A computational modeling study on the helium atmospheric pressure plasma needle discharge

Qian Mu-Yang†^a), Yang Cong-Ying^b), Liu San-Qiu^a), Wang Zhen-Dong^a), Lv Yan^a), Wang De-Zhen^c)

Typical streamer propagations with needle tip radius 100 μm (panels (a)–(c)) and 200 μm (panels (d)–(f)) at 4.5 ns after the start of the 4.0 kV pulse.