| 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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| 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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