DocumentCode
974222
Title
Magnetization Measurements of 
Wires for the Next European Dipole (NED)
Author
Greco, Michela ; Bernini, Cristina ; Fabbricatore, Pasquale ; Ferdeghini, Carlo ; Gambardella, Umberto
Author_Institution
INFN, Genova
Volume
16
Issue
2
fYear
2006
fDate
6/1/2006 12:00:00 AM
Firstpage
1164
Lastpage
1167
Abstract
The Next European Dipole (NED) activity is developing a high-performance Nb3Sn wire (aiming at a noncopper critical current density of 1500 A/mm2 at 4.2 K and 15 T), within the framework of the Coordinated Accelerator Research in Europe (CARE) project. As part of the conductor development program, magnetization measurements are carried out in parallel and transverse field, from low fields up to 10 T to characterize the conductor. Three Italian facilities are involved: INFN-Frascati, INFM-CNR Genova and INFN-Genova. In particular, measurements at low fields were performed to study magnetic instabilities (flux jumps) in strands with high critical current density. Experimental results, showing a correlation between instabilities at low fields and the residual unreacted niobium, are presented
Keywords
accelerator magnets; critical current density (superconductivity); magnetisation; niobium alloys; superconducting magnets; superconducting materials; tin alloys; 15 T; 4.2 K; CARE project; Coordinated Accelerator Research in Europe; INFM-CNR Genova; INFN-Frascati; INFN-Genova; Nb3Sn; Nb3Sn wires; Next European Dipole; conductor development program; flux jumps; magnetic instabilities; magnetization; noncopper critical current density; parallel field; superconducting dipole magnet; transverse field; Conductors; Critical current density; Current measurement; Density measurement; Europe; Magnetic field measurement; Magnetization; Niobium; Tin; Wires; Flux-jumps; magnetization;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2006.870555
Filename
1643055
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