伽玛辐照装置钴源排布界面程序的开发和应用  

Development and application of cobalt source layout interface program for gamma irradiation device

作　　者：刘江平 陈强 LIU Jiangping;CHEN Qiang(Zhongjin Irradiation Incorporated Company,Shenzhen 518000,China)

机构地区：[1]中金辐照股份有限公司,深圳518000

出　　处：《辐射研究与辐射工艺学报》2024年第5期107-117,共11页Journal of Radiation Research and Radiation Processing

摘　　要：采用MATLAB App Designer软件,基于点核积分法、蒙特卡罗方法原理,设计了伽玛辐照装置钴源排布效果界面程序。界面程序可模拟钴源手动排布操作和自动排布计算过程,实时显示操作模块钴源位置变化和整个源强效果图,并可快速计算源架表面剂量分布和产品空间剂量分布图。在预期的参数条件下,通过导入钴源活度、位置等信息参数,界面程序可自动排源计算和选取最优排源方案。界面程序导出的排布方案,可用于GEANT4蒙特卡罗程序直接运行,从而验证排布方案准确性。通过对不同钴源活度在集中和分散两种排布方式计算比较,结果表明界面程序与GEANT4计算有较好的吻合性。在新增钴源或调整排布方案时,对选择最优方案和提高钴源能量利用率、辐照装置产能等方面起到重要作用。This study uses the MATLAB App Designer software based on the principles of point kernel integration and the Monte Carlo method to design an interface program for the cobalt source layout effect of gamma irradiation equipment.The interface program can simulate the manual and automatic layout calculation processes of cobalt sources,display real-time changes in the cobalt source position of the operation module and the entire source intensity effect map,and rapidly calculate the surface dose distribution of the source rack and the spatial dose distribution map of the product.Under the expected parameter conditions,the interface program can automatically calculate and select the optimal source discharge scheme by importing information such as the cobalt source activity and position.The layout scheme exported by the interface program can be used to execute the GEANT4 Monte Carlo program directly,thereby verifying the accuracy of the layout scheme.By comparing the concentration and dispersion of different cobalt source activities,the results show that the interface program agrees well with the GEANT4 calculations.Adding cobalt sources or adjusting the layout plan is important for selecting the optimal plan,improving the utilization rate of cobalt sources,and increasing the production capacity of irradiation equipment.

关 键 词：点核积分法 蒙特卡罗方法 界面程序 排源计算 GEANT4 

分 类 号：TL99[核科学技术—核技术及应用]