Abstract
An 11 T liquid helium-free superconducting magnet designed at 6 K in vacuum using high temperature superconducting current leads was developed. The NbTi/Nb3Sn coil was conductively cooled down from room temperature to 4.1 K in 40 h by two 4 K GM-cryocoolers. In a performance test, the coil temperature rose to 6.8 K for the inner Nb3Sn coil and 5.9 K for the outer NbTi coil, while sweeping the field at 5 A min-1. A central field of 10.7 T in a 52 mm room temperature bore was generated at an operating current of 149 A. Holding the field at 10.5 T was achieved continuously for 24 h at a constant coil temperature of 4.8 K.
Original language | English |
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Pages (from-to) | 1019-1025 |
Number of pages | 7 |
Journal | Cryogenics |
Volume | 36 |
Issue number | 12 |
DOIs | |
Publication status | Published - 1996 |
Keywords
- GM-cryocooler
- High field
- High temperature superconducting current lead
- Superconducting magnet
ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)