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Title: Nb3Sn cable development for the 11 T dipole demonstation model

Abstract

Fermilab (FNAL) and CERN have started the development of 11 T 11-m long Nb{sub 3}Sn dipoles to replace a number of LHC NbTi dipoles and free space for cold collimators in the LHC DS areas. An important step in the design of these magnets is the development of the high aspect ratio Nb{sub 3}Sn cable to achieve the nominal field of 11 T at the nominal LHC operating current of 11.85 kA at 1.9 K with 20% margin. Keystoned cables with 40 and 41 strands with and without a stainless steel core were made out of hard Cu wires and Nb{sub 3}Sn RRP strand of 0.7 mm nominal diameter. The cable optimization process was aimed at achieving both mechanical stability and minimal damage to the delicate internal architecture of the Restacked-Rod-Process (RRP) Nb3Sn strands with 127 restack design to be used in the magnet short models. Each cable was characterized electrically for transport properties degradation at high field and for low field stability, and metallographically for internal damage.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1021031
Report Number(s):
FERMILAB-CONF-11-276-TD
TRN: US1103797
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: Presented at Cryogenic Engineering Conference and International Cryogenic Materials Conference CEC-ICMC 2011, Spokane, Washington, 13-17 June 2011
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ASPECT RATIO; CABLES; CERN; COLLIMATORS; DAMAGE; DESIGN; DIPOLES; FERMILAB; MAGNETS; MATERIALS; MEETINGS; NIOBIUM ALLOYS; OPTIMIZATION; STABILITY; STAINLESS STEELS; TIN ALLOYS; TRANSPORT; WIRES; Accelerators

Citation Formats

Barzi, E, Lombardo, V, Nobrega, F, Turrioni, D, Yamada, R, Zlobin, A V, /Fermilab, Karppinen, M, and /CERN. Nb3Sn cable development for the 11 T dipole demonstation model. United States: N. p., 2011. Web.
Barzi, E, Lombardo, V, Nobrega, F, Turrioni, D, Yamada, R, Zlobin, A V, /Fermilab, Karppinen, M, & /CERN. Nb3Sn cable development for the 11 T dipole demonstation model. United States.
Barzi, E, Lombardo, V, Nobrega, F, Turrioni, D, Yamada, R, Zlobin, A V, /Fermilab, Karppinen, M, and /CERN. 2011. "Nb3Sn cable development for the 11 T dipole demonstation model". United States. https://www.osti.gov/servlets/purl/1021031.
@article{osti_1021031,
title = {Nb3Sn cable development for the 11 T dipole demonstation model},
author = {Barzi, E and Lombardo, V and Nobrega, F and Turrioni, D and Yamada, R and Zlobin, A V and /Fermilab and Karppinen, M and /CERN},
abstractNote = {Fermilab (FNAL) and CERN have started the development of 11 T 11-m long Nb{sub 3}Sn dipoles to replace a number of LHC NbTi dipoles and free space for cold collimators in the LHC DS areas. An important step in the design of these magnets is the development of the high aspect ratio Nb{sub 3}Sn cable to achieve the nominal field of 11 T at the nominal LHC operating current of 11.85 kA at 1.9 K with 20% margin. Keystoned cables with 40 and 41 strands with and without a stainless steel core were made out of hard Cu wires and Nb{sub 3}Sn RRP strand of 0.7 mm nominal diameter. The cable optimization process was aimed at achieving both mechanical stability and minimal damage to the delicate internal architecture of the Restacked-Rod-Process (RRP) Nb3Sn strands with 127 restack design to be used in the magnet short models. Each cable was characterized electrically for transport properties degradation at high field and for low field stability, and metallographically for internal damage.},
doi = {},
url = {https://www.osti.gov/biblio/1021031}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {6}
}

Conference:
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