| Project/Area Number |
25400299
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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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 | Osaka University |
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Principal Investigator |
Itahashi Takahisa 大阪大学, 理学(系)研究科(研究院), 研究員 (20112071)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHISA Keiji 大阪大学, 核物理研究センター, 助教 (30263338)
SATO Akira 大阪大学, 理学研究科, 助教 (40362610)
坂本 英之 大阪大学, 理学(系)研究科(研究院), 助教 (70423126)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 正規ミューオニューム / フリクショナル冷却 / エミッタンス密度 / 高輝度粒子 / 水素ガスプラズマ / ミューオニューム / ECRプラズマ / ミューオニック原子 / 正負ミューオン / エキゾチック原子 / 摩擦冷却法 / ミューオンの低速化 / GEANT4 / 低速陽子ビーム / 最小レプトン結合系 / 低速正負ミューオン / 微細構造 / フリクショナルクーリング / 原子分子衝突現象 / 高エネルギーガンマ線 |
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| Outline of Final Research Achievements |
In order to apply the frictional cooling technique for obtaining slow positive and negative muon beams with an excellent emittance distribution the simulation program GEANT4 is implemented. Simulation geometry consists of 10 thin carbon absorber stacks(moderators) and 1 cm-gaps for electric potential.The results are compared with root-mean square energy width,angular straggling and emittance density. A little better distribution is obtained by applying the electric potential, but it is not sufficient for the final purpose, production of exotic atom, that is, true muonium. In addition, a bright proton accelerator (OCEANII) is constructed for Proof Of Principle experiment. The gas moderator will be developed.
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