DocumentCode :
1455525
Title :
Impact of Coil Compaction on 
LARP HQ Magnet
Author :
Felice, H. ; Ambrosio, G. ; Anerella, M.D. ; Bocian, D. ; Bossert, R. ; Caspi, S. ; Collins, B. ; Cheng, Daizhan ; Chlachidze, G. ; Dietderich, D.R. ; Ferracin, P. ; Godeke, A. ; Ghosh, A. ; Hafalia, A.R. ; Joseph, J.M. ; Krishnan, J. ; Marchevsky, M. ; S
Author_Institution :
Lawrence Berkeley Nat. Lab., Berkeley, CA, USA
Volume :
22
Issue :
3
fYear :
2012
fDate :
6/1/2012 12:00:00 AM
Firstpage :
4001904
Lastpage :
4001904
Abstract :
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.
Keywords :
accelerator magnets; conductors (electric); hadrons; magnetic superconductors; niobium alloys; research and development; superconducting coils; superconducting magnets; tin alloys; HiLumi-LHC; IR quadrupole magnet; LARP HQ magnet; Nb3Sn; R&D program; US LARP program; US LHC accelerator research program; coil compaction impact; conductor peak field; high luminosity upgrade; large hadron collider; magnetic flux density 15 T; maximum short-sample performance; quadrupole magnet; research & development program; short sample gradient; size 1 m; size 120 mm; temperature 1.9 K; temperature 4.4 K; Cable insulation; Coils; Conductors; Fabrication; Niobium-tin; Superconducting magnets; ${hbox {Nb}}_{3}{hbox {Sn}}$ ${hbox {Nb}}_{3}{hbox {Sn}}$
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2012.2183843
Filename :
6156746
Link To Document :
