Document Type

Conference Paper

Publication Date


Publication Title

Proceedings of the 17th International Conference on RF Superconductivity



Conference Name

17th International Conference on RF Superconductivity, Whistler, British Columbia, Canada


Three proof-of-principle compact crab cavity designs have been fabricated in bulk niobium and cold tested at their home labs, as a first validation step towards the High Luminosity LHC project. As a cross check, all three bare cavities have been retested at CERN, in order to cross check their performance, and cross-calibrate the CERN SRF cold test facilities. While achievable transverse deflecting voltage is the key performance indicator, secondary performance aspects derived from multiple cavity monitoring systems are also discussed. Temperature mapping profiles, quench detection, material properties, and trapped magnetic flux effects have been assessed, and the influence on performance discussed. The significant effort invested in developing expertise in preparation and testing of these crab cavities has already been fruitful for all partners, and more is to come within this ongoing program.


Published under a Creative Commons Attribution 3.0 unported license.

Original Publication Citation

Hernández-Chahín, K., Burt, G., Christophe, J., De Silva, S., Macpherson, A., Navarro-Tapia, M.... & Verdú-Andrés, S. (2015). Performance Evaluation of HL-LHC Crab Cavity Prototypes in a CERN Vertical Test Cryostat. In Proceedings of the17th International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 (pp. 1210-1214).


0000-0002-4809-9439 (De Silva)