氢化锆中氢的散射律和散射矩阵研究  

STUDY ON THE SCATTERING LAW AND SCATTERING KERNEL OF HYDROGEN IN ZIRCONIUM HYDRIDE

作　　者：江新标[1] 陈伟[1] 陈达[1] 尹邦华[2] 谢仲生[2] 

机构地区：[1]西北核技术研究所 [2]西安交通大学

出　　处：《原子能科学技术》1999年第2期156-161,共6页Atomic Energy Science and Technology

摘　　要：从氢化锆晶体散射律的角度出发，研究了氢化锆晶体散射的特殊机理。根据氢化锆晶体散射的声学模型（ＤＥＢＹＥ谱）和光学模型（ＧＡＵＳＳ谱）给出的频谱分布，用国际通用程序ＧＡＳＫＥＴ计算了氢化锆中氢的散射律。编制了ＳＭＰ程序，计算了氢化锆中氢的散射矩阵，将它并入ＷＩＭＳ－Ｄ／４程序的６９群截面库，形成了用于铀氢锆堆计算的ＷＩＭＳ－ＮＩＮＴ库。应用国际上通用的ＷＩＭＳ－Ｄ／４程序计算了铀氢锆堆燃料栅元能谱。The nuclear analytical model of calculating scattering law and scattering kernel for the uranium zirconium hydrid reactor is described. In the light of the acoustic and optic model of zirconium hydride, its frequncy distribution function f(ω) is given and the scattering law of hydrogen in zirconium hydride is obtained by GASKET. The scattering kernel σ l(E 0→E) of hydrogen bound in zirconium hydride is provided by the SMP code in the standard WIMS cross section library. Along with this library, WIMS is used to calculate the thermal neutron energy spectrum of fuel cell. The results are satisfied.

关 键 词：铀氢锆堆 散射律 散射矩阵 能谱 氢化锆 

分 类 号：TL440.292[核科学技术—核技术及应用] TL329.2