SEMIEMPIRICAL MODEL FOR GENERATING TUNGSTEN TARGET X-RAY-SPECTRA
SEMIEMPIRICAL MODEL FOR GENERATING TUNGSTEN TARGET X-RAY-SPECTRA
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DOI：
10.1118/1.596709
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发表时间：
1991-03-01
期刊：
影响因子：
3.8
通讯作者：
CHAKRABORTY, DP
中科院分区：
文献类型：
--
作者：
TUCKER, DM;BARNES, GT;CHAKRABORTY, DP
本文提出了一个产生钨靶X射线谱的半经验模型。 该模型在两个重要领域扩展了早期的工作。 首先，假设韧致辐射和特征X射线产生发生在目标内的不同深度。 其次，利用非线性最小二乘法从实验光谱确定模型的最佳参数。 其结果是，良好的协议之间获得的计算和测量的X射线管光谱和输出为不同的目标角度和宽范围的X射线管电位。 这不是以前发布的模型的情况。
A semiempirical model for generating tungsten target x-ray spectra is presented. This model extends earlier work in two significant areas. First, both bremsstrahlung and characteristic x-ray production are assumed to occur at varying depths within the target. Second, optimal parameters for the model were determined from experimental spectra utilizing nonlinear least-squares techniques. As a result, good agreement is obtained between calculated and measured x-ray tube spectra and output for different target angles and a wide range of x-ray tube potentials. Such is not the case with previously published models.