Figure 3
From: Plasma “bullet” with hollow structure: formation and evolution
Applied voltage waveform: (a) AC with the frequency of 23 kHz. (b) Positive pulse with the frequency of 0.5 Hz.
Figure 3 | Scientific Reports
From: Plasma “bullet” with hollow structure: formation and evolution
Applied voltage waveform: (a) AC with the frequency of 23 kHz. (b) Positive pulse with the frequency of 0.5 Hz.
