摘要
介绍了诊断用X线机和治疗用X射线装置的基本结构和原理;综合比较了国内辐射监测工作中几种常用X-γ辐射测量仪的性能;给出两种常用类型探测器在脉冲场中的测量结果;列举了FH40G+FHZ672E-10型便携式X-γ剂量率仪在医院射线装置周围环境辐射监测中的应用。根据实际测量结果,推断使用适宜于测量稳定天然辐射场的仪器进行脉冲瞬变场的测量,很可能导致测量数据偏低,造成个人剂量被低估。因此,实际监测过程,在强化以剂量监测为主的基础上,应当充分考虑测量仪器的响应时间、选型匹配等因素,以保证所得数据的合理性与可靠性。
It introduced the basic structure and principle of the diagnostic X-ray machine and the X ray device for treating; A comprehensive comparison of the performance of several common X-γ radiation measuring instrument which usually used for the radiation monitoring work in the domestic; The measurement results of two common types of detectors in the pulsed field are given;Examples of application of FH40G＋FHZ672E-10 portable X-γ dose rate instrument in medical exposure monitoring. According to the test results, the instrument which is used for measuring stability of natural radiation field measures pulse transient field is likely to lead to the measurement data is low and Individual dose undervalued. Therefore, In order to ensure the rationality and reliability of data, the actual monitoring must base on strengthening the dose monitoring and also should consider factors such as response time, selection and matching of measuring instruments.
出处
《能源环境保护》
2016年第3期57-59,53,56,40,22,共7页
Energy Environmental Protection
