| Title |
Development of Superconducting RF Double Spoke Cavity at IHEP |
| Authors |
- Q. Zhou, F.S. He, W.M. Pan
IHEP, Beijing, People’s Republic of China
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| Abstract |
The China Spallation Neutron Source (CSNS) is de-signed to produce spallation neutrons. CSNS upgrade is planned to increase beam power by inserting a SRF linac after drift tube linac (DTL). IHEP is developing a 325MHz double spoke cavity at ¿0 of 0.5 for the CSNS SRF linac. The cavity shape was optimized to minimize Ep/Ea while keeping Bp/Ep reasonably low. Meanwhile, mechanical design was applied to check stress, Lorentz force detuning and microphonic effects, and to minimize pressure sensitivity. A new RF coupling scheme was pro-posed to avoid electrons hitting directly on ceramic win-dow. After fabrication and post processing of cavity, the cavity reached Bp of 120mT at E_{acc} = 13.8MV/m and Q₀ = 1.72·10¹⁰ under vertical test at 2K.
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| Paper |
download THP089.PDF [2.327 MB / 6 pages] |
| Poster |
download THP089_POSTER.PDF [2.176 MB] |
| Export |
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| Conference |
SRF2019 |
| Series |
International Conference on RF Superconductivity (19th) |
| Location |
Dresden, Germany |
| Date |
30 June-05 July 2019 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Peter Michel (HZDR, Dresden, Germany); André Arnold (HZDR, Dresden, Germany); Volker RW Schaa (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-211-0 |
| Online ISSN |
"" |
| Received |
22 June 2019 |
| Accepted |
30 June 2019 |
| Issue Date |
14 August 2019 |
| DOI |
doi:10.18429/JACoW-SRF2019-THP089 |
| Pages |
1114-1119 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
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