A new method equivalent to "characteristic/scattering ratio" in radioisotope XRF technique

Yexun Cheng; Lei Liu

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A new method equivalent to "characteristic/scattering ratio" in radioisotope XRF technique

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- A new method equivalent to "characteristic/scattering ratio" in radioisotope XRF technique
- Nuclear Techniques Vol. 07, Issue 6, (1984)
- 作者机构：
  
  成都地质学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：30 November 1983，
  
  Published：1984-06
- 稿件说明：
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Yexun Cheng, Lei Liu. A new method equivalent to "characteristic/scattering ratio" in radioisotope XRF technique[J]. Nuclear techniques, 1984, 07(6): 11-14,F3,63,64.
DOI：

Yexun Cheng, Lei Liu. A new method equivalent to "characteristic/scattering ratio" in radioisotope XRF technique[J]. Nuclear techniques, 1984, 07(6): 11-14,F3,63,64. DOI：

摘要

在一定的条件下，待测元素特征X射线和康普顿散射强度比值，与待测元素特征X射线强度和带吸收滤片所测量的强度比值之间有着简单的双曲函数关系。利用这一函数关系，很容易在单道携带式放射性同位素X射线荧光分析仪上实现“特散比”法改善基体效应。用这种方法所得到的分析结果和用“特散比”法得到的分析结果，二者吻合很好，而且不需要增加任何设备，节省了测量时间和成本。已经测量了几种类型的锡矿样品和某些铜矿样品。

Abstract

Under some conditions

there is a simple hyperbola function relationship between the ratio of the characteristic X-ray intensity of an element analysed to Compton scattering intensity by primary X-ray and the ratio of the characteristic X-ray intensity of the element to the intensity measured with a absorbent filter. The hyperbola function relationship enables us to improve the matrix effect easily by using the method of "characteristic/scattering ratio" with a portable radioisotope X-ray fluorescence single channel analyzer. The results of this new method is fairly identical with that of "characteristic/scattering ratio". Besides

there is no need of extra devices and it saves time and money. Many types of Sn samples and one type of Cu sample have been analysed.

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references

周蓉生等，成都地质学院学报， 1 ，（ 1983 ）。

同上， 4 ，（ 1983 ）。

张家骅等，放射性同位素X射线荧光分析，原子能出版社， 1981年，第134页。

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