某医用电子直线加速器CF因子关键参数测量及曲线拟合  

The Testing and Curve Fitting for CF Factor of Medical Electron Linear Accelerator

作　　者：马桥[1,2] 刘德明[1] 刘明哲[2] 刘冉[1] 

机构地区：[1]四川省疾病预防控制中心,成都610041 [2]成都理工大学地学核技术四川省重点实验室,成都610059

出　　处：《核电子学与探测技术》2017年第1期95-100,共6页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金(41274109);四川省科技支撑计划项目(2012SZ0179);四川省卫生和计划生育委员会重点科研课题(16PJ398)资助

摘　　要：利用德国PTW公司的UNIDOS放射治疗水平剂量仪,TW30013型0.6cc指型电离室,MP3-XS型三维水箱对美国VARIAN公司生产的某Clinac iX型医用电子直线加速器CF因子的TPR_(10)^(20)和D_(20)/D_(10)等关键参数进行测量,并利用Origin9.0统计分析软件进行曲线拟合。得到了X射线Pu-TPR_(10)^(20)、TPR_(10)^(20)-D_(20)/D_(10)和Sw,air-TPR010、电子线Pu-Ez和Sw,air-Rp等关键参数的曲线拟合方程,所有拟合方程的残差平方和都在E-04以下,拟合度很好。The radiotherapy dose level meter, NO. 30013 0.6cc finger- type chamber, 3 D water tank which all are made in Germany and the Clinac iX type of medical electron linear accelerator which is made by VARIAN have been used for this study. Then the testing and curve fitting for the key parameters of CF factor, such as 20 20 20 TPR10 20 and D20/D10, have been made. ,and getting the curve fitting equation for X- ray Pu - TPR20 10, TPR20 10- D20/D10, Sw,air- TPR10 20, electronics, Pu- Ez and Sw, air- Rp. The results show that the sum of squared re- siduals is below E -04. The results are very good.

关 键 词：医用电子直线加速器 吸收剂量 CF因子 曲线拟合 

分 类 号：TL99[核科学技术—核技术及应用]