Vasil'ev V N, Sidorin V P, Stavitskiĭ R V
Med Tekh. 1985 Jan-Feb(1):37-41.
The X-ray photon spectra of a number of generally used radiotherapeutic systems have been studied by using a semiconductor Ge detector. The voltage ranges from 80 to 200 kV. The procedure of converting pulse-height distributions into photon spectra is described. The relation between the shape of the spectrum and the anode current is discussed. The data are useful for more precise calculations of the absorbed dose when planning radiotherapy.
利用半导体锗探测器对一些常用放射治疗系统的X射线光子能谱进行了研究。电压范围为80至200千伏。描述了将脉冲高度分布转换为光子能谱的过程。讨论了能谱形状与阳极电流之间的关系。这些数据对于放射治疗计划中吸收剂量的更精确计算很有用。
