论文部分内容阅读
一、引言在X射线线形分析中测算多晶结构材料的嵌镶尺寸D和点阵畸变ε中,当二级衍射线衍射强度很弱时,采用单线分析的Voigt函数法较为合适。近年来文献详细介绍了该方法的原理,并解决了具体计算问题,国内也开始了研究。本文简单地推导了该方法的所有基本公式,介绍通用的算法和图表,给出了实用的Basic语言程序,并以实例说明具体应用。二、Voigt函数法的原理和特点由Voigt函数定义可知:(1)Voigt函数是一个双参数函数,参数k_c和k_e不仅决定了
I. INTRODUCTION In the X-ray linear analysis, when calculating the mosaic size D and the lattice distortion ε of polycrystalline structure materials, the Voigt function method using single-line analysis is more suitable when the diffraction intensity of the second-order diffraction line is weak. In recent years, the literature introduces the principle of this method in detail, and solves the specific calculation problems, and also starts research in China. In this paper, we simply deduce all the basic formulas of this method, introduce common algorithms and graphs, give a practical Basic language program, and illustrate the concrete application with examples. Second, the principle and characteristics of the Voigt function method The Voigt function definition shows: (1) Voigt function is a two-parameter function, the parameters k_c and k_e not only determines