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Fabrication and Operation of a RHQT Nb3A1 Insert Coil Generating 4.5 T at 4.2 K in 15 T Back-Up Field.
- Source :
-
IEEE Transactions on Applied Superconductivity . Jun2007 Part 3 of 3, Vol. 17 Issue 2, p2684-2687. 4p. 1 Black and White Photograph, 1 Chart, 7 Graphs. - Publication Year :
- 2007
-
Abstract
- To demonstrate the RHQT Nb3Al conductor to be really a candidate for a high-field magnet, we have fabricated 1 km-class Cu stabilized RHQT Nb3Al flat-wires, manufactured two insert real-sized coils #A and #B, and tested in a superconducting back-up field of 15 T at 4.2 K. Using the coil #A, a thinning of insulator, a winding technique, a new transformation annealing profile in a vacuum with a fast temperature-ramp above 500°C, decarbonization, an impregnation technique used for the Nb3Sn coil were preliminarily checked to be no matter. The coil #B that was wound with a 764 m piece could produce an additional 4.5 T (total 19.51) at 4.2 K in a clear bore of 30 mm without any training, when the coil current achieved the Ic of short samples that were simultaneously transformation annealed with the coil #B. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10518223
- Volume :
- 17
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Applied Superconductivity
- Publication Type :
- Academic Journal
- Accession number :
- 26294297
- Full Text :
- https://doi.org/10.1109/TASC.2007.899655