Experimental and numerical study of modulation of ionization front propagation velocity in µs helium plasma gun discharge with nitrogen admixture
Résumé
This work reports on experimental and numerical analysis of the effect of nitrogen admixture on the development of helium based atmospheric pressure discharge produced by the Plasma Gun in long dielectric tubes. Besides, the drastic extension of discharge propagation length, reactive species generation can be tailored to specific applications while keeping electric field properties quite constant. This might afford unique opportunities to study specific action of the different plasma components for biomedical applications. Good agreement was found with recently developed model calculations, emphasising the key role of plasma kinetics on the ionization level of the plasma stream connecting the ionization front with the powered electrode of the DBD reactor.