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A study to generate longer plasma channel was conucted to improve probability oftriggered lightning.To generate the long laser plasma channel,a strongly and a weakly ionizedplasma channels were used in series,a scheme called hybrid method.The strongly and the weaklyionized plasma channels were used for triggering an electrical leader and guiding the leader.Theelectrical leader propagated through the weakly ionized plasma.Then main discharge occurredbetween the electrodes.It is found that the streamer was accelerated with both the increase inthe plasma density and the increase in an ambient electric field close to the plane electrode.
A study to generate longer plasma channel was conucted to improve probability oftriggered lightning. To generate long laser plasma channel, a strongly and a weakly ionizedplasma channels were used in series, a scheme called hybrid method. Strongly and the weaklyized plasma channels were used for triggering an electrical leader and guiding the leader. The electrical leader propagated through the weakly ionized plasma. Main is occurred from the electrodes. It is found that the streamer was accelerated with both the increase inthe plasma density and the increase in an ambient electric field close to the plane electrode.