Abstract
In 1992, the liquid-helium cooling capacity installed at CERN was nearly tripled, passing from 6.8 to 19.7 kW/4.5 K (entropy equivalent*). Further tripling is expected in 1993. While the 6.8 kW available in 1991 were produced by 14 plants of moderate size (500 W/4.5 K average), two of the four plants added in 1992 have unit capacities of 6 kW/4.5 K. Four plants of 12 kW/4.5 K, upgradable to 18 kW/4.5 K in a later phase, are presently being installed. Most of the smaller plants are associated with particle physics experiments, cooling superconducting magnets of particle detectors and high-gradient focusing magnets of colliding-beam experiments. Six plants provide liquid helium for development laboratories and test facilities. The recently acquired multi-kW plants will be integral parts of the collider itself. Their present function is to cool superconducting RF cavities designed to increase the beam energy of the Large Electron Positron collider LEP from 50 to above 90 GeV. In the future, the same and additional plants will be available for the cooling of the superconducting magnet ring of the planned Large Hadron Collider LHC. To this end, they will be equipped with complementary 1.8 K final stages.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
M. Morpurgo, The design of the superconducting magnet for the OMEGA Project, Particle Accelerators vol. 1, p. 255 (1970).
A. J. Steel, S. Bruzzi, M.E. Clarke, A 300 W, 1.8 K refrigerator and distribution system for the CERN superconducting RF particle separator, Proceedings ICEC6, Grenoble, p. 58 (1976).
H. Laeger, Ph. Lebrun, The helium cryogenic system for the superconducting high-luminosity insertion at the CERN-ISR, Adv. Cryo. Eng. 29, p. 359 (1983/1984).
F. Birchler, J.-P. Dauvergne, F. Schmeissner, Large-scale helium refrigeration system for new experimental area at CERN, Advances in Refrigeration at the Lowest Temperatures, issued by International Institute of Refrigeration, p. 93, Paris (1978).
N. Eber, A. Hostettler, K. Kurtcuoglu, A. Senn, The multipurpose helium refrigerators/liquefiers for the new CERN experimental area, Proceedings ICEC7, London, p. 635 (1978).
F. Haug, D. Hagedorn, L. Oberli, Cryogenics for the 1.8 K test station for 10 Tesla superconducting magnet models, Proceedings ICEC12, Southampton (1988).
J.P Dauvergne, M. Firth, A. Juillerat, Ph. Lebrun, J.M. Rieubland, Helium cryogenics at the LEP experimental areas, Adv. Cryo. Eng., vol. 35, Plenum Press, New York (1990).
G. Passardi, N. Delruelle, A. Juillerat, J. Tischhauser, Long-term operational experience and upgrade of the cryogenic system for the superconducting cavities in the CERN SPS accelerator, Proceedings ICEC14, Kiev, 1992, published in Cryogenics 32, p. 146 (1992).
C. Wyss, Progress of the LEP energy upgrade project, Proceedings of the 1993 Particle Accelerator Conference, Washington D.C. (1993).
D. Güsewell, M. Barranco-Luque, S. Claudet, W.K.Erdt, P. Frandsen, Ph. Gayet, J. Schmid, N. Solheim, Ch. Titcomb, G. Winkler, Cryogenics for the LEP200 superconducting cavities at CERN, Proceedings of the 1993 Particle Accelerator Conference, Washington D.C. (1993).
C. Arnaud, M. Barranco-Luque, G. Cavallari, S. Claudet, J.P. Dauvergne, W.K. Erdt, A. Guiard-Marigny, Ph. Gayet, D. Gusewell, F. Haug, J. Schmid, Ch. Titcomb, G. Winkler, C. Wyss, CERN, Cryogenic test station for the niobium/copper resonators of CERN, paper to be presented at this conference
V. Benda, Ph. Lebrun, F. Momal, R. Saban, V. Sergo, L. Tavian, B. Vullierme, Cryogenic infrastructure for superfiuid helium testing of LHC prototype superconducting magnets, paper to be presented at this conference
G.M. Gistau, M. Bonneton, A 6 kW at 4.5 K helium refrigerator for CERN’s cryogenic test station, paper to be presented at this conference.
K. Kurtcuoglu, K. Loehlein, U. Wagner, B. Ziegler; W.K. Erdt, P.K. Frandsen, D. Güsewell, N. Solheim, G. Winkler, Plant performance of the high efficient 6 kW helium refrigerator for the LEP200 project at CERN, paper to be presented at this conference
The LHC Study Group, Design study of the Large Hadron Collider: A multiparticle collider in the LEP tunnel, CERN 91-03 (1991).
G. Brianti on behalf of the LHC Machine Group, LHC progress and status, Proceedings of the 1993 Particle Accelerator Conference, Washington D.C. (1993).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1994 Springer Science+Business Media New York
About this chapter
Cite this chapter
Dauvergne, JP. et al. (1994). Application of Liquid-Helium Cryoplants at CERN. In: Kittel, P. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 39. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-2522-6_65
Download citation
DOI: https://doi.org/10.1007/978-1-4615-2522-6_65
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-6074-2
Online ISBN: 978-1-4615-2522-6
eBook Packages: Springer Book Archive