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)

(a) The axial and (b) radial ( z = 0.65 mm) density distributions of electron and ground state atomic oxygen at 10 ns with tip radius 100 μm and 200 μm, respectively.