Abstract
TESTS have been made recently on a superconducting solenoid constructed from what is believed to be the longest continuous length of niobium–zirconium alloy wire so far produced in the United Kingdom. An ingot of the alloy (75 at. per cent niobium, 25 at. per cent zirconium) was swaged and cold drawn to give approximately 320 feet of 0.010-in. diameter wire. 100 ft. of this was used to construct the coil, which is shown in the accompanying photograph. The insulation was provided by a single layer of silk wrapping round the wire and by sheets of ‘Melinex’ between the layers of the coil.
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References
Chandrasekhar, B. S., et al., Eighth Intern. Conf. Low Temperature Physics (preprints, 313) (1962).
Berlincourt, T. G., et al., Phys. Rev. Letters, 6 (12), 671 (1961).
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WILSON, G., MICHIE, G. & ROBERTS, D. A Superconducting Solenoid. Nature 196, 1306 (1962). https://doi.org/10.1038/1961306a0
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DOI: https://doi.org/10.1038/1961306a0
