, Volume 37, Issue 11, pp 1054-1057
Date: 02 Dec 2011

Soft X-ray generation and its role in breakdown of air gap at elevated pressures

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Abstract

Fast runaway electrons, which appear during the electric breakdown in an air-filled discharge gap under the action of a short-front voltage pulse, generate 525-eV photons from the K-shell of oxygen. This soft X-ray emission effectively generates new electrons in the region of enhanced field. The proposed mechanism may explain the fast streamer propagation and the formation of a diffuse discharge at atmospheric pressure.

Original Russian Text © A.V. Kozyrev, V.F. Tarasenko, E.Kh. Baksht, Yu.V. Shut’ko, 2011, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2011, Vol. 37, No. 22, pp. 26–33.