Speaker
Jingyuan Zhao
(Tsinghua University)
Description
Charged particle bunch excites wakefields in accelerating cavities, and the transverse components of these wakefields can drive beam offsets, degrading emittance and overall beam stability. Since these effects are mainly caused by higher-order-modes (HOMs), effective HOM suppression is critical for stable accelerator operation.
This study introduces a travelling-wave choke-mode cavity chain and evaluates its basic cavity parameters and performance. The principle of HOM suppression using the choke-mode structure is described, and corresponding simulation results are presented. A prototype cavity was also fabricated, and cold tests were carried out to verify the electromagnetic performance of the design.
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Authors
Hongbo Yu
(Tsinghua University)
Hao Zha
(Tsinghua University)
Jiaru Shi
(Tsinghua University)
Huaibi Chen
(Tsinghua University)
Jingyuan Zhao
(Tsinghua University)