| 海洋放射性在线监测装置研制及效率校准 |
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| 引用本文： | 刘东彦,李强,张颖颖,张颖,王昭玉.海洋放射性在线监测装置研制及效率校准[J].舰船科学技术,2016(12):167-169. |
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| 作者姓名： | 刘东彦 李强 张颖颖 张颖 王昭玉 |
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| 作者单位： | 1. 山东省科学院海洋仪器仪表研究所,山东青岛,266001;2. 中国辐射防护研究院,山西太原,030000 |
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| 基金项目： | 国家自然科学基金资助项目(41606111)；山东省科技发展计划资助项目(2015GSF115001)；山东省优秀中青年科学家科研奖励基金资助(BS2014HZ015) |
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| 摘 要： | 日本福岛核电站爆炸事故发生以来，海洋放射性监测比以往更加受到国内外海洋监测领域和国家有关部门的关注。本文研制了一套基于NaI（Tl）探测器的海洋放射性在线监测装置，并采用蒙特卡罗模拟和实验验证相结合的方式，对其效率校准方法进行研究。结果表明，蒙特卡罗模拟获得的探测器针对40K（1462 keV）的探测效率是1.73×10–4 cps/（Bq*m–3），与通过现场实验测量计算得到的值具有较好的符合性。
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| 关 键 词： | GEANT4 蒙特卡罗模拟 探测效率曲线 海洋效率刻度 |
Development and efficiency calibration for marine radioactive online monitoring device |
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| Abstract: | Since Japan's fukushima nuclear plant explosion, marine radioactivity monitoring have attracted more atten-tion of both Marine monitoring field at home and abroad and the relevant state departments than ever. A study of marine effi-ciency calibration has been done for the on-line marine radioactivity monitor. The efficiency calibration by Monte Carlo sim-ulation was validated with experiment in a big water tank. The detection efficiency by Monte Carlo simulation with 40K (1 462 keV) is 1.73 × 10–4 cps/(Bq*m–3), and the results seems to be in good agreement with the simulated one. |
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| Keywords: | GEANT4 MonteCarlosimulation efficiencycurve marinecalibration |
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