Hochhäuser E
Strahlentherapie. 1977 Dec;153(12):820-4.
The TAR's resulting from the bilateral 60Co-irradiation of an homogeneous whole body phantom and of a quadratic phantom are measured in their midlines and at their surfaces of incidence. They are compared with measurements on a patient. The dose contributions of scattered radiation and its effective energy are determined by means of a simple water-phantom. Investigations concerning the influence of the "os ilium" on the midline dose showed that besides the former mentioned other bone structures too in the pelvic area are responsible for the low rectal dose in patients. Rectal doses therefore should not considered representative for the midline dose. The variation of the midline dose depending on the source distance is discussed.
对均匀全身模型和方形模型进行双侧60钴照射所产生的组织空气比（TAR），在其中心线及其入射表面进行测量。将它们与对患者的测量结果进行比较。通过一个简单的水模体确定散射辐射的剂量贡献及其有效能量。关于“髂骨”对中心线剂量影响的研究表明，除了上述情况外，盆腔区域的其他骨骼结构也会导致患者直肠剂量较低。因此，直肠剂量不应被视为中心线剂量的代表。讨论了中心线剂量随源距离的变化。
