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Abstract

This review of the electromagnetic pinch starts with an exhibit taken from Pollock's work: a compressed and distorted length of copper tube originally part of a lightning conductor known to have been struck by lightning. Pollock and Barraclough (1905) carried out an analysis and concluded that the compressive forces, due to the interaction of the large current flow with its own magnetic field could have been responsible for the compression and distortion. This is probably the first identified piece of observational data on the electromagnetic pinch; and the first theoretical discussion of the effect. A repetition of their analysis with modern data (Fink and Carroll, 1968) suggests that the basic conclusion drawn by Pollock would seem to be correct. The paper continues with a discussion of confirmatory work in liquid metals, radiative collapse of degenerate pinches gaseous pinch discharges, toroidal stabilized discharges, the tokamak configuration, and lastly expectations for, limitations of and results with JET.

Additional information

Authors: PEASE R S CULHAM LABORATORY, ABINGDON (UK), CULHAM LABORATORY, ABINGDON (UK)
Bibliographic Reference: JOURNAL AND PROCEEDINGS, ROYAL SOCIETY OF NEW SOUTH WALES, VOL. 118 (1985) PP. 27-42
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