101重水研究堆安全关闭过渡期放射性源项调查

针对我国第1座研究性反应堆（101重水研究堆）安全关闭过渡期的放射性源项调查，采用对可达部位取样分析与理论计算相结合的方法，给出了堆本体主要部件的中子活化源项。采用现场测量和对管道、设备内壁取样的方法获取了回路系统污染源项。另外，对反应堆厂房构筑物地面和墙面的污染水平、乏燃料保存水池和废树脂等进行了较为全面的现场测量和取样分析。通过源项调查，初步掌握了101重水研究堆退役的主要放射性源项的特点和存留量。

Radiological Characterization Survey During Transition Phase of Safe Shutdown of 101 HWRR

In terms of the radiological characterization survey in transition phase for the 101 Heavy Water Research Reactor(HWRR),the first research reactor of China,the radiological inventory of the structural components of reactor body was obtained by applying the calculation method combined with the sampling from the reactor structure material activated by neutron.The radiological inventory of the radio-contaminated surface of fluid system and reactor building was obtained by using radioactive measurement and surface sampling,scraping and smear.According to survey results,the information on the radiological inventory and the main radiological characterization of 101 HWRR were obtained.