Influence of dust particles on ionization and excitation in neon dc discharge

30th International Conference on Interaction of Intense Energy Fluxes with Matter

Shumova, V.V.^1 ; Polyakov, D.N.^1 ; Vasilyak, L.M.^1

Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13, Moscow

125412, Russia^1

关键词: Dc discharges;    De-excitations;    Dusty plasmas;    Electric field strength;    Ionization rates;    Metastable atoms;    Metastable neon;    Positive column;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/653/1/012132/pdf
DOI  :  10.1088/1742-6596/653/1/012132

来源: IOP

【 摘 要 】

The influence of dust particles on the concentration of metastable neon atoms and ionization was investigated using the developed drift/diffusion model for plasma of positive column of glow discharge. The detailed de-excitation in neon was considered. In addition to usual plasma losses in dusty plasmas, the quenching of metastable atoms on dust particle surface was considered. The strong influence of dust particles on the ionization rate and concentration of metastable neon atoms in a positive column of glow discharge is shown to result from the change in the longitudinal electric field strength.