Scaling Law for a Low-Pressure Gas Breakdown in a Homogeneous DC Electric Field
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Дата
2000-02
Автори
Назва журналу
Номер ISSN
Назва тому
Видавець
Journal of Experimental and Theoretical Physics Letters
Анотація
Gas breakdown in nitrogen, air, and oxygen in a dc electric field at various interelectrode distances L is studied experimentally. A scaling law for a low-pressure gas breakdown Udc=f(pL,L/R) is deduced. According to this scaling law, the breakdown voltage Udc is a function not only of the product of the gas pressure p and the gap length L, but also of the ratio of the gap length L to the chamber radius R. It is shown that, for any dimensions of the cylindrical discharge chamber (in the range of L/R under investigation), the ratio of the breakdown electric field to the gas pressure p at the minimum of the ignition curve remains constant: (Edc/p)min = const. A method for calculating the ignition curve in a cylindrical discharge chamber with arbitrary values of L and R is proposed.
Опис
Ключові слова
plasma physics, gas discharges
Бібліографічний опис
JETP Letters, Vol. 72, No. 2, 2000, pp. 34–37.