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均整器是X射线模式下医用加速器治疗头中的重要部件,并且通常使用Monte Carlo方法进行设计。设计均整器需要的数据精度较高,模拟时间较长;且需反复修正,使得整体设计的时间会很长。该文在3个方面总结了实际使用BEAM程序的经验和技巧:在Windows操作系统下采用批处理运行程序的方式增加计算机工作效率;利用合并对称网格技巧减小计算结果的方差;通过理论模型快速设计均整器轮廓。这些技巧使得均整器设计时间大大缩短,提高了工作效率。
The homogenizer is an important part of the medical accelerator treatment head in X-ray mode and is usually designed using the Monte Carlo method. The design of the averaging device requires a high degree of accuracy of data, simulation time is longer; and need to be amended repeatedly, making the overall design time will be very long. The article summarizes the experience and skills of actually using BEAM programs in three aspects: increasing the work efficiency of the computer by using the batch running program under the Windows operating system; reducing the variance of the calculation results by using the symmetrical symmetry grid technique; Fast design of the outline of the straightener. These techniques make the design time of the straightener greatly shortened, improve work efficiency.