计算物理 ›› 1987, Vol. 4 ›› Issue (1): 62-70.

• 论文 • 上一篇    下一篇

各向异性晶体散射律的计算

胡永明   

  1. 清华大学核能技术研究所
  • 收稿日期:1986-07-22 出版日期:1987-03-25 发布日期:1987-03-25

CALCULATION OF THE THERMAL NEUTRON SCATTRING LAW FOR THE ANISOTROPIC MICROCRYSTAL

Hu Yong-Ming   

  1. Institute of Nuclear Energy Qinghua University
  • Received:1986-07-22 Online:1987-03-25 Published:1987-03-25

摘要: 本文推导了各向异性晶体散射律的傅立叶变换计算公式,研究了零声子分出项系数德拜因子的精确计算对于结果收敛的重要性。以本方法为基础编制的程序用于石墨各向异性晶体的计算,结果表明本方法是精确的有效性的。

Abstract: A formula for calculation of the thermal neutron scattering law for the anisotropic microcrystal which is based on Fourier transform is derived in the paper. A formula for calculation of Debye-Waller factor is derived,too.The analyses for calcuated results of anisotropic graphite are presented. It is shown that the method is effective and it is necessary to take the co-rrect value of Debye-waller. factor.