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TY - CONF AU - Pattalwar, S.M. AU - Buckley, R.K. AU - Hornickel, P.C. AU - May, A.J. AU - Middleman, K.J. AU - Oates, A. AU - Pendleton, M.D. AU - Pizzol, P. AU - Smith, P.A. AU - Weston, T.M. AU - Wheelhouse, A.E. AU - Wilde, S. AU - Wilson, J.T.G. ED - Michel, Peter ED - Arnold, André ED - Schaa, Volker RW TI - Cryogenics Performance of the Vertical Cryostat for Qualifying ESS-SRF High Beta Cavities J2 - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019 CY - Dresden, Germany T2 - International Conference on RF Superconductivity T3 - 19 LA - english AB - An innovative vertical cryostat has been developed and commissioned at STFC Daresbury Laboratory for qualifying the high-beta SRF cavities for the ESS (European Spallation Source). The cryostat is designed to test 3 dressed cavities in horizontal configuration in one cold run at 2K. The cavities are cooled to 2K with superfluid liquid helium filled into individual helium jackets of the cavities. This reduces the liquid helium consumption by more than 70% in comparison with the conventional vertical tests. The paper describes the cryogenic system and its performance with detail discussions on the initial results. PB - JACoW Publishing CP - Geneva, Switzerland SP - 895 EP - 899 KW - cavity KW - SRF KW - cryogenics KW - operation KW - MMI DA - 2019/08 PY - 2019 SN - 978-3-95450-211-0 DO - doi:10.18429/JACoW-SRF2019-THP027 UR - http://jacow.org/srf2019/papers/thp027.pdf ER -