二维电离室矩阵在放疗的质量保证体系中的应用
窦一平;Xin Zhang;Eun Young Han;Yulong Yan
【期刊名称】《南京师范大学学报（工程技术版）》 【年(卷),期】2015(015)003
【摘要】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.%肿瘤的放射治疗中,为了检测治疗设备的性能以及确保放疗计划实施的可靠性和准确性,必须具备完善的质量保证体系(Quality Assurance,QA).本文研究将德国PTW公司研发的二维电离室矩阵Seven29应用到放疗的日常QA过
二维电离室矩阵在放疗的质量保证体系中的应用
