Current dependence of harmonic field coefficients of 5-cm aperture, 15-m long SSC dipole magnet prototypes

Conference · Sat Aug 01 04:00:00 EDT 1992 · IEEE Trans.Appl.Supercond.

DOI:https://doi.org/10.1109/77.233794· OSTI ID:1847780

Zhao, Y.

Eighteen 5-cm-aperture, 15-m-long SSC dipole magnet prototypes have been produced and cold tested. On each prototype, the dependence of harmonic field coefficients on magnet current was measured as part of a study of the magnetic field quality. For most of the magnets, the observed behavior conforms to what can be expected from the effects of persistent magnetization currents and iron yoke saturation. A few prototypes, however, exhibited anomalies during current ramp at 4 A/s which can be attributed to large cable eddy currents.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1847780
• Report Number(s): SSCL-PREPRINT-147D; FERMILAB-CONF-92-411-TD; oai:inspirehep.net:339038
• Conference Information: Journal Name: IEEE Trans.Appl.Supercond. Journal Volume: 3
• Country of Publication: United States
• Language: English