Self-acceleration experiment of a strong electron beam in a ferrite accelerating structure

Investigation of megawatt magnetron injection guns with secondary-emission cathodes

“…On the other hand, the pulse rate here is limited by the actual designs of the storage capacitor and the switch. Furthermore, the longitudinal pulsed field distribution may alter due to the attenuation of the field as it diffuses through the walls of the resonators and the vacuum chamber (see, e.g., [9,11]). Finally, note that contaminants enter the cathode-anode gap owing to electron bombardment and deposition on the cathode surface during time intervals between the high-voltage pulses, so that vacuum breakdown of the gap may occur if the pulse rate is too low [12].…”