Numerical studies on dynamical resistance of gap switch

Summary form only given. The impacts of gap switch dynamical resistances R_s(t) on the transient performances of pulsed power system are examined through numerical simulations. It is based on the Rompe and Weisel (R&W) model[1] along with gap breakdown physics under both static overvoltage and pulsed triggering conditions. Field enhancement factor for non-uniform field E attributed from various configurations of gap electrodes and gap medium breakdown parameters, like reduced ionization coefficients alpha/p, are programmed in computer code [2]. Electron swarm parameters for ionization, attachment, and diffusion coefficients are parametrically interpreted for electron drift velocities as function of reduced electric fields E/N. Weighted with composition ratios for selective gas mixtures, electron mobilities, mu_e(E/N), are then explicitly integrated into the energy balance coefficient a(mu_e), dynamically varied with pulsing fields strengths and correlated implicitly with electron transport properties.