Coupling time constants for modified jelly roll Nb/sub 3/Sn wires

Author

McKinnell, J.C. ; Siddall, M.B. ; Smathers, D.B.

Author_Institution

Teledyne Wah Chang Albany, OR, USA

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

472

Lastpage

475

Abstract

Measurement of the coupling time constant allows an estimate of the coupling loss in AC applications. The authors report the coupling time constants of modified jelly-roll niobium-tin (Nb/sub 3/Sn) wires which were measured using a modified version of the technique described by T. Ando et al. (1985, 1988). The coupling time constant is reported for over 200 km of wire at zero applied field. If the pulse field was large enough, two characteristic time constants were observed at zero field. The longer of the two time constants was not observed when a DC magnetic field of >or=0.1 T was applied to the sample. The field behavior of the coupling time constant from 0 to 6 T is also reported.<>

Keywords

fusion reactor materials; niobium compounds; superconducting cables; superconducting magnets; 0 to 6 T; 200 km; AC applications; DC magnetic field; Nb/sub 3/Sn; coupling loss; coupling time constant; modified jelly roll Nb/sub 3/Sn wires; pulse field; Atmospheric measurements; Couplings; Fasteners; Magnetic field measurement; Niobium; Superconducting coils; Tin; Voltage; Wire; Wounds;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233746

Filename

233746