The development of a self-sustained volume gas discharge is studied numeric
ally. Special attention is paid to the formation and stability of the catho
de sheath. It is shown that the high-voltage threshold for the ignition of
a volume discharge is determined by the onset of cathode sheath instability
. The methods for suppressing cathode sheath instability are discussed. (C)
2000 MAIK "Nauka/ Interperiodica".