L-3 Communications Electron Technologies, Inc.

John P Vaszari

Ronald G Brownell

A traveling-wave tube system and a method for protecting a cathode of a traveling-wave tube system. The system has an electron gun and a power supply that applies an electric potential between a cathode and an anode of the electron gun to generate a beam of electrons. The beam of electrons passes through a passage of a slow-wave structure. A collector electrode collects electrons from the beam of electrons generating a flow of current that flows through an ion trap power supply circuit to generate a DC voltage that is applied to the anode to repel positive ions generated.

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Rancho Palos Verdes, CA, United States of America

John P Vaszari