| Budget Amount *help |
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2010: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2009: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
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| Research Abstract |
It is necessary to clarify the influence of the nuclear transmutation helium on the grain boundary embrittlement of the materials from the viewpoint of utilization of the high-burnup nuclear fuels and the viewpoint of the plant life management of the power station of safer operation. A laser shock spallation method was developed, by research activity concerning especially reproducibility, the detection limit and accuracy of reduction of grain boundary strength were clarified, and the feasibility to direct measurement of helium grain boundary embrittlement was shown.
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