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Title: Field Quality and Fabrication Analysis of HQ02 Reconstructed Nb3Sn Coil Cross Sections

Abstract

The US LHC Accelerator Research Program (LARP) quadrupole HQ02 was designed and fully tested as part of the low-beta quad development for Hi-Lumi LHC. HQ02’s design is well documented with full fabrication accounting along with full field analysis at low and high current. With this history, HQ02 is an excellent test bed for developing a methodology for measuring turn locations from magnet cross sections and comparing with CAD models and measured field. All 4 coils of HQ02 were cut in identical locations along the magnetic length corresponding to magnetic field measurement and coil metrology. A real-time camera and coordinate measuring equipment was used to plot turn corners. Measurements include systematic and random displacements of winding blocks and individual turns along the magnetic length. The range of cable shifts and the field harmonic range along the length are in agreement, although correlating turn locations and measured harmonics in each cross section is challenging.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1343959
Report Number(s):
FERMILAB-PUB-16-345-TD
Journal ID: ISSN 1051-8223; 1512841
DOE Contract Number:
AC02-07CH11359
Resource Type:
Journal Article
Resource Relation:
Journal Name: IEEE Transactions on Applied Superconductivity; Journal Volume: 27; Journal Issue: 4
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Holik, Eddie Frank, Ambrosio, Giorgio, Carbonara, Andrea, Dietderich, Daniel R., Dimarco, Joseph, Pong, Ian, Sabbi, GianLuca, Santini, Carlo, Schmalzle, Jesse, and Wang, Xiaorong. Field Quality and Fabrication Analysis of HQ02 Reconstructed Nb3Sn Coil Cross Sections. United States: N. p., 2017. Web. doi:10.1109/TASC.2017.2655629.
Holik, Eddie Frank, Ambrosio, Giorgio, Carbonara, Andrea, Dietderich, Daniel R., Dimarco, Joseph, Pong, Ian, Sabbi, GianLuca, Santini, Carlo, Schmalzle, Jesse, & Wang, Xiaorong. Field Quality and Fabrication Analysis of HQ02 Reconstructed Nb3Sn Coil Cross Sections. United States. doi:10.1109/TASC.2017.2655629.
Holik, Eddie Frank, Ambrosio, Giorgio, Carbonara, Andrea, Dietderich, Daniel R., Dimarco, Joseph, Pong, Ian, Sabbi, GianLuca, Santini, Carlo, Schmalzle, Jesse, and Wang, Xiaorong. Mon . "Field Quality and Fabrication Analysis of HQ02 Reconstructed Nb3Sn Coil Cross Sections". United States. doi:10.1109/TASC.2017.2655629. https://www.osti.gov/servlets/purl/1343959.
@article{osti_1343959,
title = {Field Quality and Fabrication Analysis of HQ02 Reconstructed Nb3Sn Coil Cross Sections},
author = {Holik, Eddie Frank and Ambrosio, Giorgio and Carbonara, Andrea and Dietderich, Daniel R. and Dimarco, Joseph and Pong, Ian and Sabbi, GianLuca and Santini, Carlo and Schmalzle, Jesse and Wang, Xiaorong},
abstractNote = {The US LHC Accelerator Research Program (LARP) quadrupole HQ02 was designed and fully tested as part of the low-beta quad development for Hi-Lumi LHC. HQ02’s design is well documented with full fabrication accounting along with full field analysis at low and high current. With this history, HQ02 is an excellent test bed for developing a methodology for measuring turn locations from magnet cross sections and comparing with CAD models and measured field. All 4 coils of HQ02 were cut in identical locations along the magnetic length corresponding to magnetic field measurement and coil metrology. A real-time camera and coordinate measuring equipment was used to plot turn corners. Measurements include systematic and random displacements of winding blocks and individual turns along the magnetic length. The range of cable shifts and the field harmonic range along the length are in agreement, although correlating turn locations and measured harmonics in each cross section is challenging.},
doi = {10.1109/TASC.2017.2655629},
journal = {IEEE Transactions on Applied Superconductivity},
number = 4,
volume = 27,
place = {United States},
year = {Mon Jan 23 00:00:00 EST 2017},
month = {Mon Jan 23 00:00:00 EST 2017}
}