Title :
HTS insert coils for high field NMR spectroscopy
Author :
Hazelton, D.W. ; Xing Yuan ; Weijers, H.W. ; van Sciver, S.W.
Author_Institution :
Intermagnetics Gen. Corp., Latham, NY, USA
fDate :
6/1/1999 12:00:00 AM
Abstract :
The availability of high field insert coils will extend the operating point of future NMR systems above the 1 GHz level. We report here on the continuing development of HTS insert coils fabricated with BSCCO-2212 surface coated (SC) superconductor in a tape form. In addition, we review a number of issues associated with the application of HTS superconductors to high resolution NMR. The latest conductor and coil test results to date are presented for a prototype layer wound magnet with a 52 mm bore. In order to accommodate the high stresses associated with high field operation, a nested set of coils is utilized. This coil set provided up to an additional 1.9 Tesla central field while operating at 4.2 K in a 19 Tesla background field.
Keywords :
NMR spectroscopy; bismuth compounds; calcium compounds; high-temperature superconductors; strontium compounds; superconducting coils; 1.9 T; 19 T; 4.2 K; 52 mm; BSCCO-2212 surface coated superconductor; Bi/sub 2/Sr/sub 2/CaCu/sub 2/O; HTS insert coils; coil set; coil test; high field NMR spectroscopy; high field insert coils; high field operation; high stresses; layer wound magnet; operating point; superconductor test; Availability; Conductors; High temperature superconductors; Nuclear magnetic resonance; Spectroscopy; Superconducting coils; Superconducting epitaxial layers; Superconducting films; Superconducting magnets; Testing;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
