Development of a 15 T/17 T solid state NMR magnet systemDevelopment of a 15 T/17 T solid state NMR magnet system
【title】：Development of a 15 T/17 T solid state NMR magnet systemDevelopment of a 15 T/17 T solid state NMR magnet system 【Authors】：Coffey, D.M.; McGhee, R.W.; Wu, Y.; Keener, S. 【Subject】：solenoids; superconducting coils; superconducting magnets; NMR spectrometers; protection; solid state NMR magnet system; high field NMR magnet; condensed matter physics; NMR experiments; Nb/sub 3/Sn solenoids; NbTi solenoids; persistent mode operation; driven mode operation; persistent switch; lambda plate refrigerator; cryostat; quench protection; 15 T; 17 T; 2 to 4.2 K; 52 mm; Nb/sub 3/Sn; NbTi 【Page】：435_438【CorporateSource】：Cryomagnetics Inc., Oak Ridge, TN, USA【ConferenceDte】：25-30 Aug. 1996 【ISSN】：1051-8223【Volume】：7【Issue】：2【Part】：1【pdfd】：IELDVD028:77:13416:614522【File Size】：399K 【Part】：1【PublishDate】：June 1997【AccessionNumber】：5655779【Publisher】：Applied Superconductivity, IEEE Transactions on【TotalPage】： 【Abstract】：A high field NMR magnet system, up to 17 Tesla at 2.0 K with magnet bore of 52 mm was developed. This magnet system will be used to perform NMR experiments in the field of condensed matter physics. The magnet consists Nb/sub 3/Sn and NbTi solenoids. The central field is 15 T at 4.2 K and 17 T at 2.0 K. The field homogeneity is better than 10 ppm over 1 cm diameter sphere volume without shims. The magnet can be operated in the persistent mode and driven mode. A persistent switch was installed on the magnet and the field decay rate was less than 5 ppm/hour in persistent mode operation. The complete magnet was built into a cryostat equipped with a lambda plate refrigerator. In this paper, the magnet test results are presented.
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