center, Japan Atomic Energy Agency (JAEA), 959-31, Jorinji, Izumi-cho, Toki, Gifu, 509-5102, Japan
| | - Masato Kanasaki
- Graduate School of Maritime Sciences, Kobe University, 5-1-1 Fukaeminamimachi, Higashinada, Kobe, Hyogo, 658-0022, Japan
| | - Takafumi Asai
- Graduate School of Maritime Sciences, Kobe University, 5-1-1 Fukaeminamimachi, Higashinada, Kobe, Hyogo, 658-0022, Japan
| | - Ryutaro Matsui
- Graduate School of Energy Science, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan.,Non-linear / Non-Equilibrium Plasma Science Research UNIT, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Alexander S Pirozhkov
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan
| | - Koichi Ogura
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan
| | - Akito Sagisaka
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan
| | - Yasuhiro Miyasaka
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan
| | - Nobuhiko Nakanii
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan
| | - Masaki Kando
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan
| | | | | | - Satoshi Kodaira
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum Science and Technology (QST), 4-9-1 Anagawa, Chiba, Chiba, 263-8555, Japan
| | - Yasuaki Kishimoto
- Graduate School of Energy Science, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan.,Non-linear / Non-Equilibrium Plasma Science Research UNIT, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan.,Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Tomoya Yamauchi
- Graduate School of Maritime Sciences, Kobe University, 5-1-1 Fukaeminamimachi, Higashinada, Kobe, Hyogo, 658-0022, Japan
| | - Mitsuru Uesaka
- Nuclear Professional School, School of Engineering, The University of Tokyo, 2-22 Shirakata Shirane, Tokai, Naka, Ibaraki, 319-1188, Japan
| | - Hiromitsu Kiriyama
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan
| | - Yuji Fukuda
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto, 619-0215, Japan.
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7
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Abe Y, Kohri H, Tokiyasu A, Minami T, Iwasaki K, Taguchi T, Asai T, Kanasaki M, Kodaira S, Fujioka S, Kuramitsu Y, Fukuda Y. A multi-stage scintillation counter for GeV-scale multi-species ion spectroscopy in laser-driven particle acceleration experiments. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:063502. [PMID: 35778001 DOI: 10.1063/5.0078817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Particle counting analysis (PCA) with a multi-stage scintillation detector shows a new perspective on angularly resolved spectral characterization of GeV-scale, multi-species ion beams produced by high-power lasers. The diagnosis provides a mass-dependent ion energy spectrum based on time-of-flight and pulse-height analysis of single particle events detected through repetitive experiments. With a novel arrangement of multiple scintillators with different ions stopping powers, PCA offers potential advantages over commonly used diagnostic instruments (CR-39, radiochromic films, Thomson parabola, etc.) in terms of coverage solid angle, detection efficiency for GeV-ions, and real-time analysis during the experiment. The basic detector unit was tested using 230-MeV proton beam from a synchrotron facility, where we demonstrated its potential ability to discriminate major ion species accelerated in laser-plasma experiments (i.e., protons, deuterons, carbon, and oxygen ions) with excellent energy and mass resolution. The proposed diagnostic concept would be essential for a better understanding of laser-driven particle acceleration, which paves the way toward all-optical compact accelerators for a range of applications.
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Affiliation(s)
- Y Abe
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - H Kohri
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
| | - A Tokiyasu
- Research Center for Electron Photon Science, Tohoku University, Miyagi 982-0826, Japan
| | - T Minami
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - K Iwasaki
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - T Taguchi
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - T Asai
- Graduate School of Maritime Sciences, Kobe University, Kobe 658-0022, Japan
| | - M Kanasaki
- Graduate School of Maritime Sciences, Kobe University, Kobe 658-0022, Japan
| | - S Kodaira
- National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), Chiba 263-8555, Japan
| | - S Fujioka
- Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan
| | - Y Kuramitsu
- Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
| | - Y Fukuda
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST), Kyoto 619-0215, Japan
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