Calculation of Characteristic X-rays in Diagnostic X-ray Spectrum
Calculation of Characteristic X-rays in Diagnostic X-ray Spectrum
复制标题
诊断X射线谱中特征X射线的计算
DOI：
10.1143/jjap.33.347
复制
发表时间：
1994
影响因子：
1.5
通讯作者：
H. Kanamori
中科院分区：
文献类型：
--
作者：
N. Nakamori;Kaname Yamano;M. Yamada;H. Kanamori
我们检查了Fewell等人的实验数据[ Handbook of Computed Tomography X-Ray Spectra（HHS Publication，Rockville，1981）No.81 -8162]，该实验数据显示了特征辐射产额随射束角的变化，但没有证实先前工作者提出的任何模型来解释其变化。本文提出了一种计算医用诊断X射线管特征辐射韧致辐射强度的新方法。我们的方法是基于韧致辐射光子与目标材料的光电相互作用，其中所使用的韧致辐射光谱是考虑到我们以前的论文中描述的目标材料中的电子能量分布计算的。我们的方法不包括任何调整参数来拟合实验数据。我们的计算结果与Fewell等人的实验结果符合得很好，特别是用我们的方法计算的特征辐射强度与光束角的关系与Fewell等人的实验结果一致，而前人提出的方法导致了反向依赖。
We examined the experimental data of Fewell et al. [ Handbook of Computed Tomography X-Ray Spectra (HHS Publication, Rockville, 1981) No. 81–8162], which exhibited the variation of the characteristic radiation yield with the beam angle, but did not confirm any model proposed by previous workers to explain its variation. We developed a new method of calculating the intensity of \hyphenationbrems-strah-lung the characteristic radiation for the X-ray tube used in medical diagnosis. Our method was based on the photoelectric interactions of the bremsstrahlung photons with the target material, where the bremsstrahlung spectra used were calculated taking into account the electron energy distributions in a target material described in our previous paper. Our method did not include any adjustment parameters to fit with experimental data. Our calculated results are in good agreement with the experimental results of Fewell et al. In particular, the dependence of the intensity of the characteristic radiation on the beam angle, calculated using our method, agreed with the experiment results of Fewell et al., while the methods proposed by previous workers led to the reverse dependence.