Abstract:The UDRS interlocking fault is a common dose interlocking of Varian high-energy linear accelerator. Due to the complexity of the system, this fault has brought challenges to the engineers for a long time. Hence, an effective solution is urgently required. In this article, the circuit and principle for UFRS interlocking fault for Varian CLINAC-IX linear accelerator were explicitly analyzed and the maintenance methods were summarized. The management methods of such rare fault were shared, aiming to provide reference for subsequent management of similar interlocking faults.
Zhang Qingzhao,Liu Lingxiang,Yi Lan. Principle and troubleshooting for the irregular case of UDRS interlock for Varian CLINAC-IX linear accelerator[J]. Chinese Journal of Radiation Oncology, 2021, 30(3): 294-296.
[1] 杨绍洲,陈龙华,张树军,等.医用电子直线加速器[M].北京:人民军医出版社,2004:162. Yang SZ,Chen LH,Zhang SJ,et al.Medical linear accelerator[M].Beijing:People′s Military Medical Press,2004:162. [2] 赵永军.Vavian Clinac Ⅸ加速器低剂量率特殊故障检修实例[J].医疗装备,2014,27(9):93.DOI:10.3969/j.issn.1002-2376.2014.09.053. Zhao YJ.Troubleshooting of Vavian Clinac Ⅸ linear accelerator UDRS interlock[J].Med Equip,2014,27(9):93.DOI:10.3969/j.issn.1002-2376.2014.09.053. [3] 黄载全.医用电子直线加速器氢闸流管结构原理和维护保养[J].医疗装备,2010,23(7):52-54.DOI:10.3969/j.issn.1002-2376.2010.07.028. Huang ZQ.Structure principle and maintenance of hydrogen thyratron in medical linear accelerator[J].Med Equip,2010,23(7):52-54.DOI:10.3969/j.issn.1002-2376.2010.07.028. [4] 宋文立.23EX型医用直线加速器UDRS连锁原理及处理[J].医疗装备,2018,31(3):159-160.DOI:10.3969/j.issn.1002-2376.2018.03.099. Song WL.Theory and trouble shooting of Vavian Clinac 23EX linear accelerator UDRS interlock[J].Med Equip,2018,31(3):159-160.DOI:10.3969/j.issn.1002-2376.2018.03.099. [5] 卢联中,余辉,王琳婧,等.Varian Clinac 23EX 常见剂量有关连锁总结[J].医疗装备,2017,30(7):44-45.DOI:10.3969/j.issn.1002-2376.2017.07.024. Lu LZ,Yu H,Wang LJ,et al.The summarization and analysis of common interlock in Varian Clinac 23EX[J].Med Equip,2017,3(7):44-45.DOI:10.3969/j.issn.1002-2376.2017.07.024. [6] 徐升,黄金汉,杨群堂,等.瓦里安2300C/D型医用直线加速器伺服剂量率联锁的检修[J].中国医疗设备,2017,32(7):88-90.DOI:10.3969/j.issn.1674-1633.2017.07.024. Xu S,Huang JH,Yang QT,et al.Troubleshooting of Varian 2300C/D medical linear accelerator servo dose rate interlock[J].Chin Med Device,2017,32(7):88-90.DOI:10.3969/j.issn.1674-1633.2017.07.024. [7] 蒋俭,钱龙,杨波.瓦里安2300C/D 医用直线加速器FOIL&CARR联锁故障维修一例[J].中国医疗设备,2009,24(12):101.DOI:10.3969/j.issn.1674-1633.2009.12.040. Jiang J,Qian L,Yang B.Troubleshooting of FOIL&CARR interlock for Varian 2300C/D medical linear accelerator[J].Chin Med Device,2009,24(12):101.DOI:10.3969/j.issn.1674-1633.2009.12.040. [8] 林治学,王忠文,谭力.Varian 2300C/D直线加速器UDRS联锁维修一例[J].中华放射肿瘤学杂志,2015,24(3):353.DOI:10.3760/cma.j.issn.1004-4221.2015.03.030. Lin ZX,Wang ZW,Tan L.Troubleshooting of UDRS interlock for Varian 2300C/D medical linear accelerator[J].Chin J Radiat Oncol,2015,24(3):353.DOI:10.3760/cma.j.issn.1004-4221.2015.03.030. [9] 黄彬.瓦里安23EX医用直线加速器UDRS的连锁故障[J].医疗装备,2017,30(11):48.DOI:10.3969/j.issn.1002-2376.2017.11.028. Huang B.Interlock for Varian 23EX medical electron linear accelerator[J].Med Equip,2017,30(11):48.DOI:10.3969/j.issn.1002-2376.2017.11.028. [10] 李陆军,余海坤.瓦里安23EX直线加速器UDRS联锁故障检修一例[J].中华放射肿瘤学杂志,2013,22(5):373.DOI:10.3760/cma.j.issn.1004-4221.2013.05.009. Li LJ,Yu HK.Troubleshooting of UDRS interlock for Varian 23EX medical linear accelerator[J].Chin J Radiat Oncol,2013,22(5):373.DOI:10.3760/cma.j.issn.1004-4221.2013.05.009.