Nano- and picosecond pulsers on the basis of FED and DRD

Summary form only given, as follows. FID technology has developed a new class of superpower closing switches with picosecond operation (FID) and opening switches (DRD) with nanosecond operation. Each of those devices allows switching voltage of tens and hundreds kilovolts with currents higher than 10kA. FID and DRD allowed to develop a series of pulsers with pulse width from 100ps to several hundreds nanoseconds. The pulse shape can be bell-shaped (Gaussian), square or bipolar. Pulse repetition frequency depends on the average power and is usually several kilohertz. There are modifications of the nanosecond pulsers with peak power 20-30MW and dimensions 150/spl times/120/spl times/60mm. The example are the pulsers FPG-HV and FPG-S-HF: maximum amplitude 1 - 10kV, pulse duration 0.1 - 1ns, rise time 100ps, PRF 100-500kHz.