1+1/2 Cell超导加速腔的本征高阶模场分布研究  

Study on HOMs in 1+1/2 Cell Superconducting Cavity

作　　者：王桂梅[1] 吴文忠[1] 鲁向阳[1] 张保澄[1] 全胜文[1] 朱凤[1] 林林[1] 焦飞[1] 赵夔[1] 

机构地区：[1]北京大学重离子物理研究所射频超导加速器实验室,北京100871

出　　处：《高能物理与核物理》2005年第11期1077-1080,共4页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金(10276001)~~

摘　　要：为实现高平均流强加速,需要有效地消除超导加速腔中的高阶模场。为研制有效的高阶模耦合器,本文对北京大学DC-SC光阴极超导注入器的核心部件——1+1/2 cell超导加速腔中高阶模场进行了分析研究,用HFSS程序计算给出前31个高阶模场参数,与实验测量较为符合。HFSS计算与Superfish计算结果比较符合很好,验证用HFSS计算可靠,为以后超导腔的升级研究提供有效的手段。For achieving high average current electron beams, we need to eliminate charge-induced fields in superconducting cavity. In order to manufacture effective high order modes （HOM） coupler, we study the HOM that are excited possibly in the Peking University 1＋1/2 Cell superconducting cavity. With Code HFSS, we have calculated 31 HOMs＇ parameters, which fit the experimental data very well. We also compared the parameters to the results calculated from Superfish code, and we got a good match, proving HFSS is a reasonable simulation code for superconducting cavity.

关 键 词：高平均流强 高阶模 超导加速腔 HFSS 分布研究 模场 CELL 程序计算 本征 模耦合器 

分 类 号：TL503.1[核科学技术—核技术及应用]