First high gradient test results of a dressed 325 MHz superconducting single spoke resonator at Fermilab
Abstract
A new superconducting RF cavity test facility has been commissioned at Fermilab in conjunction with first tests of a 325 MHz, {\beta} = 0.22 superconducting single-spoke cavity dressed with a helium jacket and prototype tuner. The facility is described and results of full gradient, CW cavity tests with a high Qext drive coupler are reported. Sensitivities to Q disease and externally applied magnetic fields were investigated. Results are compared to bare cavity results obtained prior to hydrogen degassing and welding into the helium jacket.
- Publication:
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arXiv e-prints
- Pub Date:
- February 2012
- DOI:
- 10.48550/arXiv.1202.1551
- arXiv:
- arXiv:1202.1551
- Bibcode:
- 2012arXiv1202.1551W
- Keywords:
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- Physics - Accelerator Physics
- E-Print:
- 3 pp. 25th International Linear Accelerator Conference (LINAC10) 12-17 Sep 2010: Tsukuba, Japan