JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - May, A.J. AU - Akintola, A.E.T. AU - Bainbridge, A.R. AU - Buckley, R.K. AU - Collier, G. AU - Corlett, P.A. AU - Dumbell, K.D. AU - Ellis, M.J. AU - Hancock, M.D. AU - Hathaway, J. AU - Hitchen, S. AU - Hodgkinson, C. AU - Hornickel, P.C. AU - Hughes, G. AU - Jenkins, C.R. AU - Jones, G. AU - Lowe, M. AU - Mason, D.A. AU - McIntosh, P.A. AU - Middleman, K.J. AU - Miller, G. AU - Moss, A.J. AU - Mutch, J. AU - Oates, A. AU - Pattalwar, N. AU - Pattalwar, S.M. AU - Pendleton, M.D. AU - Smith, P.A. AU - Sollars, P. AU - Wheelhouse, A.E. AU - White, AAJ. AU - Wilde, S. AU - Wilson, J.T.G. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Lesage, Ana ED - Schaa, Volker R.W. TI - Commissioning of the UKRI STFC Daresbury Vertical Test Facility for Jacketed SRF Cavities J2 - Proc. of SRF2021, East Lansing, MI, USA, 28 June-02 July 2021 CY - East Lansing, MI, USA T2 - International Conference on RF Superconductivity T3 - 20 LA - english AB - A novel vertical test facility has been developed at the STFC Daresbury Laboratory. The VTF is designed to test 3 jacketed SRF cavities in a horizontal configuration in a single cool-down run at 2 K. Cavities were tested at low power levels for HOMs and passband modes, and Q vs E field measurements at high power levels. The specification requires an unloaded Q of 5·10⁹ at a field gradient of 19.9 MV/m. The cavities are cooled with superfluid helium filled into their individual helium jackets. This reduces the liquid helium consumption by more than 70% in comparison with the conventional facilities operational elsewhere. The facility will be used to conduct a 2-year program to qualify 84 high-beta SRF cavities for the European Spallation Source as part of the UK’s in-kind contribution. This paper reports on the commissioning program, along with a detailed discussion of the RF and cryogenic operations and performance of the facility. PB - JACoW Publishing CP - Geneva, Switzerland SP - 308 EP - 312 KW - cavity KW - SRF KW - cryogenics KW - MMI KW - operation DA - 2022/10 PY - 2022 SN - 2673-5504 SN - 978-3-95450-233-2 DO - doi:10.18429/JACoW-SRF2021-MOPFAV002 UR - https://jacow.org/srf2021/papers/mopfav002.pdf ER -