Author: Klier, J.
Paper Title Page
WEPRI108 Liquid Helium Technologies at Cryogenic Complex of the Heavy Ion Collider NICA 2752
 
  • Iu.A. Mitrofanova, N.N. Agapov, N. Emelianov, H.G. Khodzhibagiyan, D. Nikiforov
    JINR, Dubna, Moscow Region, Russia
  • R. Herzog, A. Kade, J. Klier
    ILK Dresden, Dresden, Germany
 
  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.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-WEPRI108  
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