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Spiral 2 cryogenic system overview: Design, construction and performance test

Abstract : The new particle accelerator project Spiral 2 at GANIL (“Grand Accélérateur d’Ions Lourds, i.e. National Large Heavy Ion Accelerator) in Caen (France) is a very large installation, intended to serve fundamental research in nuclear physics. The heart of the future machine features a superconductor linear accelerator, delivering a beam until 20Mev/A, which are then used to bombard a matter target. The resulting reactions, such as fission, transfer, fusion, etc. will generate billions of exotic nuclei. To achieve acceleration of the beam, 26 cavities which are placed inside cryomodules at helium cryogenic temperature will be used. AL-AT (Air Liquide Advanced Technologies) takes part to the project by supplying cryogenic plant. The plant includes the liquefier associated to its compressor station, a large dewar, a storage tank for helium gas and transfer lines. In addition, a helium recovery system composed of recovery compressor, high pressure storage and external purifier has been supplied. Customized HELIAL LF has been designed, manufactured and tested by AL-AT to match the refrigeration power need for the Spiral 2 project which is around 1300 W equivalent at 4.5 K.
Keywords : Refrigeration Helium
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Conference papers
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Contributor : Michel Lion <>
Submitted on : Tuesday, May 5, 2015 - 4:35:51 PM
Last modification on : Wednesday, September 16, 2020 - 4:08:49 PM




C. Deschildre, J. Bernhardt, G. Flavien, S. Crispel, M. Souli, et al.. Spiral 2 cryogenic system overview: Design, construction and performance test. Advances In Cryogenic Engineering - Transactions of the Cryogenic Engineering Conference - CEC, Jun 2013, Anchorage, United States. pp.976-981, ⟨10.1063/1.4860811⟩. ⟨in2p3-01148917⟩



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