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Design of current leads for MICE coupling magnet.

Author(s) : WANG L., LI L. K., WU H., et al.

Summary

A pair of superconducting coupling magnets will be applied to the muon ionization cooling experiment (MICE). They were designed and will be constructed by the Institute of Cryogenics and Superconductivity Technology, Harbin Institute of Technology, in collaboration with Lawrence Berkeley National Laboratory. The coupling magnet is to be cooled by using cryocoolers at 4.2 K. In order to reduce the heat leakage induced to the 4.2 K cold mass from high temperature, a pair of binary current leads composed of conventional copper leads and high temperature superconductor (HTS) leads are to be employed in electrical connection for the magnet. This paper presents the optimization of conventional conduction-cooled metal leads for the coupling magnet. Analyses on heat transfer down the leads using theoretical method and numerical simulation were carried out. The stray magnetic field around the HTS leads was calculated and effects of the magnetic field on the performance of the HTS leads were analyzed.

Details

  • Original title: Design of current leads for MICE coupling magnet.
  • Record ID : 2008-1979
  • Languages: English
  • Source: Cryogenics and refrigeration. Proceedings of ICCR'2008.
  • Publication date: 2008/04/05

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