DocumentCode :
974205
Title :
Measurement of Critical Current and Instability Threshold of Rutherford-Type 
Cables
CablesAuthor :
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
Link To Document :
