Output Dose Measurement and Stability Retrospective Analysis of
Synergy Medical Accelerator in 3 Years
LUO Bin1,2, LI Xianfu1,2, CAO Lu1,2, GUO Fei1,2, XIE Li1,2, XU Peng1,2, YANG Huadong1,2
1. Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Nanchong Sichuan 637000, China;
2. Sichuan Key Laboratory of Medical Imaging, Nanchong Sichuan 637000, China
Abstract：Objective To analyze the theoretical basis and specific methods of Synergy accelerator output dose measurement, and
retrospectively analyze its stability and influencing factors through the 3-year absorbed dose measurement results. Methods Firstly,
the weekly output dose of the Synergy accelerator was measured in accordance with the requirements of IAEA TRS-277, and
statistical software SPSS was used to analyze the measurement results of 141 weekly tests and find out the abnormal
points. Results The weekly test results of the commonly used nominal energy of 6 MV were P>0.05 by single sample K-S
test, which was in line with the requirement of normal distribution.The P value of abnormal points increased significantly after
recalibration, and there was no statistical difference before and after calibration (P>0.05). The results showed that the data met
the relevant national standards and the standard of stability and dose deviation ≤±3% in AAPM TG-142, which was close to the
requirement of IAEA-277 dose deviation <2%. Conclusion The output dose of Synergy accelerator in our hospital was stable, and
the weekly test results showed normal distribution, which could meet the basic requirements of clinical treatment.
罗斌1,2，李贤富1,2，曹璐1,2，郭飞1,2，谢力1,2，许鹏1,2，阳华东1,2. Synergy医用加速器3年输出剂量测量及其稳定性回顾分析[J]. 中国医疗设备, 2022, 37(5): 60-63.
LUO Bin1,2, LI Xianfu1,2, CAO Lu1,2, GUO Fei1,2, XIE Li1,2, XU Peng1,2, YANG Huadong1,2. Output Dose Measurement and Stability Retrospective Analysis of
Synergy Medical Accelerator in 3 Years. China Medical Devices, 2022, 37(5): 60-63.
