2017 Fiscal Year Final Research Report
Investigation of a synergetic ion acceleration process in cluster media at a relativistic laser intensity regime
| Project/Area Number |
26247100
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plasma science
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| Research Institution | National Institutes for Quantum and Radiological Science and Technology (2016-2017)
Japan Atomic Energy Agency (2014-2015) |
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Principal Investigator |
Fukuda Yuji 国立研究開発法人量子科学技術研究開発機構, 関西光科学研究所 光量子科学研究部, 上席研究員(定常) (30311327)
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| Co-Investigator(Kenkyū-buntansha) |
榊 泰直 国立研究開発法人量子科学技術研究開発機構, 関西光科学研究所 光量子科学研究部, 上席研究員(定常) (00354746)
神野 智史 東京大学, 大学院工学系研究科(工学部), 助教 (80596924)
金崎 真聡 神戸大学, 海事科学研究科, 助教 (90767336)
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| Co-Investigator(Renkei-kenkyūsha) |
KISHIMOTO Yasuaki 京都大学, エネルギー科学研究科, 教授 (10344441)
YAMAUCHI Tomoya 神戸大学, 海事科学研究科, 教授 (40211619)
MORISHIMA Kunihiro 名古屋大学, 高等研究院, 特任助教 (30377915)
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| Research Collaborator |
MATSUI Ryutaro
TANAKA Hirotaka
OKAMOTO Yuki
IWATA Natsumi
UNO Masataka
TAKANO Yuta
MORII Kosaku
ASAI Takafumi
SAKAMOTO Keita
SHIMIZU Kazuki
KODAIRA Satoshi
ODA Keiji
Lorenzo Romagnani
Francois Sylla
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Keywords | 高強度レーザー / レーザー加速 / クーロン爆発 / クラスター / 相対論プラズマ / 無衝突衝撃波 / 相対論的透明化 / Mie散乱 |
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| Outline of Final Research Achievements |
The project aims, by utilizing the advanced ion acceleration method with the use of micron-size cluster targets developed by PI and co-workers, to find a new way to generate quasi-monoenergetic ion beams exceeding 100 MeV, which has a potential to be widely applicable to medical and industrial purposes, but no one has accomplished before. In numerical studies using the 3D-PIC code, we have discovered a new approach for accelerating a quasimonoenergetic proton bunch up to 290 MeV via a hemispherically converging collisionless shock created via laser-cluster interactions at the relativistically induced transparency regime. We have conducted ion acceleration experiments with the PW class J-KAREN-P laser at QST-KPSI. We found that only protons having the energies exceeding 10 MeV were for the first time accelerated in the forward direction with a high repetition rate.
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| Free Research Field |
レーザープラズマ科学
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