NASA NTRS · 19730035658
Performance of a 12-coil superconducting 'bumpy torus' magnet facility.
Abstract
The NASA-Lewis 'bumpy torus' facility consists of 12 superconducting coils, each 19 cm ID and capable of 3.0 tesla on their axes. The coils are equally spaced around a toroidal array with a major diameter of 1.52 m, and are mounted with the major axis of the torus vertical in a single vacuum tank 2.6 m in diameter. Final shakedown tests of the facility mapped out its magnetic, cryogenic, vacuum, mechanical, and electrical performance. The facility is now ready for use as a plasma physics research facility. A maximum magnetic field on the magnetic axis of 3.23 teslas has been held for a period of more than sixty minutes without a coil normalcy.
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Roth, J. R., Holmes, A. D., Keller, T. A., Krawczonek, W. M.. 1972-11-01. Performance of a 12-coil superconducting 'bumpy torus' magnet facility.. https://ntrs.nasa.gov/citations/19730035658
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