辐射检验场最佳使用环境的实验确定

辐射防护通讯 ›› 2019, Vol. 39 ›› Issue (3): 26-32.

辐射检验场最佳使用环境的实验确定

张华, 林炜伟, 徐润龙, 黄正轩

广东省环境辐射监测中心, 广东阳江, 529500

收稿日期:2018-12-18 出版日期:2019-06-20 发布日期:2020-07-21
作者简介:张华(1981— ),女, 2005年毕业于山东大学信息学院光信息科学与技术专业,学士; 工程师。

Experimental Determination of the Optimum Operating Environment for Radiation Testing Field

Zhang Hua, LinWeiwei, Xu Runlong, Huang Zhengxuan

Guangdong Environment Radiation Monitoring Centre, Yangjiang, Guangdong, 525900

Received:2018-12-18 Online:2019-06-20 Published:2020-07-21

摘要/Abstract

摘要： 介绍了广东省环境辐射监测中心粤西分部辐射检验场的设计建设方案。采用RSS131型高压电离室作为传递仪器,在不同测量条件下,检验6150AD型和FH40G型便携式辐射监测仪的刻度系数及宇宙射线响应。检验结果表明:辐射检验场γ辐射剂量率最大值小于500 nGy/h时,较适合直线拟合计算宇宙射线响应值;γ辐射剂量率最大值大于500 nGy/h时,较适合直线拟合计算刻度系数。

关键词: 辐射检验场, 高压电离室, 宇宙射线响应, 刻度系数

Abstract: The design and construction plan of a radiation testing field in west Guangdong is introduced. A RSS131 high-pressure ionization chamber is used as the transfer instrument to test the calibration coefficient and cosmic ray response of portable radiation monitors, 6150AD and FH40G, under different measurement conditions. The results show that when the maximum gamma dose rate in the field is less than 500 nGy/h, it is more suitable for linear fitting to calculate the cosmic rays response. When it is greater than 500 nGy/h, the calibration coefficient is more suitable to be calculated via linear fitting.

Key words: Radiation testing field, High pressure ionization chamber, Cosmic ray response, Calibration coefficient

中图分类号:

X837

张华, 林炜伟, 徐润龙, 黄正轩. 辐射检验场最佳使用环境的实验确定[J]. 辐射防护通讯, 2019, 39(3): 26-32.

Zhang Hua, LinWeiwei, Xu Runlong, Huang Zhengxuan. Experimental Determination of the Optimum Operating Environment for Radiation Testing Field[J]. RADIATION PROTECTION BULLETIN, 2019, 39(3): 26-32.