Long-Duration Pulser to Simulate CW Operation

摘要

An electronic switch or pulser has been designed to evaluate crossed-field tubes, such as the HDL-developed 'Rotatron.' Feasibility of the pulser design has been proved in simulating CW operation of the Rotatron. The design concept is based on intermittently operating the tube, so that the beam of the injection gun is turned on and off repeatedly by applying a voltage to the control anode. The Rotatron investigation was made at 60 pps with a duty factor of 10 per cent. Also described is a modified pulser with improved pulse shape. This pulser has performed relatively well as a modulator for plate pulsing a microwave triode oscillator at X-band at 1000 pps and a duty factor of 50%. (Author)