Failure Analysis and Maintenance of Helical Tomotherapy System
WANG Wenbao1, ZHANG Ling1, LIU Juan1, FANG Xingping2, YAN Jing1, YANG Mi1
1. Department of Radiotherapy, Cancer Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical
School, Nanjing Jiangsu 210008, China; 2. CNNC Accuray (Tianjin) Medical Technology Co., Ltd., Tianjin 300399, China
Abstract：Using the machine according to the operation specifications in daily work and taking a proactive way to maintain the
equipment can effectively reduce the failure rate of the machine, improve the utilization rate of the machine, which can make the
equipment better serve patients. This article briefly introduced the basic composition of helical tomotherapy system and the working
principle of magnetron, multi-leaf collimator and other main components. The causes of dose rate instability and error reporting of
multi-leaf collimator system were analyzed in detail. The maintenance principle of simplicity before complexity was adopted, and the
specific trouble shooting methods were given respectively. It provided reference for peers to deal with similar faults.
王文保1，张陵1，刘娟1，方兴平2，闫婧1，杨觅1. 螺旋断层放疗系统故障分析与维修[J]. 中国医疗设备, 2022, 37(9): 169-171.
WANG Wenbao1, ZHANG Ling1, LIU Juan1, FANG Xingping2, YAN Jing1, YANG Mi1. Failure Analysis and Maintenance of Helical Tomotherapy System. China Medical Devices, 2022, 37(9): 169-171.