| Project/Area Number |
21740404
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Plasma science
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
NAKAMURA Tatsufumi Japan Atomic Energy Agency, 量子ビーム応用研究部門, 研究副主幹 (40318796)
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| Project Period (FY) |
2009 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | レーザープラズマ相互作用 / 相対論プラズマ / レーザーイオン加速 / イオン加速 / 磁気渦 / 負イオン / 粒子シミュレーション / 高強度レーザー |
|---|
| Research Abstract |
Irradiations of intense laser pulses on gas targets generate high energy charged particles, X-and gamma-rays, and negatively charged ions are also observed in recent experiments. In this study, we proposed Coulomb implosion mechanism which explains the acceleration mechanism of negative ions in laser-plasmas. We also proposed magnetic vortex acceleration, which is an efficient acceleration mechanism of positive ions from gas density plasmas. This mechanism enhances ion energy roughly ten-folds, which could contribute to development of compact laser-drive ion source.
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