【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TPR₁₀²⁰和D₂₀/D₁₀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-TPR₁₀²⁰、TPR₁₀²⁰-D₂₀/D₁₀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。更多还原

【Abstract】 The radiotherapy dose level meter,NO. 30013 0. 6cc finger-type chamber,3D water tank which all are made in Germany and the Clinac i X 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 TPR₁₀²⁰ and D₂₀/D₁₀,have been made.,and getting the curve fitting equation for X-ray Pu-TPR₁₀²⁰,TPR₁₀²⁰-D₂₀/D₁₀,Sw,air-TPR₁₀²⁰,electronics,Pu-Ezand Sw,air-Rp. The results show that the sum of squared residuals is below E-04. The results are very good.更多还原