A computational modeling study on the helium atmospheric pressure plasma needle discharge
Qian Mu-Yang†a), Yang Cong-Yingb), Liu San-Qiua), Wang Zhen-Donga), Lv Yana), Wang De-Zhenc)
       
The total ionization rates (including R3–R6, R29, R36, R46–R49 in Table  3 ) of plasma needle discharge at 6.5 ns, (a) 0.2 SLM and tip radius 100 μm; (b) 0.2 SLM and tip radius 200 μm; and (c) 0.8 SLM and tip radius 200 μm.