南京师范大学学报（工程技术版）2015，Vol.15Issue(3)：18-23,6.
二维电离室矩阵在放疗的质量保证体系中的应用
Application of 2D Ion Chamber Array in Quality Assurance of Radiation Therapy
摘要
Abstract
The Quality Assurance(QA)in the treatment of malignant diseases is highly required in the processes of peri?odical machine performance evaluation and patient-specific dose distribution verification for the safe and accurate radia?tion therapy. This study aims to evaluate the performance of the PTW ion chamber array Seven29 in routine QA proce?dures. The method for the study is to use Seven29 with the dedicated Octavius phantom and slab phantom in the dose distribution measurement for the verification of the dose map computation on the treatment planning systems. PTW soft?ware VeriSoft and MultiCheck are used for the analysis. Beam profile consistency check,one of the most important items for LINAC monthly QA,can be directly evaluated between two consecutive months. Ion chamber array has proven to be an accurate,reliable and efficient physics gadget for various dosimetry verification procedures. It is one of the essential components of a paperless and filmless radiation therapy facility.关键词
二维电离室矩阵/QA/剂量图测量/PTW Seven29Key words
2D ion chamber array/quality assurance(QA)/dose map measurement/PTW Seven29分类
机械制造引用本文复制引用
窦一平,Xin Zhang,Eun Young Han,Yulong Yan..二维电离室矩阵在放疗的质量保证体系中的应用[J].南京师范大学学报（工程技术版）,2015,15(3):18-23,6.基金项目
美国阿肯色大学医学院博士后研究基金(P-1-03650). （P-1-03650）
