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 ldquo2-2rdquo 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 SF₆ in SF₆-N₂ in mixtures. The delay of 200-kV switch is less than 28 ns, and the jitter is less than 1 ns.