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Title: The Study of Single Nb3Sn Quadrupole Coils Using a Magnetic Mirror Structure

Abstract

Several 90-mm quadrupole coils made of 0.7-mm Nb{sub 3}Sn strand based on the 'Restack Rod Process' (RRP) of 108/127 design, with cored and non-cored cables and different cable insulation, were fabricated and individually tested at Fermilab using a test structure designed to provide a quadrupole magnetic field environment. The coils were instrumented with voltage taps and strain gauges to study quench performance and mechanical properties. The Nb{sub 3}Sn strand and cable parameters, the coil fabrication details, the mirror model assembly procedure and test results at temperatures of 4.5 K and 1.9 K are reported and discussed.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
988903
Report Number(s):
FERMILAB-CONF-10-276-TD
TRN: US1006984
DOE Contract Number:
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: Presented at Applied Superconductivity Conference (ASC 2010), Washington, D.C., 1-6 Aug 2010
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CABLES; DESIGN; FABRICATION; FERMILAB; MAGNETIC FIELDS; MAGNETIC MIRRORS; MECHANICAL PROPERTIES; MIRRORS; PERFORMANCE; QUADRUPOLES; STRAINS; SUPERCONDUCTIVITY; Experiment-HEP

Citation Formats

Chlachidze, G., Andreev, N., Barzi, E., Bossert, R., Kashikhin, V.S., Kashikhin, V.V., Lamm, M.J., Nobrega, N., Novitski, I., Orris, D., and Tartaglia, M. The Study of Single Nb3Sn Quadrupole Coils Using a Magnetic Mirror Structure. United States: N. p., 2010. Web.
Chlachidze, G., Andreev, N., Barzi, E., Bossert, R., Kashikhin, V.S., Kashikhin, V.V., Lamm, M.J., Nobrega, N., Novitski, I., Orris, D., & Tartaglia, M. The Study of Single Nb3Sn Quadrupole Coils Using a Magnetic Mirror Structure. United States.
Chlachidze, G., Andreev, N., Barzi, E., Bossert, R., Kashikhin, V.S., Kashikhin, V.V., Lamm, M.J., Nobrega, N., Novitski, I., Orris, D., and Tartaglia, M. 2010. "The Study of Single Nb3Sn Quadrupole Coils Using a Magnetic Mirror Structure". United States. doi:. https://www.osti.gov/servlets/purl/988903.
@article{osti_988903,
title = {The Study of Single Nb3Sn Quadrupole Coils Using a Magnetic Mirror Structure},
author = {Chlachidze, G. and Andreev, N. and Barzi, E. and Bossert, R. and Kashikhin, V.S. and Kashikhin, V.V. and Lamm, M.J. and Nobrega, N. and Novitski, I. and Orris, D. and Tartaglia, M.},
abstractNote = {Several 90-mm quadrupole coils made of 0.7-mm Nb{sub 3}Sn strand based on the 'Restack Rod Process' (RRP) of 108/127 design, with cored and non-cored cables and different cable insulation, were fabricated and individually tested at Fermilab using a test structure designed to provide a quadrupole magnetic field environment. The coils were instrumented with voltage taps and strain gauges to study quench performance and mechanical properties. The Nb{sub 3}Sn strand and cable parameters, the coil fabrication details, the mirror model assembly procedure and test results at temperatures of 4.5 K and 1.9 K are reported and discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2010,
month = 7
}

Conference:
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  • This paper describes the design and parameters of a quadrupole mirror structure for testing the mechanical, thermal and quench performance of single shell-type superconducting quadrupole coils at field, current and force levels similar to that of real magnet. The concept was experimentally verified by testing two quadrupole coils, previously used in quadrupole models, in the developed mirror structure in the temperature range from 4.5 to 1.9 K. The coils were instrumented with voltage taps, heaters, and strain gauges to monitor their mechanical and thermal properties and quench performance. A new quadrupole coil made of improved Nb{sub 3}Sn RRP-108/127 strand andmore » cable insulation based on E-glass tape was also tested using this structure. The fabrication and test results of the quadrupole mirror models are reported and discussed.« less
  • The US-LARP collaboration is developing a new generation of large-aperture high-field quadrupoles based on Nb{sub 3}Sn superconductor for the LHC upgrades. The development and implementation of this new technology involves the fabrication and testing of series of model magnets, coils and other components with various design and processing features. New 120-mm HQ coils made of Rutherford cable, one with an interlayer resistive core, and both with optimized reaction processes, were fabricated and tested using a quadrupole mirror structure under operating conditions similar to those in a real magnet. The coils were instrumented with voltage taps and strain gauges to studymore » the mechanical and quench performance. Quench antenna and temperature gauges were installed in the mirror structure to measure the coil temperature and locate quench origins. This paper presents details of the coil design and fabrication procedures, coil assembly and pre-stress in the quadrupole mirror structure, and coil test results.« less