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23EX直线加速器 7年故障统计分析经验
谭庭强,李黎,黄仁炳
610041 成都,四川省肿瘤医院·研究所 四川省癌症防治中心电子科技大学医学院
Experience in statistical analysis of failure of a 23EX linear accelerator within 7 years
Tan Tingqiang,Li Li,Huang Renbing
Sichuan Cancer Hospital & Institute,Sichuan Cancer Center, School of Medicine,University of Electronic Science and Technology of China,Chengdu 610041,China
Objective To study the application of statistical analysis of failure in the maintenance of a 23EX linear accelerator. Methods The failure data of a 23EX linear accelerator were collected from 2008 to 2015. The relationship between failure frequency and running time of the 23EX linear accelerator was analyzed. The Pareto diagram was used to analyze the main subsystems and components that had impacts on the stability of the 23EX linear accelerator. Results The 23EX linear accelerator had a total of 318 failures and 358 components replaced in 7 years. Within the first 1.5 years of use, the failure frequency gradually increased and the highest frequency was up to 38 failures per 6 months. Afterwards, the failure frequency declined and remained relatively stable. The third quarter had the highest failure frequency in a year. Multileaf collimator (MLC) and mechanical system, responsible for 66.4% and 11.9% of failures, respectively, were the main subsystems that had impacts on the stability of the 23EX linear accelerator. MLC nut and motor, taking 38.8% and 28.5% of replaced components, respectively, were the main components that had impacts on the stability of the 23EX linear accelerator. Conclusions The statistical analysis of accelerator failure helps maintenance personnel figure out the distribution of failures and identify the main factors for the accelerator stability. Moreover, it provides a basis for improving maintenance strategy.
Tan Tingqiang,Li Li,Huang Renbing. Experience in statistical analysis of failure of a 23EX linear accelerator within 7 years[J]. Chinese Journal of Radiation Oncology, 2016, 25(12): 1341-1344.
[1] 沈瑜.肿瘤放疗相关研究的进展[J].中华放射肿瘤学杂志,2005,14(1):71-72.10.3760/j.issn。1004-4221.2005.01.021.
Shen Y. Adrances in tumor radiotherapy[J]. Chin J Radiat Oncol,2005,14(1):71-72.10.2760/j.issn.1004-4221.2005.01.021.
[2] 陈渝,吴晓东,万久庆,等.直线加速器 554例器件故障统计分析[J].医疗设备信息,2004,19(6):49-50.10.3969/j.issn.1674-1633.2004.06.028.
Chen Y,Wu XD,Wan JQ,et al. The statistical analysis of 554 part faults of the accelerator[J].Inf Med Equip,2004,19(6):49-50.10.3969/j.issn.1674-1633.2004.06.028.
[3] 顾本广,林郁正,赖启基,等.医用加速器[M].北京:科学出版社,2003.
Gu CHB,Lin YZH,Lai QJ,et al. Medical accelerator[M].Beijing:Science Press,2003.
[4] 徐廷学,王鑫,安进,等.基于故障统计分析的导弹可靠性研究[J].舰船电子工程,2013,33(9):117-120.10.3969/j.issn.1672-9730.2013.09.038.
Xu TX,Wang X,An J,et al. Study on missile equipment reliability based on fault statistics evaluation[J].Ship Electron Eng,2013,33(9):117-120.10.3969/j.issn.1672-9730.2013.09.038.
[5] 王立军.故障统计分析在卫星通信设备维护中的应用[J].空中交通管理,2004,(6):30-31.
Wang LJ.Application of statistic analysis for failures in maintaining satellite communication equipment[J].Air Traffic Manage,2004,(6):30-31.
[6] 黄仁炳,李黎,张涛.医用直线加速器运行曲线分析[J].医疗装备,2003,16(9):188-189.
Huang RB,Li L,Zhang T.Analysis of the operation curve of medical linear accelerator[J].Med Equip,2003,16(9):188-189.
[7] 全力,文海燕.医用直线加速器机房温度与湿度控制[J].北京生物医学工程,2013,32(6):655-656.10.3969/j.issn.1002-3208.2013.06.19.
Quan L,Wen HY.Temperature and humidity control of medical linear accelerator room[J].Beijing Biomed Engi,2013,32(6):655-656.10.3969/j.issn.1002-3208.2013.06.19.
[8] 李贤富,罗玉军,谭榜宪,等.BJ-6B加速器维修保养回顾分析[J].中华放射肿瘤学杂志,2010,19(6):555-558.10.3760/cma.j.issn.1004-4221.2010.06.022.
Li XF,Luo YJ,Tan BX,et al. Retrospective analysis on the maintenance of BJ-6B accelerator[J].Chin J Radiat Oncol,2010,19(6):555-558.10.3760/cma.j.issn.1004-4221.2010.06.022.
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