托卡马克混合堆核包层中子学特性分析  

NEUTRONICS CHARACTERISTIC ANALYSES OF THE TOKAMAK BREEDER BLANKET

作　　者：焦一鸣[1] 

机构地区：[1]核工业西南物理研究院

出　　处：《核科学与工程》1993年第3期226-231,6,共6页Nuclear Science and Engineering

摘　　要：从中子数据库VITAMIN-C开始,利用AMPX-Ⅱ模块,经过一系列处理,得到了包括能量自屏效应在内的一系列反应截面。利用计算一维中子输运的ANISN程序,完成了几种模型的中子学计算。主要考察了2个问题:1内外包层问的相互影响。2中子的斜射效应(包层形状的影响)。研究结果表明,内、外包层间的相互影响很大,这与包层的结构有关,不可忽视。包层结构差别越大,相互间的影响也越大。由于入射中子不断地与包层中核素发生散射而改变方向,因而中子的斜射效应不是很大。By processing VITAMIN-C with AMPX-Ⅱ, a set of cross sections which includes the effect of the energy selfshielding has been obtained and the neutronics calculations have been finished through the ANISN code which considered two issues:1 The mutual effects between the inboard and outboard blankets. 2 The neutron inclined injection effect (blanket shape effect). It is shown that the mutual effects between the blankets are considerable, if the difference between the two blankets is large. It cann't be ignored. Generally, the larger the difference between the blankets is, the greater the mutual effects between the blankets are. The neutron inclined injection effect is not very large because the scattering changes the direction of the neutrons frequently.

关 键 词：包层 混合堆 中子输运理论 

分 类 号：TL460.24[核科学技术—核技术及应用]