摘要
目的 利用微机编制高能X射线的TMR、PDD表，以减少治疗机损耗和减少人工计算工作量。方法 利用射线在介质中指教衰减规律，测定各射野几个不同深度的吸收剂量值后，输入计算机，用计算机内编好的程序自动编制出TMR、PDD表。结果 计算机编制出可用于处方剂量计算的TMR和PDD表。结论 用计算机技术编制TMR、PDD表，可减少治疗机损耗，提高工作效率。
Objective To make use of the microcomputer establish the TMR and PDD form of the high energy X -ray to reduce wastage of the machine and the workload of the calculation. Method We measured the absorption doses of different depth in every field and inputed them into the computer by radial＇s attenuation rule at the medium, and then the TMR form and the PDD form was automatically estabhshed by the computer. Result The TMR and PDD form used for calculating prescription dose can be established by the computer. Conclusion The establishment of TMR and the PDD form by using the computer technique can reduce the machine wastage and increase the efficiency.
