Thermal stability for Ti-22 atomic percent Nb superconducting cables and solenoids

Author

Whetstone, C.N. ; Chase, G.G. ; Raymond, J.W. ; Vetrano, J. ; Boom, R.W. ; Prodell, A.G. ; Worwetz, H.A.

Author_Institution

Atomics International, Canoga Park, Calif.

Volume

2

Issue

3

fYear

1966

fDate

9/1/1966 12:00:00 AM

Firstpage

307

Lastpage

310

Abstract

Thermal stability and supercurrent recovery levels are reported for composite copper, Ti-22 atomic percent Nb cables. Cable sizes vary from 0.06 to 0.17-inch diameter and current levels from 200 to 1800 A. Magnet and small coil tests show that cable magnet performance is consistent with short gap cable tests. It is concluded that thermal stability for cables in liquid helium occurs only for temperature rises less than $\\sim0.8\\deg$ K; thus, the critical temperature of the superconductor is not an important factor in the design of totally protected solenoids. Magnet design recommendations are made which define the limit for stabilized currents as the superconducting critical current or the copper-limited current, whichever is lower. Copper-limited values are determined by cooling conditions and normal cable resistance.

Keywords

Magnetic thermal effects; Niobium-titanium alloys; Superconducting wires; Copper; Niobium; Solenoids; Superconducting cables; Superconducting coils; Superconducting magnets; Temperature; Testing; Thermal factors; Thermal stability;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1966.1065844

Filename

1065844