DocumentCode
1107506
Title
The effect of transverse loads up to 300 MPa on the critical currents of Nb3Sn cables [for LHC]
Author
Boschman, H. ; Verweij, A.P. ; Wessel, S. ; ten Kate, H.H.J. ; van de Klundert, L.J.M.
Author_Institution
Appl. Superconductivity Centre, Twente Univ., Netherlands
Volume
27
Issue
2
fYear
1991
fDate
3/1/1991 12:00:00 AM
Firstpage
1831
Lastpage
1834
Abstract
In the framework of the development of an experimental 10-T Nb3Sn dipole coil for the LHC (Large Hadron Collider) at CERN, the effects of transverse stress on Rutherford-type Nb3Sn cable were investigated. For this purpose a special facility was designed and put into operation in which the voltage-current behavior of short pieces of Nb3Sn cables can be investigated in a background field of up to 11 T and an applied stress of 300 MPa. The repulsive Lorentz force of 250 kN, generated by a set of superconducting coils, is used to impress the cable over an area of 20×42 mm2 maximum, in the presence of a transport current of up to 40 kA. The testing equipment is described, and the first results of the observed critical current degradation of two Nb3Sn cables are discussed
Keywords
beam handling equipment; composite superconductors; critical currents; niobium alloys; proton accelerators; storage rings; stress effects; superconducting cables; superconducting magnets; synchrotrons; tin alloys; type II superconductors; 11 T; A15 superconductor; LHC dipole coil; Large Hadron Collider; Nb3Sn cables; Rutherford type cable; critical currents; current degradation; effect of transverse loads; repulsive Lorentz force; voltage-current behavior; Critical current; Large Hadron Collider; Lorentz covariance; Niobium; Stress; Superconducting cables; Superconducting coils; Testing; Tin; Voltage;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.133551
Filename
133551
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