J. Phys. Colloques
Volume 40, Numéro C7, Juillet 1979XIVe Conférence Internationale sur les Phénomènes d'Ionisation dans les Gaz / XIVth International Conference on Phenomena in Ionized Gases
|Page(s)||C7-369 - C7-370|
J. Phys. Colloques 40 (1979) C7-369-C7-370
INVESTIGATIONS OF INSTABILITIES IN A NON-SELF-SUSTAINED REPETITIVELY PULSED DISCHARGEA.A. Kostylev, V.I. Perevodchikov, A.P. Terentyev, K.N. Ulyanov et V.A. Fedorov
All-Union Electrotechnical Institute, Moscow U.S.S.R.
Non-self-sustained discharges are known to be unstable. Instabilities which limit the maximum energy input in pulsed modes of operation may develop in different ways. At asufficiently high discharge voltage an instability which occurs during a current pulse can be observed. The mechanism of this instability has already been studied in detail. At 1ower discharge voltages instability may develop vihen the external source of ionization has been turned off. As a result the discharge voltage should be decreased fuather. This leads to a reduced energy input per pulse in a CO2 repetitively pulsed laser when the frequency is high or the gas velocity is small [1, 2].