直线加速器工业应用中次屏蔽区环保设计

Environmental Protection Design of Secondary Shielding Area for Industrial Applications of Linear Accelerators

直线加速器主要用于厚度较大的物体探伤,但是直线加速器剂量率非常高。在实际应用中正确地计算次屏蔽区混凝土厚度,使其既能够满足环境保护的要求,又能够最大限度地降低成本,便显得非常重要。本文通过分析次屏蔽区射线种类、每种射线的能量值、能量值对应的什值层选取以及每种射线对应的剂量率选取,最终得到屏蔽区环保设计厚度。

Linear accelerators are mainly used for flaw detection of thick objects,but the linear accelerator dose rate is very high.It is very important to correctly calculate the concrete thickness of the secondary shielding area in practical applications so that it can meet the requirements of environmental protection and minimize the cost.In this paper,by analyzing the ray type of the secondary shielding area,the energy value of each ray,the selection of the corresponding value layer of the energy value and the dose rate corresponding to each ray,the environmental protection design thickness of the shielding area is finally obtained.