Design and RF test of MEBT buncher cavities for C-ADS Injector II at IMP
Design and RF test of MEBT buncher cavities for C-ADS Injector II at IMP
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DOI：
10.1016/j.nima.2015.07.047
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发表时间：
2015-11
影响因子：
1.4
通讯作者：
Shichun Huang;H. Jia;Haihua Niu;Yuan He;Shenghu Zhang;C. Yuan;Jing Wang;Shengxue Zhang;Wei Chang;P. Zhang;Hongwei Zhao;J. Xia
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文献类型：
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作者：
Shichun Huang;H. Jia;Haihua Niu;Yuan He;Shenghu Zhang;C. Yuan;Jing Wang;Shengxue Zhang;Wei Chang;P. Zhang;Hongwei Zhao;J. Xia
为了将射频四极加速器输出的束流与超导半波谐振器（HWR）直线加速器相匹配，设计了两个室温（RT）双间隙四分之一波谐振器（QWR）聚束器，安装在IMP C-ADS II注入器的中能束流传输线（MEBT）上，两个腔的工作频率均为162.5MHz，其中β=0.067，光束孔径直径为40 mm。在连续波（CW）模式下，这两个腔的有效电压需要达到135 kV。在本文中，射频设计和腔的热分析，沿着与调谐器和耦合器的考虑。实验测得的谐振腔的频率、谐振腔的Rsh/Q 0、Q 0和谐振腔的电压与仿真结果吻合较好。将显示射频测试结果的详细信息，包括腔体的全功率测试。
AbstractsTo match the beam from the Radio Frequency Quadrupole (RFQ) accelerator to the Superconducting Half-wave Resonator (HWR) Linac, two room temperature (RT) double-gap Quarter-wave Resonator (QWR) bunchers are designed to be located in the Medium Energy Beam Transport Line (MEBT) for the C-ADS Injector II at IMP. Both cavities work at 162.5 MHz, withβ=0.067 and a beam aperture diameter of 40 mm. The effective voltage of these two cavities needs to reach 135 kV in Continuous Wave (CW) mode. In this paper, the RF design and thermal analysis of the cavities will be presented, along with the tuners and coupler consideration. The measured frequencies,Rsh/Q0,Q0and voltage of the cavities agree well with the simulation result. Details of the RF test results including the full power tests of the cavities will be shown.