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首页> 外文期刊>Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine >Monte Carlo simulation of a NaI(Tl) detector for in situ radioactivity measurements in the marine environment
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Monte Carlo simulation of a NaI(Tl) detector for in situ radioactivity measurements in the marine environment

机译：Monte Carlo模拟Nai（TL）检测器，用于在海洋环境中原位放射性测量

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摘要

To develop in situ NaI(Tl) detector for radioactivity measurement in the marine environment, the Monte Carlo N-Particle (MCNP) Transport Code was utilized to simulate the measurement of NaI(Tl) detector immersed in seawater, taking into account the material and geometry of the detector, and the interactions between the photons with the atoms of the seawater and the detector. The simulation results of the marine detection efficiency and distance were deduced and analyzed. In order to test their reliability, the field measurement was made at open sea and the experimental value of the marine detection efficiency was deduced and seems to be in good agreement with the simulated one. The minimum detectable activity for Cs-137 in the seawater of NaI(Tl) detector developed was determined mathematically at last. The simulation method and results in the paper can be used for the better design and quantitative calculation of in situ NAI(Tl) detector for radioactivity measurement in the marine environment, and also for some applications such as the installation on the marine monitoring platform and the quantitative analysis of radionuclides. (C) 2015 Elsevier Ltd. All rights reserved.
机译：为了在原位nai（TL）检测器中进行船舶环境中的放射性测量，利用蒙特卡罗n粒子（MCNP）传输代码来模拟浸入海水中的Nai（TL）检测器的测量，考虑到材料和检测器的几何形状，以及海水原子与探测器之间的光子之间的相互作用。推导和分析了海洋检测效率和距离的仿真结果。为了测试其可靠性，现场测量是在公海进行的，推导出海洋检测效率的实验价值，似乎与模拟的达成良好。在数学上终于确定了Nai（TL）探测器海水中CS-137的最小可检测活性。纸张中的仿真方法和结果可用于更好的设计和定量计算在海洋环境中的放射性测量中的原位nai（TL）检测器，以及用于诸如在海洋监测平台上的安装之类的应用放射性核素的定量分析。 （c）2015 Elsevier Ltd.保留所有权利。

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