Discharging sequence of the ASVSSP. (a) Waveforms of the applied voltage and current of the pattern. (b) Rods. (c) Halos. (d) Spots. Panels (b)–(d) are correlated with current pulse phases ( Δ t 1 = 640 ns, Δ t 2 = 800 ns, and Δ t 3 = 1200 ns) in panel (a), and integrated over 50 voltage cycles to obtain sufficient light signals. (e) The frame is the superposition of panels (b), (c), and (d).