X射线荧光分析中吸收和增强效应的理论校正

Theoretical Correction for Absorption and Enhancement Effects in XRF Analysis

本文以加权有效吸收系效的概念综合和重新整理了前人的基本参数方程,导出了一个与Rousseau算法相似的校正方程,提出了计算吸收和增强校正系数α和β的简便方法,扼要说明了α和β的物理意义并根据公式和实际计算结果具体计论了α和β的数值范围。最后列举了这一方程在样品分析和理论估量吸收和增强效应方面的应用。

A correction equation is derived from the fundamental parameter equation based on the concept of weighted effective absorption and enhancement effects corrected with α and β coeffients respectively, which can be worded out simply. The physical meaning and the ranges of α and β values are discussed according to their expressions and calculated results.Furthermore, the analyrical applications and thoretical estimation of absorption and enhancement are illustrated.