为了能够监测核电站运行、核动力舰船环境、核应急救援等核污染区域的α，β，γ和中子放射性水平，设计一种低功耗便携式多功能核辐射探测系统，该研究主要由低功耗便携式辐射监测仪主机和与主机配套的多功能探测器组成。监测仪主机为内置电池供电，可同时处理3个探测器传来的信号。多功能便携式辐射监测仪探测器包括α/β/γ探测器，β/γ探测器，中子/γ探测器3种小型智能化探测器。实验结果表明：该系统对γ射线的测量相对误差为11.17%，对α粒子和β射线2π平均探测效率约分别为32.15%和31.9%，中子测量的相对误差为19.56%，性指标能满足船舰、军事、核应急等放射性探测应用。
In order to monitor the operation of nuclear power plants, nuclear ship environment, nuclear emergency rescue and other nuclear contaminated areas α，β，γ and neutron radioactivity level, a low-power portable multifunctional nuclear radiation detection system is designed in this study, which is mainly composed of a low-power portable radiation monitor host and a multifunctional detector matched with the host.The monitor host is powered by the built-in battery and can process the signals from three detectors at the same time. Multifunctional portable radiation monitor detector includes α/β/γ，β/γ， Neutrons/ γ three small intelligent detectors.The experimental results show that the instrument is suitable for γ The relative error of X-ray measurement is 11.17% α Particles and β The average detection efficiency of ray 2π is about 32.15% and 31.9% respectively, and the relative error of neutron measurement is 19.56%. The systematic index can meet the application of radioactive detection such as ship, military and nuclear emergency.
2022,44(15): 181-184 收稿日期：2021-11-19
DOI：10.3404/j.issn.1672-7649.2022.15.039
分类号：O571.54
作者简介：肖伟(1991-)，男，硕士，工程师，从事核辐射监测设备研发工作
参考文献：
[1] 吴治华, 齐卉荃. 原子核物理实验方法[M]. 北京: 原子能出版社, 1996: 296.
[2] 乔茹虹. β、X、γ射线电子个人剂量仪的设计与实现[D]. 武汉: 华中科技大学.
[3] 李元东. 便携式α/β表面污染仪探头改进设计及性能研究[D]. 成都: 成都理工大学, 2017.
[4] 吴德波. 便携式宽量程X-γ剂量率连续监测仪的研制[D]. 衡阳: 南华大学, 2008.
[5] 苏晓书, 肖德涛, 杨彬华. 基于MSP430的多探头核辐射剂量率仪研制[J]. 现代电子技术, 2011(5): 129–130
[6] 范磊, 左亮周, 詹佳硕, 等. 手持式低功耗多功能辐射监测仪设计[J]. 核电子学与探测技术,2020 40(3): 7.
[7] 温伟伟, 程金星, 吴友朋, 等. CLYC中子-γ复合测量仪设计[J]. 核电子学与探测技术,2021 41(1): 5.
