Author: Elias, N.
Paper Title Page
MOPHA009 Commissioning the Control System for Cryomodule Cryogenics Distribution System in Test Stand 2 205
  • E. Asensi Conejero, M. Boros, N. Elias, J. Fydrych, W. Hees, P.L. van Velze
    ESS, Lund, Sweden
  • W. Gaj
    IFJ-PAN, Kraków, Poland
  The European Spallation Source (ESS) is currently under construction in Lund, Sweden. The superconducting section of the linear accelerator consists of three parts; 26 double-spoke cavities gathered in 13 cryomodules, 36 medium beta elliptical cavities gathered in 9 cryomodules and 84 high beta elliptical cavities gathered in 21 cryomodules. The cryomodules have to be tested in a dedicated test facility before installation in the ESS tunnel, Test Stand 2 is dedicated to the tests of the medium beta and high beta elliptical cryomodules for the ESS linear accelerator. In this paper, the authors present the commissioning of the PLC based control system for the cryogenic circuits in the elliptical cavities cryomodules. These circuits allow the circulation of gas Helium at 4.5 K and liquid Helium at 2 K to cool down the niobium cavities and reach the material superconducting state, as well as to keep a thermal shield with gas Helium at 50 K. Cryogenic valves, heaters and different sort of sensors need to be controlled and monitored to operate this system successfully from a Control Room using dedicated Operator Interfaces developed in CS-Studio and following the EPICS architecture.  
poster icon Poster MOPHA009 [1.369 MB]  
DOI • reference for this paper ※  
About • paper received ※ 28 September 2019       paper accepted ※ 08 October 2019       issue date ※ 30 August 2020  
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