用微机编制高能X射线TMR和PDD表的方法探讨  

Method of using the microcomputer to establish the TMR and PDD form of the high energy X-ray

作　　者：庄梅生[1] 杨秋权[1] 林春平[1] 蔡白芒[1] 刘孝景[1] 

机构地区：[1]广东省揭阳市人民医院放疗科,广东揭阳522000

出　　处：《中华肿瘤防治杂志》2009年第12期950-952,共3页Chinese Journal of Cancer Prevention and Treatment

摘　　要：目的:利用微机编制高能X射线的组织最大剂量比(TMR)、百分深度剂量(PDD)表。方法:利用射线在水介质中指教衰减规律,测定模体中各射野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和PDD表。结果:计算机编制出可用于处方剂量计算的TMR和PDD表。讨论:用计算机技术编制TMR、PDD表,利用指教衰减规律插值,可减少测量点,减少治疗机损耗和提高工作效率。OBJECTIVE：To make use of the microcomputer to establish the TMR and PDD form of the high energy X-ray. METHODS： The absorption doses of different depth in every field was measured and inputted them into the computer by radial＇s attenuation rule at the water medium, and then the TMR form and the PDD form was automatically established by the computer. RESULTS：The TMR and PDD form used for calculating prescription dose could 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.

关 键 词：TMR表 PDD表 计算机程序 

分 类 号：TH789[机械工程—仪器科学与技术]