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11) Cryogenfree 23T Hybrid Magnet

2008/04/11(Fri) 19:24

We are now constructing a cryogenfree 23 T hybrid magnet at the High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University. The world's first cryogenfree hybrid magnet combined with an inner 15.5 T water-cooled resistive magnet was tested, and at present, the central magnetic field of 21.5 T was generated in a 52 mm room temperature experimental bore. The magnetic force field of 2270 T2/m was obtained. Using a YAG laser combined with the cryogenfree hybrid magnet, a containerless melting experiment in magnetic levitation was performed to fabricate a field-oriented paraffin fine ball.

IMR, Tohoku : Kazuo Watanabe, Satoshi Awaji
CREST, Japan Science and Technology Corp., : Mitsuhiro Motokawa
Reference : K. Watanabe, S. Awaji, K.Takahashi, G. Nishijima, M. Motokawa, Y. Sasaki, Y. Ishikawa,K. Jikihara, J. Sakuraba,"Construction of the Cryogen-Free 23 T Hybrid Magnet" , IEEE Trans. Appl. Supercond. 12 (2002) 678-681.