Hassenstein E, Nüsslin F
Strahlentherapie. 1979 Jan;155(1):15-9.
In order to examine the side radiation field of X-rays from the 42-meV Siemens betatron, transverse and depth dose distributions were measured in the phantom with LiF dosemeters. The influence on the dose distribution exerted by the kind of radiation and its energy, the rotation angle of the patient's table, and the field dimensions was determined. The quality of the side radiation and the effect of additional lead shieldings were examined. The dose distributions can be calculated approximately by means of an exponent which can be used in order to estimate the surface dose for all desired irradiation conditions and to determine any distances from the field edges.
为了研究42兆电子伏特西门子电子感应加速器产生的X射线的侧向辐射场，使用氟化锂剂量计在体模中测量了横向和深度剂量分布。确定了辐射种类及其能量、患者检查床的旋转角度和射野尺寸对剂量分布的影响。研究了侧向辐射的质量以及附加铅屏蔽的效果。剂量分布可以通过一个指数近似计算，该指数可用于估计所有所需照射条件下的表面剂量，并确定距射野边缘的任何距离。
