北京大学光阴极注入器3+1/2超导腔机械性能  

Mechanical properties of 3+1/2 cavity of PKU photo-injector

作　　者：朱凤[1] 全胜文[1] 徐文灿[1] 赵夔[1] 

机构地区：[1]北京大学重离子物理研究所,北京100871

出　　处：《强激光与粒子束》2007年第8期1361-1364,共4页High Power Laser and Particle Beams

基　　金：国家973计划项目资助课题

摘　　要：介绍了北京大学光阴极注入器的核心部件3+1/2超导腔的机械性能的设计,通过ANSYS和SUPERFISH程序优化加强筋的个数和位置,解决了超导腔在脉冲条件下由于洛仑兹力引起的超导腔失谐以及当超导腔进行低温调谐时场平滑度变化过大的问题,同时针对复杂超导腔结构进行了低温调谐结构的设计。The mechanical properties of the main part of PKU photo-injector （3＋1/2 cavity） are introduced. By optimizing the number and position of the stiff rings of the cavity with ANSYS and SUPERFISH code, the Lorentz force detuning problem when the cavity worked at pulsed mode and the ＂flat＂ field profile problem when the cavity was tuned at tow temperature were solved. Besides, a tuner with a room temperature motor and a gear box for the cavity to work at the right frequency under 2 K circumstance was designed.

关 键 词：超导腔 光阴极注入器 洛仑兹力失谐 调谐结构 

分 类 号：O572.211[理学—粒子物理与原子核物理] TN011[理学—物理]