Parasitic modes suppression in CW cold tests of 1.3 GHz 9-cell high Q cavities at IHEP
Abstrak
The CW RF test of 1.3 GHz 9-cell cavity in liquid helium bath at 2 K is a very important key point in the cavity procurement. Some problems can be found through the test, according which to optimized and improve the process of cavity. Recently, Medium temperature (mid-T) furnace bake of 1.3 GHz 9-cell cavities have been carried out at IHEP. Through the proceed of mid-T bake, the quality factor of cavity has been greatly improved. While the excitation of the parasitic modes in the high Q cavities CW cold test has been encountered, which implies an error source for the cavity gradient and quality factor determination. In order to ensure the testing accuracy of superconducting cavity, we have improved the testing system. Finally, the parasitic mode is completely suppressed and the CW RF cold test of high Q cavity is guaranteed.
Topik & Kata Kunci
Penulis (22)
Zhenghui Mi
Feisi He
Weimin Pan
Peng Sha
Jiyuan Zhai
Xuwen Dai
Song Jina
Zhanjun Zhang
Chao Dong
Baiqi Liu
Hui Zhao
Rui Gea
Jianbing Zhao
Zhihui Mu
Lei Du
Liangrui Sun
Liang Zhang
Conglai Yang
Xiaobing Zheng
Haiying Lin
Guangwei Wang
Xiangcong He
Akses Cepat
- Tahun Terbit
- 2021
- Bahasa
- en
- Sumber Database
- arXiv
- Akses
- Open Access ✓