摘要
目的 瓦里安直线加速器VitalBeam自带性能验证功能(MPC),利用MPC的各项性能参数分析VitalBeam加速器的日常稳定性。方法 以6 MV光子线的MPC记录结果为基础,基于加速器装机后半年和装机后一年半到两年的两组数据,分析VitalBeam加速器各参数与基准值的偏离情况。结果 两组半年数据均未有超出阈值的样本出现,VitalBeam加速器MPC记录的输出剂量、机械精度均能满足日常质量保证的误差要求。结论 MPC能快速高效地完成加速器的日检,可作为VitalBeam加速器日检的常规手段。
【Objective】 To analyze the daily stability of Valian linear accelerator VitalBeam(Machine Performance Check,MPC) using various performance parameters of MPC. 【Methods】 Based on the MPC recording results of 6 MV X-Ray and the data of one and two years of the accelerator, the deviation of VitalBeam accelerator parameters from the reference value was analyzed. 【Results】 Neither half-annual data exceeded the threshold, and the output dose and mechanical accuracy recorded by VitalBeam accelerator MPC could meet the error requirements of daily quality assurance. 【Conclusion】 The MPC can complete the daily inspection of the accelerator quickly and efficiently, and can be used as a routine means of the daily inspection of the VitalBeam accelerator.
作者
杨玉敏
YANG Yumin(Oncology Radiotherapy Center,First Affiliated Hospital of Anhui Medical University,Hefei,Anhui 230000,China)
出处
《中国医学工程》
2022年第9期1-4,共4页
China Medical Engineering
