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Title: Sudden flux change studies in high field superconducting accelerator magnets

Abstract

As part of the High Field Magnet Program at Fermilab many magnets have been tested which utilize multi strand Rutherford type cable made of state-of-the art Nb{sub 3}Sn strands. During these magnet tests we observed sudden flux changes by monitoring coil voltages and the magnetic field close to the magnets. These flux changes might be linked to magnet instabilities. The voltage spike signals were correlated with quench antenna signals, a strong indication that these are magnet phenomena. With a new high resolution voltage spike detection system, we were able to observe the detailed structure of the spikes. Two fundamentally different signal shapes were distinguished, most likely generated by different mechanisms.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
15017252
Report Number(s):
FERMILAB-CONF-04-258-TD
TRN: US0605147
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Conference
Resource Relation:
Conference: To appear in the proceedings of Applied Superconductivity Conference: Harnessing the Magic (ASC 04), Jacksonville, Florida, 3-8 Oct 2004
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; ANTENNAS; CABLES; DETECTION; FERMILAB; MAGNETIC FIELDS; MAGNETS; MONITORING; RESOLUTION; SUPERCONDUCTIVITY; Accelerators

Citation Formats

Feher, S., Bordini, B., Carcagno, R., Makulski, A., Orris, D.F., Pischalnikov, Y.M., Sylvester, C., Tartaglia, M., Tompkins, J.C., Zlobin, A.V., and /Fermilab. Sudden flux change studies in high field superconducting accelerator magnets. United States: N. p., 2004. Web.
Feher, S., Bordini, B., Carcagno, R., Makulski, A., Orris, D.F., Pischalnikov, Y.M., Sylvester, C., Tartaglia, M., Tompkins, J.C., Zlobin, A.V., & /Fermilab. Sudden flux change studies in high field superconducting accelerator magnets. United States.
Feher, S., Bordini, B., Carcagno, R., Makulski, A., Orris, D.F., Pischalnikov, Y.M., Sylvester, C., Tartaglia, M., Tompkins, J.C., Zlobin, A.V., and /Fermilab. Fri . "Sudden flux change studies in high field superconducting accelerator magnets". United States. https://www.osti.gov/servlets/purl/15017252.
@article{osti_15017252,
title = {Sudden flux change studies in high field superconducting accelerator magnets},
author = {Feher, S. and Bordini, B. and Carcagno, R. and Makulski, A. and Orris, D.F. and Pischalnikov, Y.M. and Sylvester, C. and Tartaglia, M. and Tompkins, J.C. and Zlobin, A.V. and /Fermilab},
abstractNote = {As part of the High Field Magnet Program at Fermilab many magnets have been tested which utilize multi strand Rutherford type cable made of state-of-the art Nb{sub 3}Sn strands. During these magnet tests we observed sudden flux changes by monitoring coil voltages and the magnetic field close to the magnets. These flux changes might be linked to magnet instabilities. The voltage spike signals were correlated with quench antenna signals, a strong indication that these are magnet phenomena. With a new high resolution voltage spike detection system, we were able to observe the detailed structure of the spikes. Two fundamentally different signal shapes were distinguished, most likely generated by different mechanisms.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {10}
}

Conference:
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