Streams and plasma parameters experimental studies in He-CO gas mixtures

الملخص EN

DC glow discharges were generated between a thin cylindrical anode and a flat cathode, streamers are thought to propagate by photo-ionization ; the parameters of photo-ionization depend on the He : CO ratio.

Therefore we study streamers in He (90 %, 80 % and 70 %) with (10 %, 20 % and 30 %) CO respectively.

The streamer diameter is essentially the change by increase for similar voltage and pressure in all He-CO mixtures.