28T-CHM, 25T-CHM

This is the cryogen-free hybrid magnet consisting of a 360 mm large bore superconducting magnet and water-cooled magnet. The superconducting magnet consists of the outer part of NbTi coil and the innermost Nb₃Sn coil. The NbTi coil generates 5.35 T at operating current of 350 A. The Nb₃Sn coil generates 3.65 T at operating current of 197 A. The Bitter type water-cooled magnet charges 19 T with 32 mm bore or 16 T with 52 mm bore at 7-8 MW. The 28 T by the cryogen-free hybrid magnet is the world record. You can use up to 28 T or 25 T. You can do an experiment at 30 mK by a dilution refrigerator.

• 28T-CHM
• 　Field: 28 T
• 　Time to maximum field: 60 min
• 　Sample space diameter: 32 mm
• 25T-CHM
• 　Field: 25 T
• 　Time to maximum field: 60 min
• 　Sample space diameter: 52 mm
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• 　Made by Sumitomo Heavy Industry and Tohoku University