一排风中心放射性惰性气体异常排放的监测与分析
刘玉柱，李航，徐旭涛，张进富，王仲文
（中国原子能科学研究院，北京 102413）
摘要： 介绍了对一排风中心放射性惰性气体异常排放的排查和分析过程。通过排查确定排放气体中的放射性惰性气
体主要是由131I 核素分装生产线排放的¹³³Xe，^131mXe，^133mXe 等放射性核素。改进生产工艺后惰性气体的异常排放事件再未
发生，估算的年排放量远低于该排风中心环境影响评价中的放射性惰性气体年排放量限值。
关键词： 排风中心；放射性惰性气体；异常排放
中图分类号： X837     文献标识码： A     文章编号： 2095-0802-(2021)07-0052-04
Monitoring and Analysis of Abnormal Emission of Radioactive Noble Gas in an Exhaust Center
LIU Yuzhu, LI Hang, XU Xutao, ZHANG Jinfu, WANG Zhongwen
(China Institute of Atomic Energy, Beijing 102413, China)
Abstract: This paper introduced the investigation and analysis process of the abnormal emission of radioactive noble gas in an
exhaust center. Through investigation, it was determined that the radioactive noble gas in the exhaust gas was mainly the ¹³³Xe, ^131mXe and ^133mXe radionuclides discharged from the 131I nuclide sub-packaging production line. After the production process was
improved, the abnormal emission of noble gas did not occur again, the estimated annual emissions were far below the annual emission
limit of radioactive noble gas in the environmental impact assessment of the exhaust center.

Key words: exhaust center; radioactive noble gas; abnormal emission