LARP LARP Document 1099-v2

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Second-Generation Coil Design of the Nb3Sn low-beta Quadrupole for the High Luminosity LHC

Document #:
Document type:
Submitted by:
Giorgio Ambrosio
Updated by:
Giorgio Ambrosio
Document Created:
23 Dec 2015, 16:44
Contents Revised:
01 Mar 2016, 12:15
DB Info Revised:
01 Mar 2016, 12:15
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23 Dec 2015, 16:44
As part of the Large Hadron Collider Luminosity upgrade (HiLumi-LHC) program, the US LARP collaboration and CERN are working together to design and build a 150 mm aperture Nb3Sn quadrupole for the LHC interaction regions. A first series of 1.5 m long coils were fabricated and assembled in
a first short model. A detailed visual inspection was carried out to investigate cable dimensional changes during heat treatment and the position of the windings in the coil straight section and in the end region. The analyses allow identifying a set of design changes which, combined with a fine tune of the cable geometry and a field quality optimization, were implemented in a new, second-generation, coil design. In this paper we review the main characteristics of the first generation coils, describe the modification in coil lay-out, and discuss their impact on parts design and magnet analysis.
Files in Document:
  • pdf (Susana_2nd_Generation_Coil_Design_accepted.pdf, 1.5 MB)
Associated with Events:
MT24 held from 18 Oct 2015 to 23 Oct 2015 in Seoul, Korea
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