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Fig. 6.
Fig. 6. Applied voltage and discharge current waveforms in the case of the helium discharge with a fixed input voltage of 1.25 kV and frequency of 10 kHz. (a) 53.6, (b) 156.7, (c) 256.3, and (d) 352.6 Torr.
Applied Science and Convergence Technology 2020;29:170~175
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