2013 Fiscal Year Final Research Report
Absolute radioactivity measurement of radioactive strontium without chemical treatment
| Project/Area Number |
24686106
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Nuclear engineering
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
UNNO YASUHIRO 独立行政法人産業技術総合研究所, 計測標準研究部門, 研究員 (90462837)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 原子力計測 / 放射線計測 / 放射能測定 / 放射性ストロンチウム / 放射性セシウム / ベータ線検出器 / ガンマ線検出器 / シミュレーション |
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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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