SCALE5.1程序系统中蒙特卡罗方法模块与离散纵坐标模块在乏燃料运输容器屏蔽计算中的比较分析  

A Comparison of Shielding Calculation for a Spent Fuel Shipping Cask by Using 3D Monte Carlo and 1D Discrete-ordinates Methods

作　　者：张普忠[1] 陈义学[1] 毛亚蔚 马续波[1] 韩静茹[1] 杨寿海[1] 石生春[1] 张斌[1] 王继亮[1] 

机构地区：[1]华北电力大学核科学与工程学院,北京102206 [2]中国核电工程有限公司,北京100840

出　　处：《辐射防护》2010年第6期373-378,共6页Radiation Protection

基　　金：国家自然科学基金资助项目(10875042);北京市科技新星计划项目(2007B058);长江学者和创新团队发展计划资助(IRT0720)

摘　　要：以某型乏燃料运输容器为计算模型,分别利用SCALE5.1程序系统中的一维离散纵标法程序和三维蒙特卡罗方法程序对运输容器进行了屏蔽计算,计算结果表明,两种方法的总当量剂量率结果相对偏差在10%以内。最后对两个模块的应用特点及差异进行了比较分析,为其在乏燃料容器屏蔽计算中的应用提供参考。Taking a spent fuel shipping cask as calculation model, detailed shielding calculations were performed using one-dimensional discrete-ordinates code SAS2 and three-dimensional Monte Carlo method code SASd in SCALE 5.1 code system. Results show that the total dose rate calculated by the two methods accords with each other well and the relative error is less than 10%. Finally the two methods were comparatively analyzed in characteristics and difference, which provides references for their applications in spent fuel cask shielding calculations.

关 键 词：离散纵标法 蒙特卡罗方法 乏燃料运输容器 辐射屏蔽 

分 类 号：TL77[核科学技术—辐射防护及环境保护] TL93