The delay and jitter characteristics of laser-triggered multistage switch: A parametric study

The dependence of delay and jitter of a 200-kV laser-triggered multistage multichannel switch on the experimental parameters is reported. The experimental results are explained by a 0-D model in which the delay of the laser-triggered gap is calculated by a "2-2" model and the delay of the self-fired gaps is calculated by Martin's formula. The delay and the jitter decrease with the increase of energy of laser pulse, voltage, and pressure or the decrease of the percentage of SF6 in SF6-N-2 mixtures. The delay of 200-kV switch is less than. 28 ns, and the jitter is less than 1 ns.