装载C12137-01 CsI(Tl)探测器的KURAMA-II获取自然本底辐射方程参数的确定

Q4 Engineering

Transactions of the Atomic Energy Society of Japan Pub Date : 2021-01-01 DOI:10.3327/TAESJ.J20.007

M. Andoh, N. Matsuda, Kimiaki Saito

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引用次数: 1

摘要

我们在福岛第一核电站事故影响较小的11个测量点测量计数率和空气剂量率，并利用装载高灵敏度CsI (Tl)探测器C12137 - 01的KURAMA - II获得背景方程参数。结果表明，与标准CsI (Tl)探测器C12137相比，装载C12137 - 01的KURAMA - II在本底测量时的灵敏度提高了10倍以上。1400 ~ 2000 keV能量范围的背景方程为y(µSv / h)= 0.062 x (cps)。我们使用装载C12137 - 01的KURAMA - II评估了71个城市的本底空气剂量率，并将其与先前使用装载C12137的KURAMA - II的研究结果进行了比较。本研究评估的本底空气剂量率几乎与以前的研究相同。我们证实本研究评价的背景方程适用于装载C12137 - 01的KURAMA - II。

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Determination of Parameters for an Equation to Obtain Natural Background Radiation Using KURAMA-II Loaded with C12137-01 CsI(Tl) Detector

We measured count rates and air dose rates at 11 measurement points little affected by the inﬂu ence of the Fukushima Dai-ichi nuclear power plant accident to obtain parameters for a background equation applying KURAMA - II loaded with the high sensitivity CsI （ Tl ） detector, C12137 - 01. It was found that the sensitivity of KURAMA - II loaded with C12137 - 01 was about 10 times or more for background measurement, compared with KURAMA - II loaded with the standard CsI （ Tl ） detector, C12137. The background equation for the energy range of 1400 - 2000 keV was determined to be y （ µSv / h ）＝ 0.062 x （ cps ） . We evaluated background air dose rates using KURAMA - II loaded with C12137 - 01 for 71 municipalities and compared them with the results of a previous study of using KURAMA - II loaded with C12137. Evaluated background air dose rates in this study were almost equal to those in the previous study. We conﬁrmed that the background equation evaluated in this study was applicable for KURAMA - II loaded with C12137 - 01.

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来源期刊

Transactions of the Atomic Energy Society of Japan Energy-Nuclear Energy and Engineering

CiteScore

0.50

自引率

0.00%

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