Impact of Coil Compaction on LARP HQ Magnet

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In the past two years the US LARP program carried out five tests on a quadrupole magnet aimed at the high luminosity upgrade of Large Hadron Collider (HiLumi-LHC). The 1-meter long, 120 mm bore IR quadrupole magnet (HQ) with a short sample gradient of 219 T/m at 1.9 K and a conductor peak field of 15 T is part of the US LHC Accelerator Research Program (LARP). In a series of tests, carried out at 4.4 K, the magnet reached a maximum “short-sample” performance of 86%. The tests exposed several shortcomings that are now being addressed in a Research & Development program. This paper summarizes the magnet test results, reveals findings, R&D actions and future improvements.

Published in:
Applied Superconductivity, IEEE Transactions on (Volume:22 , Issue: 3 )

Date of Publication: June 2012

Page(s):: 4001904
ISSN :: 1051-8223
INSPEC Accession Number:: 12783827
Digital Object Identifier :: 10.1109/TASC.2012.2183843
Product Type:: Journals & Magazines

Date of Publication :: 23 February 2012
Date of Current Version :: 08 June 2012
Issue Date :: June 2012
Sponsored by :: The IEEE Council on Superconductivity

Author(s)

Felice, H.
Lawrence Berkeley Nat. Lab., Berkeley, CA, USA
Ambrosio, G. ; Anerella, M.D. ; Bocian, D. ; Bossert, R. ; Caspi, S. ; Collins, B. ; Cheng, D. ; Chlachidze, G. ; Dietderich, D.R. ; Ferracin, P. ; Godeke, A. ; Ghosh, A. ; Hafalia, A.R. ; Joseph, J.M. ; Krishnan, J. ; Marchevsky, M. ; Sabbi, G. ; Schmalzle, J. ; Wanderer, P. ; Wang, X.R. ; Zlobin, A.