Low-Loss NbTi Rutherford Cable for Application to the SIS-300 Dipole Magnet Prototype

Author

Volpini, G. ; Alessandria, F. ; Bellomo, G. ; Fabbricatore, P. ; Farinon, S. ; Gambardella, U. ; Kaugerts, J. ; Moritz, G. ; Sorbi, M. ; Wilson, M.N.

Author_Institution

INFN, LASA Lab., Milan

Volume

18

Issue

2

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

997

Lastpage

1000

Abstract

INFN (Istituto Nazionale di Fisica Nucleare, Italy) has started in 2006 the DISCORAP project, which foresees the design, manufacture and test of a dipole prototype for the SIS-300 synchrotron of the FAIR facility at GSI. In order to minimize the losses produced by the fast ramp rate (1 T/s) at which the magnet is operated, we are developing with European industries, a Rutherford cable which incorporates several technologies to reduce the losses, and namely a NbTi filament diameter on the order of 2.5-3.5 mum, Cu 0.5 wt%Mn interfilamentary matrix and stainless steel core. In this paper we present the design principles and the first experimental results; we also analyze the impact of the CuMn paramagnetism on the field distortion at the different operating magnetic fields.

Keywords

magnetic leakage; niobium alloys; superconducting cables; superconducting magnets; titanium alloys; type II superconductors; windings; AC losses; NbTi; SIS-300 dipole magnet prototype application; SIS-300 synchrotron; field distortion; interfilamentary matrix; low-loss Rutherford cable; magnet winding; paramagnetism; size 2.5 mum to 3.5 mum; stainless steel core; superconducting cable; superconducting dipole; AC losses; Rutherford cable; superconducting dipole;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2008.922516

Filename

4494484