Title :
600 MHz spectrometer magnet
Author :
Williams, J.E.C. ; Pourrahimi, S. ; Iwasa, Y. ; Neuringer, L.J. ; Motowidlo, L.
Author_Institution :
Francis Bitter Nat. Magnet Lab., MIT, Cambridge, MA, USA
fDate :
3/1/1989 12:00:00 AM
Abstract :
An NMR-grade superconducting magnet has been constructed which operates in persistent mode at 14.25 T at reduced temperature. The stored energy is 840 kJ. The magnet incorporates niobium-titanium and niobium-tin multifilamentary conductors. In the persistent mode all windings are in series with superconducting joints between sections. Six of the joints are hybrids, niobium-tin joined to niobium-titanium. The niobium-titanium windings reached short sample without training. The niobium-tin sections suffered two training quenches before reaching 14.25 T
Keywords :
biomedical NMR; superconducting magnets; 14.25 T; 600 MHz; 840 kJ; NMR-grade superconducting magnet; Nb3Sn multifilamentary conductors; Nb3Sn-NbTi joints; NbTi multifilamentary conductors; hybrid joints; multisection magnet; persistent mode; quench protection; spectrometer magnet; stored energy; superconducting joints; training quenches; Coils; Conductors; Niobium compounds; Niobium-tin; Protection; Spectroscopy; Superconducting magnets; Switches; Temperature; Titanium compounds;
Journal_Title :
Magnetics, IEEE Transactions on
