Takeshi Kamikado

TL;DR: In this paper, the Tsukuba Magnet Laboratory (TML) built a 920-MHz high-resolution NMR magnet, which is made of 15% Sn-bronze-processed (Nb, Ti)/sub 3/Sn, Ta-reinforced (Nk, Ti), sub 3/sn, and NbTi conductors.

TL;DR: The Tsukuba magnet as mentioned in this paper achieved a persistent operation at 21.6 T (920 MHz) for 108 days and achieved the highest field that the superconducting magnets have ever achieved in persistent operation.

TL;DR: In this article, a 1GHz NMR magnet was successfully manufactured and operated at the Tsukuba Magnet Laboratory, achieving a field of 21.20 T in a driven mode and then operated in a persistent mode at 21.17 T corresponding to a proton NMR frequency of 902 MHz.

TL;DR: In this article, the authors developed two types of 15 T superconducting magnets, which will be among the highest field magnets in operation as cryogen-free with a GM cryocooler.

TL;DR: In this paper, the authors developed a 7 T 240 mm vertical bore cryogen-free superconducting magnet system, which will be used for gyrotron, which consists of three sets of coils which are charged separately.