多源照射器屏蔽设计模拟计算  

Simulation Study on Irradiator Reserving Multiple Radioactive Sources

作　　者：全林[1,2] 苗亮亮[1] 余小任[1] 潘孝兵[1] 

机构地区：[1]西北核技术研究所,西安710024 [2]中国原子能科学研究院,北京102413

出　　处：《辐射防护》2013年第2期102-106,共5页Radiation Protection

基　　金：国家自然科学基金资助项目(项目编号:11075130)

摘　　要：采用MC模拟方法对多源照射器不同结构部件的屏蔽厚度进行了模拟计算,在已设定的两个确定核素及活度的放射源情况下,结合屏蔽要求及加装的各放射源间干扰条件限值,对本装置加装另外两枚放射性源能力进行了设计计算。按照模拟计算得到的屏蔽参数加工建造了一台4源照射器,对该照射器进行了屏蔽效果的实验测量验证。The shielding thickness of irradiator＇ s different parts was simulated with Monte Carlo code MCNP, and additional capability of reserving two radioactive sources was designed and calculated under the condition of certain nuclides and activities as well as requirements of shielding and disturbance limits of working parameters interaction. The results and computation model were verified with experimental data, and a device with four sources was developed on the base of simulation data.

关 键 词：屏蔽设计 剂量率 储源能力 照射器 

分 类 号：TL77[核科学技术—辐射防护及环境保护]