Expected Advantages and Disadvantages of High-Tc Current Leads for the Large Hadron Collider Orbit Correctors

  • Amalia Ballarino
  • Albert Ijspeert
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 39)


The Large Hadron Collider (LHC) will be equipped with some 800 superconducting magnets for the correction of the orbit of the particle beams. Each of these magnets will be individually powered and needs a pair of current leads to the ambient temperature. To minimise the heat load due to these leads, a very low operational current has been chosen of about 25 A. A theoretical study has been made of the advantages and disadvantages of leads partly made of high-Tc superconducting materials. The paper gives the results of these calculations comparing normal leads with different current lead options using high-Tc superconducting materials. The results are also immediately applicable to leads for any other current.


Large Hadron Collider Current Lead Cooling Power Heat Leak Helium Bath 
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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • Amalia Ballarino
    • 1
    • 2
  • Albert Ijspeert
    • 1
  1. 1.CERNGeneva 23Switzerland
  2. 2.CERN and Politecnico di TorinoItaly

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