A Method for Judgment of Inclusion Failure of Reactor Compartment Based on Radiation Monitoring
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摘要: 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。Abstract: 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 and γ dose 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.
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Key words:
- Reactor compartment /
- Inclusion failure /
- Leak rate /
- Radiation monitoring /
- Nuclear accident
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图 1 半球体点核积分示意图
r—源到半球体中心A的距离，cm；R—半球体的半径，cm；θ—源到球体中心A的连线与正Z轴之间的天顶角（0~π/2）；φ—源到球体中心A的连线在XY平面的投影线与正X轴之间的方位角（0~2π）
Figure 1. Schematic Diagram of Hemispherical Point Kernel Integration
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[1] 李德平,潘自强. 辐射防护手册-第一分册—辐射源与屏蔽[M]. 北京: 中国原子能出版社,1987: 244-246. [2] 石益洲,肖德定,江邦治. 秦山核电厂反应堆安全壳整体密封性能试验[J]. 核科学与工程,1992, 12(3): 193-199. -
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