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同位素  2015 

X射线荧光分析中原级谱分布的计算

DOI: 10.7538/tws.2015.28.02.0089, PP. 89-92

Keywords: X射线荧光分析,蒙特卡罗方法,计算谱,原级谱分布

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Abstract:

X射线荧光分析中,X射线管产生的原级谱的分布对荧光分析的影响很大。尤其是在元素间吸收增强效应的校正过程中,基本参数法要求准确获得X射线原级谱的强度分布。使用MCNP程序模拟不同加速电压、不同靶材料、不同铍窗厚度等条件下电子打靶后的X射线能谱分布,为X射线荧光分析仪研制过程优化X光管靶材、管压等提供依据,实现高精度的X射线荧光分析。

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