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Compact Pulsed-Power Driver for Double Pulse Effect Studies in Nanosecond Laser Ablation

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5 Author(s)
Sharma, S.K. ; Energetics & Electromagn. Div., Bhabha Atomic Res. Centre, Visakhapatnam, India ; Deb, P. ; Kumar, R. ; Sharma, A.
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High-voltage double pulse of nanosecond duration (~ hundreds of nanoseconds) with extremely short interval (~ tens of nanoseconds) between the pulses can be used to study the double pulse effect in nanosecond laser ablation for laser-induced breakdown spectroscopy. A 0.5-GW compact pulsed-power driver is designed using the transmission line characteristics of the pulse forming line to generate two pulses with extremely short repetition interval. The impedance of the pulsed-power driver is 22 Ω, and it generates two flat top high-voltage pulses of 100 kV, 100 ns duration with a interpulse repetition interval of 30 ns across the matched load.

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Plasma Science, IEEE Transactions on  (Volume:41 ,  Issue: 10 )