Study on hydrogen isotope behavior in metal re-deposition layer in a fusion reactor
| Project/Area Number |
21760691
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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 |
Nuclear fusion studies
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| Research Institution | Kyushu University |
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Principal Investigator |
KATAYAMA Kazunari Kyushu University, 大学院・総合理工学研究院, 助教 (90380708)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | プラズマ・壁相互作用 / 再堆積 / トリチウム / スパッタリング |
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| Research Abstract |
In the development of a fusion reactor expected as a next generation high density energy source, the understanding of fuel tritium behavior is an indispensable problem. In the present study, the sorption/desorption characteristics evaluation of fuel hydrogen isotopes in the metal re-deposition layer formed by erosion of the inner wall of the plasma confinement vessel were performed. It was found that not a small amount of hydrogen was trapped in the metal deposition layers grown under hydrogen plasma irradiation. The amount of hydrogen greatly varied depending on the deposition condition. It was revealed that the majority of hydrogen retained can be recovered by heating to 600℃ or more.
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Report
(3 results)
Research Products
(22 results)
