西门子PRIMUS-E直线加速器多页光栅无联锁报警故障处理

Treatment of Multi Leaf Collimator's Fault Without Interlocks on Siemens PRIMUS-E Linear Accelerator

本文通过分析西门子直线加速器运行过程中多次出现的多叶光栅(Multi Leaf Collimator,MLC)无联锁故障,并总结相应的处理过程,希望能为广大同行提供借鉴经验。在发生MLC无联锁故障现象时,通过加速控制台以及MLC控制机柜均无法使页片恢复正常,最终对故障页片所对应的控制组件进行部分或全套更换。经过数个月的运行,已更换过控制组件的页片均运行正常,针对此类故障现象,选择控制组件部份更换,能够降低维修成本,但对维修人员技能要求也相应较高。

This paper analyzed the failures of multi leaf collimator(MLC)without interlocks during the operation of Siemens linear accelerator,and summarized the processing procedure,so as to provide reference for our colleagues.When the failures without interlocks happened in MLC,the leaves could not run normally through the accelerator console and MLC cabinet.Finally,partly or completely control components of the failure leaves were replaced.After months of operation,the leaves whose control components were replaced ran properly.In view of such failures,the selection of control component replacement can reduce the maintenance cost,but the maintenance personnel skills are also relatively high.