Normal state resistance and low temperature magnetoresistance of superconducting cables for accelerator magnets

Author

Sampson, W.B. ; Garber, M. ; Ghosh, A.K.

Author_Institution

Brookhaven Nat. Lab., Upton, NY, USA

Volume

25

Issue

2

fYear

1989

fDate

3/1/1989 12:00:00 AM

Firstpage

2097

Lastpage

2100

Abstract

Resistance measurements which are routinely made on superconducting wires and cables for accelerator magnets can provide an accurate measure of the copper-to-superconductor ratio. Compared to the etch and weight technique, a resistance specification for Cu/Sc is preferable for monitoring of this parameter during wire and cable production. Results shown here indicate that by using the 4 K magnetoresistance data of bulk copper and the size effect formula for the resistivity enhancement of copper, the measured residual resistance ratio can be used to estimate the resistance at high fields

Keywords

composite superconductors; magnetoresistance; superconducting magnets; Cu to superconductor ratio; accelerator magnets; composite superconductor; high-field resistance; low temperature magnetoresistance; normal state resistance; residual resistance ratio; resistivity enhancement; size effect formula; superconducting cables; superconducting magnets; superconducting wires; Accelerator magnets; Condition monitoring; Copper; Electrical resistance measurement; Etching; Magnetoresistance; Production; Superconducting cables; Superconducting filaments and wires; Temperature;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.92721

Filename

92721