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Teah, J.

Paper Title Page
MOPEB062 Design and Testing of Cryogenic Systems Dedicated to Neutron Sources 412
 
  • S. Crispel, M. Bonneton
    Air Liquide, Division Techniques Avancées, Sassenage
  • M.F.D. Simon
    F4E, Barcelona
  • J. Teah
    STFC/RAL/ISIS, Chilton, Didcot, Oxon
  • R. Thiering
    ANSTO, Menai, New South Wales
 
 

Thanks to its experience in past projects in the field of neutron sources, Air Liquide DTA was involved in recent years in two major projects : a new Cold Neutron Source (OPAL) at ANSTO, Australia and a Spallation Neutron Source at ISIS, United Kingdom. The OPAL CNS is a liquid deuterium moderated source operating with a cold box with a refrigeration capacity of 5 kW at 25K designed and manufactured by Air Liquide DTA. ISIS Target Station 2 is a liquid hydrogen and solid methane moderated source for which Air Liquide DTA provided two Helium cold boxes (about 600W) operating at 20K derived from the standard Helial product, one customised cryogenic hydrogen loop, and very specific remote dismountable cryogenic transfer lines. These two cryogenic systems were fully commissioned on Air Liquide DTA dedicated test area before delivery to the customers. The purpose of this paper is to give a compared overview of the design and testing of the proposed cryogenic systems for these two projects.