Quench Protection for the MICE Cooling Channel Coupling Magnet

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This paper describes the passive quench protection system selected for the muon ionization cooling experiment (MICE) cooling channel coupling magnet. The MICE coupling magnet will employ two methods of quench protection simultaneously. The most important method of quench protection in the coupling magnet is the subdivision of the coil. Cold diodes and resistors are put across the subdivisions to reduce both the voltage to ground and the hot-spot temperature. The second method of quench protection is quench-back from the mandrel, which speeds up the spread of the normal region within the coils. Combining quench back with coil subdivision will reduce ... continued below

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Guo, Xing Long; Xu, Feng Yu; Wang, Li; Green, Michael A.; Pan, Heng; Wu, Hong et al. August 2, 2008.

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This paper describes the passive quench protection system selected for the muon ionization cooling experiment (MICE) cooling channel coupling magnet. The MICE coupling magnet will employ two methods of quench protection simultaneously. The most important method of quench protection in the coupling magnet is the subdivision of the coil. Cold diodes and resistors are put across the subdivisions to reduce both the voltage to ground and the hot-spot temperature. The second method of quench protection is quench-back from the mandrel, which speeds up the spread of the normal region within the coils. Combining quench back with coil subdivision will reduce the hot spot temperature further. This paper explores the effect on the quench process of the number of coil sub-divisions, the quench propagation velocity within the magnet, and the shunt resistance.

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  • Journal Name: IEEE Transactions on Applied Superconductivity; Journal Volume: 19; Journal Issue: 3; Related Information: Journal Publication Date: June 2009

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  • Report No.: LBNL-1493E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 948447
  • Archival Resource Key: ark:/67531/metadc896860

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  • August 2, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 31, 2016, 12:16 p.m.

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Guo, Xing Long; Xu, Feng Yu; Wang, Li; Green, Michael A.; Pan, Heng; Wu, Hong et al. Quench Protection for the MICE Cooling Channel Coupling Magnet, article, August 2, 2008; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc896860/: accessed September 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.