便携式伽玛射线剂量(率)仪校准方法及应用的研究  

Research on Calibration Method and Application of Portable Gamma Ray Dosimeter

作　　者：杨柳 YANG Liu(Dalian Applied Technology Research Institute of Nuclear Industry,Dalian,Liaoning Province,116031 China)

机构地区：[1]核工业大连应用技术研究所,辽宁大连116031

出　　处：《科技创新导报》2022年第29期17-20,共4页Science and Technology Innovation Herald

摘　　要：当下,关于伽玛射线剂量(率)仪的检定存在诸多不足,体现在周期、距离、效率等方面。为寻求改善,提出基于小尺度参考辐射并借助样本仪表的机器预测方法,目的是使得遂行校准具备便携式和可移动式。首先,论证基于小尺度参考辐射开展仪表校准的可行性,提出相应的实施框架和流程;其次,进行实物设计和研制;最后是实证检验。结果表明,虽然新方式尚未达到最优效果,但仍能实现测量标准不确定度不大于5%。随着进一步的改进,势必可作为苛刻条件下进行伽玛射线仪表校准的先行选择。At present,there are many deficiencies in the verification of gamma ray dose(rate)instrument,which are reflected in the aspects of cycle,distance,efficiency and so on.In order to seek improvement,a machine predic‐tion method based on small-scale reference radiation and sample instrument is proposed in order to make the cali‐bration portable and mobile.Firstly,the feasibility of instrument calibration based on small-scale reference radiation is demonstrated,and the corresponding implementation framework and process are put forward.Secondly,carry out physical design and development.The last is empirical test.The results show that although the new method has not achieved the optimal effect,it can still achieve the measurement standard uncertainty of no more than 5%.With further improvement,it is bound to be the first choice for gamma ray instrument calibration under harsh conditions.

关 键 词：伽玛空气比释动能 小尺度参考辐射 校准因子 机器学习 

分 类 号：P11[天文地球—天文学]