反应堆舱包容失效的辐射监测判断方法

A Method for Judgment of Inclusion Failure of Reactor Compartment Based on Radiation Monitoring

堆舱包容失效是判断应急状态升级的重要技术条件,是应急决策的重要技术依据。本文提出了采用舱室辐射水平作为堆舱包容失效判定依据的方法,确定了用于判定包容失效的可监测量(131I核素活度浓度和舱室γ剂量率),建立了舱室辐射水平与堆舱泄漏率之间的传递关系,并给出判据量值的计算方法。

The inclusion failure of the reactor compartment is an important technical condition for judging the upgrade of emergency state and an important technical basis for emergency decision.In this paper,a method using compartment radiation level as the basis for judgment of the inclusion failure of reactor compartment is proposed.The monitorable quantities(131I nuclide activity concentration andγdose rate of compartment)used to judge inclusion failure are determined,the transfer relationship between compartment radiation level and reactor leakage rate is established,and the calculation method of criterion value is given.