Analysis of eddy current distributions in the CMS magnet yoke during the solenoid discharge

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Flux loops have been installed on selected segments of the magnetic flux return yoke of the 4 T superconducting coil of the Compact Muon Solenoid (CMS) detector under construction at CERN. Voltages induced in the loops during discharge of the solenoid will be sampled on-line during the entire discharge and integrated off-line to provide a measurement of the initial magnetic flux density in steel at the maximum field to an accuracy of a few percent. Although the discharge of the solenoid is rather slow (190 s time constant), the influence of eddy currents induced in the yoke elements should be ... continued below

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4 pages

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Klyukhin, V. I.; Campi, D.; Cure, B.; Gaddi, A.; Gerwig, H.; Grillet, J. P. et al. January 1, 2005.

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Flux loops have been installed on selected segments of the magnetic flux return yoke of the 4 T superconducting coil of the Compact Muon Solenoid (CMS) detector under construction at CERN. Voltages induced in the loops during discharge of the solenoid will be sampled on-line during the entire discharge and integrated off-line to provide a measurement of the initial magnetic flux density in steel at the maximum field to an accuracy of a few percent. Although the discharge of the solenoid is rather slow (190 s time constant), the influence of eddy currents induced in the yoke elements should be estimated. The calculation of eddy currents is performed with Vector Fields program ELEKTRA. The results of calculations are reported.

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4 pages

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  • Journal Name: IEEE Trans.Nucl.Sci.52:741-744,2005

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  • Report No.: FERMILAB-CONF-04-539-E
  • Grant Number: AC02-76CH03000
  • DOI: 10.1109/TNS.2005.850932 | External Link
  • Office of Scientific & Technical Information Report Number: 892352
  • Archival Resource Key: ark:/67531/metadc876137

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Aug. 1, 2017, 11:31 a.m.

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Klyukhin, V. I.; Campi, D.; Cure, B.; Gaddi, A.; Gerwig, H.; Grillet, J. P. et al. Analysis of eddy current distributions in the CMS magnet yoke during the solenoid discharge, article, January 1, 2005; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc876137/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.