Barnes G T, Brezovich I A
Radiology. 1978 Jan;126(1):243-7. doi: 10.1148/126.1.243.
The ratio of scattered-to-primary radiation has been measured for a range of x-ray tube voltages, field sizes and phantom thicknesses that typify clinical mammographic situations. The relative intensity of scattered radiation measured was essentially independent of kVp but increased as the phantom thickness and radiation field size increased. For the range of field sizes and phantom thicknesses that typify clinical situations the intensity of scattered radiation varied from about 40 to 85% of the primary beam intensity indicating that only from about 54 to 71% of the primary beam contrast is imaged in mammography.
在一系列代表临床乳腺摄影情况的X射线管电压、射野大小和体模厚度条件下，已测量了散射辐射与原发射线的比率。所测量的散射辐射相对强度基本与千伏峰值无关，但随着体模厚度和辐射野大小的增加而增大。对于代表临床情况的射野大小和体模厚度范围，散射辐射强度在原发射线束强度的约40%至85%之间变化，这表明在乳腺摄影中，原发射线束对比度只有约54%至71%被成像。
