| Project/Area Number |
16082201
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
SASAO Mamiko Tohoku University, 大学院・工学研究科, 教授 (00144171)
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| Co-Investigator(Kenkyū-buntansha) |
KANEKO Osamu 核融合科学研究所, 大型ヘリカル研究部, 教授 (00126848)
WADA Motoi 同志社大学, 工学部, 教授 (30201263)
北島 純男 東北大学, 大学院・工学研究科, 准教授 (30161475)
平野 洋一 産業技術総合研究所, エネルギー技術研究部門, 主任研究員 (80357863)
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| Co-Investigator(Renkei-kenkyūsha) |
HIRANO Ypuichi 産業技術総合研究所, エネルギー技術研究部門, 主任研究員 (80357863)
KITAJIMA Sumio 東北大学, 大学院・工学研究科, 准教授 (30161475)
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| Project Period (FY) |
2004 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥255,200,000 (Direct Cost: ¥255,200,000)
Fiscal Year 2009: ¥10,200,000 (Direct Cost: ¥10,200,000)
Fiscal Year 2008: ¥24,000,000 (Direct Cost: ¥24,000,000)
Fiscal Year 2007: ¥26,300,000 (Direct Cost: ¥26,300,000)
Fiscal Year 2006: ¥35,200,000 (Direct Cost: ¥35,200,000)
Fiscal Year 2005: ¥109,000,000 (Direct Cost: ¥109,000,000)
Fiscal Year 2004: ¥50,500,000 (Direct Cost: ¥50,500,000)
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| Keywords | 中性粒子ビーム / イオンビーム / 負イオンビーム / アルファ粒子計測 / 荷電変換 / 準安定状態 / 核融合 / プラズマ |
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| Research Abstract |
As a realistic and promising method to diagnose alpha particles produced in a DT self-sustaining burning plasma, a "beam probe charge exchange system" was designed applicable to the DT experiments on International Thermonuclear Experimental Reactor (ITER). This method can achieve the desired S/N level if the incident ground state He^0 beam is produced through an auto-detachment of an 1-2 MeV He^- beam of 10 mA. Considering the conversion efficiency from He^+ to He^-, a strong focusing He+ beam was designed and constracted. A beam current of more than 2 A was obtained at acceleration voltages of 20-25 kV with a beam radius about 2cm at the designed beam waist, where a conversion alkali-vapor cell would be located. For the He^0 production, a test stand device was built and a ground state He^0 beam was successfully generated through the "free flight method". In summary, the principle and the engineering feasibility of "beam probe charge exchange system" has been proved.
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