医用回旋加速器射频系统原理及其影响因素的研究  

Research on principles and influence factors of medical cyclotron RF system

作　　者：颜和平[1] 

机构地区：[1]厦门大学附属第一医院闽南PET中心,福建厦门361003

出　　处：《中国医学装备》2013年第7期31-33,共3页China Medical Equipment

摘　　要：目的:通过探究医用回旋加速器射频系统的原理,分析轰击生产核素时射频系统的影响因素,并优化回旋加速器射频的各项指标,提高其稳定性。方法:用MSS维修软件分析判断回旋加速器射频的参数,对回旋加速器的射频系统进行调试。结果:通过调整射频TAU(射频放大单元)的夹圈,降低屏极电流,同时优化射频系统参数,提高回旋加速器的生产效率。结论:回旋加速器射频参数影响因素很多,尤其当Screen电流过高时,会对射频系统产生影响,只有在正常的范围内(60±3)mA才能保证回旋加速器的正常工作。Objective：Through the analysis on principles of medical cyclotron RF system,we analyzed the influence factors in radionuclide bombardment,optimized each parameters of RF system and improved the stability of the system.Methods：We fixed parameters of cyclotron frequency by using MSS maintenance software and debugged the system.Results：We adjusted the TAU clamp to reduce the screen current,and optimized the RF parameters to improve the production efficiency of cyclotron.Conclusion：Many factors affect the cyclotron RF system parameters,especially the high screen current which can affect RF system.It can guarantee the normal running only in the normal range （60±3） mA.

关 键 词：回旋加速器 RF射频 系统调试 

分 类 号：R197.39[医药卫生—卫生事业管理]