Huang P H, Chen T S, Kase K R
Med Phys. 1986 Sep-Oct;13(5):707-10. doi: 10.1118/1.595834.
Numerical reconstruction of x-ray spectra from narrow-beam transmission data was tested with published spectra in the range from 45 to 100 kVp. Transmission curves were calculated from the spectra to simulate measured data. Spectra were reconstructed from these transmission curves with use of an iterative numerical analysis. Comparison of the calculated spectra with the original spectra shows good agreement, including the tungsten characteristic x rays. This demonstrates the potential usefulness of measured transmission data for deducing x-ray spectra in the diagnostic energy range.
利用已发表的45至100 kVp范围内的X射线光谱，对从窄束透射数据进行X射线光谱的数值重建进行了测试。根据光谱计算透射曲线以模拟测量数据。使用迭代数值分析从这些透射曲线重建光谱。计算得到的光谱与原始光谱的比较显示出良好的一致性，包括钨特征X射线。这证明了测量的透射数据在推导诊断能量范围内的X射线光谱方面的潜在用途。
