Haus A G, Metz C E, Chiles J T, Rossmann K
Radiology. 1976 Mar;118(3):705-9. doi: 10.1148/118.3.705.
The measured x-ray spectra from a molybdenum anode Senographe mammography unit and a tungsten anode unit were used to calculate the x-ray energy spectra transmitted through various thicknesses of fat and water (breast-equivalent materials). The dependence of subject contrast and patient exposure on (a) x-ray spectra, (b) attenuation properties of two breast-equivalent materials, and (c) thickness of breast-equivalent material was predicted. Radiographs of resected breast tissue confirmed these predictions and demonstrated the general relative effects of x-ray beam quality on image contrast in mammography.
利用钼靶乳腺摄影设备的钼阳极和钨阳极设备测得的X射线光谱，计算透过不同厚度脂肪和水（乳腺等效材料）的X射线能谱。预测了受检者对比度和患者照射量对（a）X射线光谱、（b）两种乳腺等效材料的衰减特性以及（c）乳腺等效材料厚度的依赖性。切除乳腺组织的X光片证实了这些预测，并展示了X射线束质量对乳腺摄影图像对比度的一般相对影响。
