A.C. energy losses of Nb-Ti multifilamentary superconductors for the magnets of the nuclotron

Author

Agapov, N.N. ; Dorofeev, G.L. ; Drobin, V.M. ; Kovalenko, A.D. ; Khodzhibagiyan, H.G. ; Vladimirova, N.M.

Author_Institution

Joint Inst. for Nucl. Res., Dubna, Russia

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

1102

Lastpage

1104

Abstract

The performances of the installation used to measure a.c. energy losses of short superconducting samples in an external pulsed magnetic field are given. The calorimetric method at 4.2 K is used. The measurable range of losses is from 10 up to 1000 mW. The results of loss measurements of superconducting wires and tubular cables with a various diameter of superconducting filaments and twist length are presented. The experimental values of hysteresis and eddy current losses are compared with the calculated ones. The influence of the Nb barrier and solid-state diffusion on the loss values is investigated.

Keywords

calorimetry; eddy current losses; loss measurement; magnetic hysteresis; multifilamentary superconductors; niobium alloys; superconducting magnets; titanium alloys; 10 to 1000 mW; 4.2 K; AC energy loss measurement; Nb barrier; Nb-Ti; Nb-Ti multifilamentary superconductor; calorimetric method; eddy current loss; hysteresis loss; nuclotron magnet; pulsed magnetic field; solid-state diffusion; superconducting wire; tubular cable; Energy loss; Energy measurement; Loss measurement; Magnetic field measurement; Magnets; Multifilamentary superconductors; Performance evaluation; Pulse measurements; Superconducting cables; Superconducting filaments and wires;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018593

Filename

1018593