Letter | Published:

Insulating Particles on Cathode Surfaces: their Effect upon Electrical Discharges


PREVIOUS work1,2 has shown that arcs on the negative electrode of a spark gap, were initiated around poorly conducting inclusions. As a logical development of this finding it became of some importance to differentiate between the respective parts played by inclusions and the metal, from which the cathodes were made, in the initiation of arcs.

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  1. 1

    Pfeil, P. C. L., and Griffiths, L. B., Nature, 183, 1481 (1959).

  2. 2

    Pfeil, P. C. L., and Griffiths, L. B., J. Nuclear Materials, 1, (3) (1959).

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