摘要
国内核电厂M310机型的一回路冷却剂放射性监测,采用在线总放射性测量和取样实验室测量两步结合的常规方法,在线测量数据易受环境本底影响,取样分析无法获取实时数据。通过对液体取样回路的设计和探测设备选型,将高纯锗谱仪(HPGe)引入一回路冷却剂在线测量成为可能,使得常规放射性液体测量方法由两步变为一步,缩短了对燃料元件破损、相关设备失效(如一回路过滤器)的分析判断时间,减轻了工作人员由现场取样带来的集体剂量负担。
The radiation monitoring of radioactive liquid in the primary circuit of M310 nuclear power plant in China has been usually carried out in two steps: online monitoring of total radiation and sampling followed by laboratory measurement. Usually the on-line monitoring data is easily influenced by environment radiation background, and the real-time data could not be obtained by sampling and analyzing. Through the design of the liquid sampling loop and choice of the monitoring equipment, it's a feasible method to use high-purity germanium(HPGe) for the on-line monitoring of radioactive liquid in the primary circuit, which changes the traditional measuring method from two steps to one step. The system reduces the time of analysis and estimation for failures of fuel element and related equipment, and mitigates the collective effective dose received from site sampling.
出处
《中国核电》
2014年第2期109-112,共4页
China Nuclear Power
