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Rachinger法分离Kα双线时,假设重叠峰Kα双线分离度△(2θ)是常数,这是不确切的。事实上,Kα双线分离度是衍射角2θ和入射的Kα辐射波长的函数。本工作在Apple-Ⅱ型计算机上,采用修正的Rachinger法,计算了GCr15轴承钢退火试样使用钼Kα辐射和铁Kα辐射获得的4个衍射峰。结果表明,修正Rachinger法与常用的Rachinger法的结果差别分别为5～10%(强度)和3%(半高宽FWHM)左右(平均值)。由于修正Rachinger法比Rachinger法的计算较为严格,所以采用修正Rachinger法代替常用的Rachinger法,对于提高精度是有帮助的。计算程序中加入绘图程序,便于结果比较。
When Rachinger’s method separates Kα double lines, it is imprecise to assume that the double peak separation Kα (2θ) of the overlapped peaks is constant. In fact, the Kα two-line resolution is a function of the diffraction angle 2θ and the incident Kα radiation wavelength. This work was carried out on the Apple-Ⅱ computer using a modified Rachinger method to calculate the four diffraction peaks obtained by the molybdenum Kα radiation and iron Kα radiation on the GCr15 bearing steel annealed samples. The results show that the difference between the modified Rachinger method and the commonly used Rachinger method is about 5 ~ 10% (intensity) and 3% (FWHM), respectively. Since the modified Rachinger method is more rigorous than the Rachinger method, it is helpful to improve the precision by using the modified Rachinger method instead of the commonly used Rachinger method. Add a drawing program to the calculation program to facilitate comparison of results.