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常规外照射治疗时，通常要由查表的方法来确定百分深度剂量、组织最大比、楔形因子及射野输出因子，从而计算出加速器跳数（ＭＵ）或Ｃｏ－６０治疗机开机时间，手工计算既费时又麻烦。笔者利用ＱｕｉｃｋＢＡＳＩＣ４．５语言设计了一简单、易行的计算程序，在ＩＢＭ兼容机上实现了上述参数的自动计算，该程序操作简单、计算结果可靠，可广泛用于外照射治疗参数计算、设置。
Conventional external beam radiotherapy, usually by the method of table lookup to determine the percentage depth dose, tissue maximum ratio, wedge factor and field output factor, to calculate the accelerator hops (MU) or Co-60 treatment machine boot time, Manual calculation is both time consuming and cumbersome. The author designed a simple and easy calculation program in QuickBASIC4.5 language and realized the automatic calculation of these parameters in IBM compatible machine. The program has simple operation and reliable calculation, which can be widely used in the calculation and setting of external irradiation treatment parameters.