界面效应对高能电子线剂量分布的影响研究

A reseach for interface effect to influence high energy electric beam's dose distribution

利用蒙特卡罗方法应用软件EGSnrc程序,研究界面效应对宽束高能电子线剂量空间分布的影响,计算并讨论了在不同组织界面处百分深度剂量所发生的变化,与传统的校正方法相比较,对比不同算法之间的差异.通过理论分析与实验检验,用蒙特卡罗方法得到结果更为准确,也更符合实际.

Apply EGSnrc application software of Monte Carlo methods to research the interface effect to influence high energy electric beam＇s dose distribution, calculated and discussed the depth-percentage dose variety near the interface, and compared with the conventional correction methods and show their difference. Theoretical analysis and experimental examinations show that Monte Carlo methods＇ results are more accurate and tally with the practice.