摘要
提供了一种用于设计医用电子直线加速器(linac) X射线均整过滤器的方法,并将其用于电子束辐射系统的优化过程之中。采用Monte Carlo模拟计算方法,提供了2个真实的国产医用电子直线加速器的辐射研究成果:BJ-20加速器的15 MV X射线辐射系统和BJ-14加速器的12 MeV电子束辐射系统。使用传统方法对上述成果进行了验证。
A method for designing an X-ray flatness filter for medical electron linac is developed. It is used in the optimization process in the electron beam radiation system. Monte Carlo simulation method is used and two examples of real radiation system optimization processes for China-made medical electron linac are provided： 15 MV X- ray system of BJ-20 linac, and 12 MeV electron system of BJ-14. Results are verified by using the traditional method.
基金
Supported by the National Natural Science Foundation of China (60672104,10675013)
the Na-tional Basic Research Program of China ("973"Program)(2006CB705705)
the 10th Five-Year Plan of the Ministry of Science and Technology of China(2001BA706B-05)
the Joint Research Foundation of Beijing Municipal Commissionof Education~~
关键词
直线加速器
蒙特卡洛模拟
辐射系统优化
均整滤波器设计
linear accelerators
computer simulation and Monte Carlo methods
radiation system optimization
flatness filter design
