Numerical simulation of a direct current glow discharge in atmospheric pressure helium

Yin Zeng-Qian¹, Wang Yan^{1, 2}, Zhang Pan-Pan², Zhang Qi², Li Xue-Chen^{2, †,}

Spatial distributions of the electron density, the ion density, and the electric field at different times: (a) 0.3 μs, (b) 0.9 μs, (c) 3.0 μs, and (d) 20.0 μs. Other parameters: d_g = 4 mm, U = 3 kV, and R = 100 kΩ.