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Design optimization of 600 A-13 kA current leads for the Large Hadron Collider project at CERN

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The requirements of the Large Hadron Collider project at CERN for high-temperature superconducting (HTS) current leads have been widely publicized. CERN require hybrid current leads of resistive and HTS materials with current ratings of 600 A, 6 kA and 13 kA. BICC General Superconductors, in collaboration with the University of Southampton, have developed and manufactured prototype current leads for the Large Hadron Collider project. The resistive section consists of a phosphorus de-oxidized copper conductor and heat exchanger and the HTS section is constructed from BICC General's (Pb, Bi)2223 tapes with a reduced thermal conductivity Ag alloy sheath. We present the results of the materials optimization studies for the resistive and the HTS sections. Some results of the acceptance tests at CERN will be discussed.

Document Type: Miscellaneous

Affiliations: 1: BICC General Cables (UK) Ltd, Oak Road, Wrexham LL12 8NZ, UK 2: Institute of Cryogenics, University of Southampton, Southampton SO17 1BJ, UK 3: LHC Division, CERN, CH-1211 Geneva 23, Switzerland

Publication date: January 1, 2001

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