| Autor: |
J. Zhu, X. Li, J. Yu, Z. Lu, Y. Liu, S. Chen, W. Long, B. Wu, C. Zhang, S. Liu |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Journal of Instrumentation. 17:P08013 |
| ISSN: |
1748-0221 |
| DOI: |
10.1088/1748-0221/17/08/p08013 |
| Popis: |
In order to meet the requirements of the Southern Advanced Photon Source (SAPS), a slot-coupled π-mode 5-cell copper cavity with higher order mode (HOM) damping was proposed and developed. In this study, we present the optimal design of a 5-cell copper cavity and an investigation of HOM impedances. A prototype of 5-cell copper cavity based on this design was manufactured. The RF characteristics of 5-cell copper cavity have been tested. The results show that a flat accelerating electric field is obtained, with a coupling coefficient of 1.7% and a shunt impedance more than 19.5 MΩ/m. To damp these HOMs with high impedance, two inductive HOM couplers and two capacitive HOM couplers were designed. Finally, the impedances of all the HOMs are below the threshold of coupled-bunch instabilities (CBI) for SAPS. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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