反应堆测量孔道对屏蔽的影响

Effect of the measuring holes in the reactor on the shielding

介绍了反应堆设计中屏蔽计算方法，描述了测量孔道的物理计算模型，针对反应堆物理设计中提出的实际问题进行了计算，并对有关的参数作了选择，得到了符合精度要求的满意结果。结果表明，测量孔道对屏蔽是有影响的，只要采取一定的防护措施，可使剂量当量率达到规定的容许范围内，以确保反应堆的安全。这些结果为反应堆屏蔽设计提供重要的参考价值，为反应堆的安全性提供了科学依据。

A calculating method in the shielding design of the reactor is presented in this paper. The physics calculating model of the measuring holes is described. To some practical problems in the design of the reactor, a lot of calculating is made and some parameters are chosen properly. The results are satisfactory and they are concurrent with the requirement of accuracy. They show that the measurement holes have the effects on the shielding of the reactor. If some protection methods are used, the dose equivalent rate can be limited in an allowed range and the safety of the reactor is assured. These results provide some important reference values for the shielding design of the reactor, which supply the scientific basement to the reactor safety.