On the 16.5 T Superconducting Magnet Operation(Part II. Several Instruments and Techniques Developed in HFLSM)

A 16.5 T superconducting magnet employing a surface diffusion processed Nb_3Sn tape was installed in High Field Laboratory for Superconducting Materials at Tohoku University in 1982. The magnet generates high fields up to 16.5 T in a 57 mm diameter bore and has the maximum stored energy of 660 kJ. Since 1982, the magnet has been used for 622 days and charged up about 1070 times up to the field higher than 14 T without serious troubles. In this paper, results of 16.5 T superconducting magnet operations in the last 4 years are described