Time resolved images of plasma bullet for different electrode gaps

Summary form only given. In the last few decades, there has been a huge advance in atmospheric pressure plasma research; many plasma devices have been constructed and analyzed using various diagnostic techniques. One of the promising devices is atmospheric pressure plasma jet operating in the plasma bullet mode with applied frequencies varying from 5 to 120 kHz and applied voltages can be in sinusoidal or pulsed [1, 2]. Several authors report that the plasma jet that is formed is not continuous.