Development and Testing of Variable Pulsewidth High-Voltage Generator for Generating High-Intense Electron Beam

A high-voltage repetitive pulsed power supply (PPS) with variable pulsewidth has been designed and developed for generating high-intense electron beams suitable for high RF applications. In this present work, a new passive method is proposed using a suitably designed Marx generator and peaking capacitor. System parameters along with the operating pressure of the peaking switch are designed to achieve the variable pulsewidth at an operating voltage higher than 300 kV and a repetition rate of 100 Hz. Based on this concept, a system is designed, developed, and tested at a voltage of 300 kV with a load current of 5 kA. The variable pulsewidth of 115–204 ns has been achieved from the same PPS and with the same load.