【摘要】 本文以相当可靠的黑体辐射公式为基础,利用Hg_1-xCd_xTe样品本身的光截止特性测量样品的截止波长,再用E_g-x经验公式求出样品的组分（?）对样品进行二维扫描,获得了Hg_1-xCd_xTe样品横向组分的面分布。测得的组分均方根偏差与电子探针的测量结果符合得很好。更多还原

【Abstract】 The light-cut-off method based on an exceedingly reliable formula for black-body radiation is presented. The cut-off wavelengths of Hg_1-xCd_xTe sample are measured by use of the light cut-off characteristics of Hg_1-xCd_xTe, and then the compositions are found through empirical formula of E_g vs x. The transverse composition distribution of Hg_1-xCd_xTe samples is obtained by use of two-dimensional scan. The measured rms error of the composition is well coincident with the results measured with the method of electric probe.更多还原