Engineering Physics Annotation << Back PHYSICAL CONDITIONS FOR THE CREATION OF A RECOMBINATION LASER USING THE PLASMA OF THE INITIAL STAGES OF THE BREAKDOWN OF HIGH PRESSURE GASES O.A. OMAROV, N.O. OMAROVA, P.Kh. OMAROVA Optical pictures of the formation of a high-current discharge in inert gases were investigated. The mechanisms of the continuous propagation of a plasma streamer (in He at a bulk energy density ω≤0.3 J/m3-p = 805 Torr, d = 0.01 m, and in Ar at a bulk energy density ω≤0.048 J/m3-p = 800 Torr, d = 0.01 m) and the pulsating brightness of the streamer propagation in an external strong magnetic fi eld with velocities υ ~ υ~105 m/s, and υ ~ 106 m/s. It is shown that the process of formation of the streamer and the development of the spark channel is affected by an external strong magnetic fi eld of intensity up to 32·106 A/m, which accelerates the development of streamer stages of breakdown and reduces the expansion rates of the channel, with a corresponding decrease in the integrated, radiated energy. Spectral measurements have shown that an increase in the temperature and electron concentration of the spark channel is observed in a magnetic fi eld. It should be specially noted that the appearance of new spectral lines in an external strong magnetic fi eld. The paper discusses the possibility of creating a laser on an intensively recombining plasma at the initial stage of breakdown of high-pressure gases. Key words: spark discharge, streamer, optical picture, eopogram, overvoltage. Contacts: E-mail: inporao@mai.ru Pp. 28-37.