| Budget Amount *help |
¥15,340,000 (Direct Cost: ¥11,800,000、Indirect Cost: ¥3,540,000)
Fiscal Year 2013: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥10,530,000 (Direct Cost: ¥8,100,000、Indirect Cost: ¥2,430,000)
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| Research Abstract |
A new measurement method for Sr/Y-90 radioactivity was developed. Sr/Y-90 was one of the concerned radionuclide for radiation protection after Fukushima Daiichi Nuclear Power Plant. The method can be applied for rapid measurement by general personnel without chemical treatment. An experimental result for demonstration verified validity of the method by comparison with a known value. For practical application, technical issues which should be resolved were pointed out from the experiment. A beta ray detector which had a higher counting efficiency than the validity experiment was proposed. Furthermore, a simulation which treated simultaneous beta and gamma ray emission along with nuclear data was built to design a next measurement instrument.
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