Characteristics and verification of a car-borne survey system for dose rates in air: KURAMA-II
Characteristics and verification of a car-borne survey system for dose rates in air: KURAMA-II
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DOI：
10.1016/j.jenvrad.2014.02.028
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发表时间：
2015-01-01
影响因子：
2.3
通讯作者：
Saito, K.
中科院分区：
文献类型：
--
作者：
Tsuda, S.;Yoshida, T.;Saito, K.
京都大学研究堆研究所开发的车载测量系统KURAMA-II已用于福岛第一核电站事故后的空气剂量率测绘。 KURAMA-II由CsI(Tl)闪烁探测器、GPS装置和数据处理控制装置组成。 KURAMA-II监测的剂量率基于G(E)函数（频谱-剂量转换算子），即使能谱发生显着变化，它也可以根据测量的脉冲高度分布精确计算剂量率。对 KURAMA-II 的特性进行了研究，特别考虑了计算的 G(E) 函数的可靠性、剂量率依赖性、统计波动、角度依赖性和能量依赖性。结果表明，100 台 KURAMA-II 系统对于环境中剂量率的大规模监测具有可接受的质量。 (C) 2014 Elsevier Ltd. 保留所有权利。
The car-borne survey system KURAMA-II, developed by the Kyoto University Research Reactor Institute, has been used for air dose rate mapping after the Fukushima Dai-ichi Nuclear Power Plant accident. KURAMA-II consists of a CsI(Tl) scintillation detector, a GPS device, and a control device for data processing. The dose rates monitored by KURAMA-II are based on the G(E) function (spectrum-dose conversion operator), which can precisely calculate dose rates from measured pulse-height distribution even if the energy spectrum changes significantly. The characteristics of KURAMA-II have been investigated with particular consideration to the reliability of the calculated G(E) function, dose rate dependence, statistical fluctuation, angular dependence, and energy dependence. The results indicate that 100 units of KURAMA-II systems have acceptable quality for mass monitoring of dose rates in the environment. (C) 2014 Elsevier Ltd. All rights reserved.