DocumentCode
974205
Title
Measurement of Critical Current and Instability Threshold of Rutherford-Type 
Cables
Author
Ambrosio, G. ; Andreev, N. ; Barzi, E. ; Bordini, B. ; Denarie, C.-H. ; Feher, S. ; Kashikhin, V. ; Verweij, A.P. ; Zlobin, A.V.
Author_Institution
Fermi Nat. Accel. Lab., Batavia, IL
Volume
16
Issue
2
fYear
2006
fDate
6/1/2006 12:00:00 AM
Firstpage
1160
Lastpage
1163
Abstract
As part of a collaboration between FNAL and CERN, Nb3Sn Rutherford-type cables made of different wires (MJR and PIT) have been assembled in the sample holder at FNAL and tested at FRESCA (CERN). All cable samples had 28 strands with 1-mm diameter, and a trapezoidal cross-section with 0.9-1 degree keystone angle. All samples were tested at 4.3 and 1.8 K. After the first series of tests both cables were retested with higher prestress. The PIT sample was extensively retested at 1.9 K. During the second run the MJR sample was also tested at constant current in sweeping field in order to characterize its stability. All samples showed signs of instability and several voltage spikes were detected and recorded. Critical current and instability threshold measurements are presented and compared with previous tests and magnet performances
Keywords
accelerator magnets; cable testing; critical currents; materials testing; niobium alloys; superconducting cables; superconducting magnets; tin alloys; 1 mm; 1.8 K; 1.9 K; 4.3 K; MJR sample; Modified-Jelly-Roll wires; Nb3Sn; PIT sample; Powder-In-Tube wires; Rutherford-type niobium tin cables; accelerator magnets; critical current; sample holder; superconducting cables; superconductor instability threshold; sweeping field; Assembly; Cables; Collaboration; Critical current; Current measurement; Niobium; Stability; Testing; Tin; Wires; Critical current measurement; niobium-tin; superconducting cables; superconductor instability;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2005.864249
Filename
1643054
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