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.
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Hazelton et al. (1999) studied this question.