Abstract
The MIT 12 tesla coil was fabricated using a 486-strand bronze-matrix Nb3Sn, JBK- 75 superalloy sheathed Internally Cooled Cabled Superconductor (ICCS). The rectangularly shaped ICCS conductor was wound into three double pancakes prior to a six-day reaction (4 days at 700 C followed by 2 days at 730 C). Prior to installation in the High Field Test Facility (HFTF) at LLNL the three subcoils were insulated and epoxy potted. With the HFTF providing a 9 T background field, the test coil was used to raise the central field up to 12 T. Measurements of critical current are reported for fields in the 11 to 12 T range for temperatures of 4.2, 5.2 and 7.5 K with supercritical as well as 1 atm, two-phase internal helium. Steady-state, inductively heated as well as quench induced operations are described.
Supported by the Office of Fusion Energy, U. S. DOE
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References
M. O. Hoenig, M. M. Steeves, and C. J. Cyders, Niobium3-Tin internally cooled cabled superconductor (ICCS) Technology II, J. de Physique, 45:C1–599(1984).
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© 1986 Plenum Press, New York
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Hoenig, M.O., Steeves, M.M., Minervini, J.V., Miller, J.R. (1986). Mit 12 Tesla Coil Experimental Results. In: Fast, R.W. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 31. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2213-9_16
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DOI: https://doi.org/10.1007/978-1-4613-2213-9_16
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