| Title |
HOM Coupler Design for CEPC Cavities |
| Authors |
- H.J. Zheng, F. Meng, J.Y. Zhai
IHEP, Beijing, People's Republic of China
|
| Abstract |
In this paper，it will be presented the higher order mode (HOM) coupler design for the Circular Electron-Positron Collider (CEPC) 650 MHz 2-cell cavity. The higher order modes excited by the intense beam bunches must be damped to avoid additional cryogenic loss and multi-bunch instabilities. To keep the beam stable, the impedance budget and the HOM damping requirement are given. A double notch coaxial HOM coupler, which will be mounted on the beam pipe, is planned to extract the HOM power below the cut-off frequency of the beam pipe. This paper summarizes the RF design of the HOM coupler, tolerance analysis, thermal analysis as well as mechanical structures.
|
| Funding |
This study was supported by National Key Programme for S&T Research and Development (Grant NO.: 2016YFA0400400) |
| Paper |
download MOPB028.PDF [1.538 MB / 5 pages] |
| Export |
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※ EndNote |
| Conference |
SRF2017, Lanzhou, China |
| Series |
International Conference on RF Superconductivity (18th) |
| Proceedings |
Link to full SRF2017 Proccedings |
| Session |
Poster Session |
| Date |
17-Jul-17 14:00–17:00 |
| Main Classification |
Projects/Facilities |
| Sub Classification |
Progress |
| Keywords |
ion, HOM, cavity, damping, collider |
| Publisher |
JACoW, Geneva, Switzerland |
| Editors |
Volker RW Schaa (GSI, Darmstadt, Germany); Yuan He (IMP, Lanzhou, China); Lu Li (IMP, Lanzhou, China); Ning Zhao (IHEP, Beijing, China) |
| ISBN |
978-3-95450-191-5 |
| Published |
January 2018 |
| Copyright |
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