| Project/Area Number |
21340061
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Hiroshima University |
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Principal Investigator |
OKAMOTO Hiromi 広島大学, 大学院・先端物質科学研究科, 教授 (40211809)
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| Co-Investigator(Kenkyū-buntansha) |
HIGAKI Hiroyuki 広島大学, 大学院・先端物質科学研究科, 准教授 (10334046)
ITO Kiyokazu 広島大学, 大学院・先端物質科学研究科, 助教 (70335719)
IKEGAMI Masanori 高エネルギー加速器研究機構, 加速器研究施設, 准教授 (20332116)
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| Co-Investigator(Renkei-kenkyūsha) |
OIDEK Atsunobu 高エネルギー加速器研究機構, 加速器研究施設, 教授 (50150008)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2009: ¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000)
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| Keywords | 加速器 / ビーム物理 / 荷電粒子ビーム / 非中性プラズマ / 空間電荷効果 / イオントラップ / ソレノイドトラップ |
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| Research Abstract |
We have experimentally studied the space-charge effects that might seriously affect the stability of high-quality hadron beams in next-generation particle accelerators. For this purpose, very compact and low-cost non-neutral plasma traps were developed which generate, in the laboratory frame, many-body systems physically equivalent to relativistic charged-particle beams. Employing this novel experimental method, we systematically explored nonlinear collective phenomena caused by interparticle Coulomb interactions and obtained useful quantitative information to improve the stability of high-quality beams.
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