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TY - CONF AU - Mitrofanova, Iu.A. AU - Agapov, N.N. AU - Emelianov, N. AU - Herzog, R. AU - Kade, A. AU - Khodzhibagiyan, H.G. AU - Klier, J. AU - Nikiforov, D. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - Liquid Helium Technologies at Cryogenic Complex of the Heavy Ion Collider NICA J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - NICA (Nuclotron-based Ion Collider fAcility), presently under construction at JINR, will be, upon its completion, among the most advanced research instruments of the physics community. The facility is aimed at providing collider experiments with heavy ions up to uranium (gold at the beginning stage) with a centre of mass energy up to 11 GeV/u and an average luminosity up to 10²⁷ cm⁻² s^{−1}. The NICA cryogenics includes a large number of technical ideas and solutions never used before. The most significant of these solutions are the fast cycling superconducting magnets, cooling by the two-phase helium flow, an unusually short period of time for cool down till the operating temperature, parallel connection of cooling channels of the magnets, «wet» turbo expanders, screw compressors with the outlet pressure of more than 25 bars and jet pumps for liquid helium. These technical solutions allow one to construct an efficient and reliable cryogenic system of the NICA complex. PB - JACoW CP - Geneva, Switzerland SP - 2752 EP - 2755 KW - cryogenics KW - superconducting-magnet KW - collider KW - booster KW - ion DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-WEPRI108 UR - http://jacow.org/ipac2014/papers/wepri108.pdf ER -