Issue
J. Phys. Colloques
Volume 40, Number C7, Juillet 1979
XIVe Conférence Internationale sur les Phénomènes d'Ionisation dans les Gaz / XIVth International Conference on Phenomena in Ionized Gases
Page(s) C7-219 - C7-220
DOI https://doi.org/10.1051/jphyscol:19797108
XIVe Conférence Internationale sur les Phénomènes d'Ionisation dans les Gaz / XIVth International Conference on Phenomena in Ionized Gases

J. Phys. Colloques 40 (1979) C7-219-C7-220

DOI: 10.1051/jphyscol:19797108

IONIZATION OF GASES IN STRONG ELECTROMAGNETIC FIELDS

S.G. Arutyunyan1, I.R. Gekker2, D.M. Karfidov2 et A.A. Ruchadze2

1  Lebedev Physical Institute of the U.S.S.R. Academy of Sciences, Plasma Physics Laboratory, Moscow, U.S.S.R.
2  Lebedev Physical Institute of the U.S.S.R. Academy of Sciences, Plasma Physics laboratory, Moscow, U.S.S.R.


Abstract
A qualitative theory of gas breakdown had been developed for the conditions when the average energy of electron oscillations in an alternating field [MATH] exceeds the ionization potential of atoms I. The dependence of the growth rate of ionization [MATH] on ε0( ε0=102-104eV) is presented. Experimental investigations on the development of microwave breakdown in helium, argon and air have been conducted, in the region of E00 =1.5.10-8. 10-7V.s/cm (ε0=0.1-300eV) and pressures p=5.10-4-10-3torr. Satisfactory agreement between calculated and experimental dependences has been observed for ε0>>I.