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TY - CONF AU - Thermeau, J.P. AU - Gajewski, K.J. AU - Hermansson, L. AU - Junquera, T. AU - Kochebina, O. AU - Ruber, R.J.M.Y. AU - Santiago Kern, R. ED - Michel, Peter ED - Arnold, André ED - Schaa, Volker RW TI - The First Tests on Vertical Cryostat GERSEMI at FREIA Facility 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 - A new vertical cryostat, called Gersemi, installed at FREIA Laboratory at Uppsala University, Sweden, is designed to test superconducting magnets and radio-frequency cavities and operates at temperatures between 1.8 K and 4.2 K. Two different inserts can be used to test different superconducting equipment: a helium saturated bath insert for cavities without a helium vessel and a λ-plate insert for magnet testing in superfluid helium pressurized bath. The cold vessel cryostat has an internal diameter of 1.1 m and a useful height of 3.5 m. A valve box supplies the cryostat with the cryogens (LN2, LHe, SHe) and is linked to a gas reheater. The last one is connected to a helium recovery circuit and to a helium pumping system (4.5 g/s at 16 mbar). The Gersemi vertical cryostat is a part of FREIA cryogenic facility which also contains a helium liquefier and a horizontal cryostat inside of a bunker allowing the test of superconducting cavity cryomodules. The first results of the cryogenic tests on this equipment are reported. PB - JACoW Publishing CP - Geneva, Switzerland SP - 921 EP - 924 KW - controls KW - cryogenics KW - operation KW - MMI KW - vacuum DA - 2019/08 PY - 2019 SN - "" SN - 978-3-95450-211-0 DO - doi:10.18429/JACoW-SRF2019-THP034 UR - http://jacow.org/srf2019/papers/thp034.pdf ER -