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Design of Current Leads for the MICE Coupling Magnet.

DE2008938525

Publication Date	2008
Personal Author	Wang, L.; Li, L. K.; Xu, F. Y.; Lui, X. L.; Jia, L. X.
Page Count	5
Abstract	A pair of superconducting coupling magnets will be part of 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 4.2K. In order to reduce the heat leak to the 4.2K cold mass from 300 K, a pair of current leads composed of conventional copper leads and high temperature superconductor (HTS) leads will be used to supply current to the magnet. This paper presents the optimization of the 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 has been calculated and effects of the magnetic field on the performance of the HTS leads has also been analyzed.
Keywords	Superconducting magnets Muons Ionization Cooling Cryocoolers Design Copper High temperature Semiconductors Optimization Heat transfer Magnetic fields Simulation
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Berkeley National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200907
Contract Number	DE-AC02-05CH11231

Design of Current Leads for the MICE Coupling Magnet.

Design of Current Leads for the MICE Coupling Magnet.
DE2008938525

Publication Date	2008
Personal Author	Wang, L.; Li, L. K.; Xu, F. Y.; Lui, X. L.; Jia, L. X.
Page Count	5
Abstract	A pair of superconducting coupling magnets will be part of 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 4.2K. In order to reduce the heat leak to the 4.2K cold mass from 300 K, a pair of current leads composed of conventional copper leads and high temperature superconductor (HTS) leads will be used to supply current to the magnet. This paper presents the optimization of the 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 has been calculated and effects of the magnetic field on the performance of the HTS leads has also been analyzed.
Keywords	Superconducting magnets Muons Ionization Cooling Cryocoolers Design Copper High temperature Semiconductors Optimization Heat transfer Magnetic fields Simulation
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Berkeley National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200907
Contract Number	DE-AC02-05CH11231