SSC边耦合加速腔的调谐  

TUNING COUPLED -CAVITY LINAC RF CAVITIES FOR SSC

作　　者：张沐天[1] 金清寿[1] 钟世才 周立农[1] 丁义[1] 许文武[1] 

机构地区：[1]中国科学院高能物理研究所

出　　处：《强激光与粒子束》1995年第3期427-432,共6页High Power Laser and Particle Beams

摘　　要：为缩短边耦合加速腔腔片制造周期，需用部分腔片确定Ｔａｕｋ的π／２模式频率，采用整腔结尾，调节端腔频率使相邻耦合腔输出最小的方法，得到比较准确的结果。焊后调谐，耦合腔频率用近似方法调节，加速腔则用相对精确的方法调谐。用桥耦合器连接Ｔａｎｋ后，腔数增加引起π／２模式频率下降，桥耦合器的频率要调高于设计值。AbstractWhen we tuned Coupled-Cavity Linac tanks for SSC,we used two tunable aluminum endcells and eight segments to determine the frequency of π/2 mode of a tank.Tuned the aluminumend cells until the RF signals pick up from the side coupled cavities neighboring end acceleratingcavities became minimum. Thef_(π/2) of this cavity chain is regarded as the f_(π/2)of the tank.Afterbeing brazed,the coupled cavities are approximately tuned and the accelerating cavities areaccurately tuned.When tanks are connected with bridge couplers,f_(π/2)of the module is lower thanthat of designed.RF tuning procedure is discussed and typical results are given in this thesis.

关 键 词：直线加速器 边耦合腔 耦合器 加速腔 

分 类 号：TL53[核科学技术—核技术及应用]