A brief description and important conclusions are given on work done at the Electronics Research Laboratory of the University of California for the Wright Air Development Division during the period December 15, 1959, through December 15, 1960. The work includes theoretical and experimental studies on high-temperature plasmas and the containment thereof, electron beams, fast-wave interaction with electron streams, solid-state and electron-beam parametric amplifiers, backward-wave interaction with waves on a ferrite rod or in plasmas, large-signal effects in traveling-wave tubes, and novel fast space-charge wave devices.

A brief description and important conclusions are given on work done at the Electronics Research Laboratory of the University of California for the Wright Air Development Division during the period December 15, 1959, through December 15, 1960. The work includes theoretical and experimental studies on high-temperature plasmas and the containment thereof, electron beams, fast-wave interaction with electron streams, solid-state and electron-beam parametric amplifiers, backward-wave interaction with waves on a ferrite rod or in plasmas, large-signal effects in traveling-wave tubes, and novel fast space-charge wave devices. (Author).

Offers detailed discussions of operating principles of helix and coupled-cavity traveling wave tubes, descriptions of RF interactions of electrons with electric fields, and the basic theories of electron bunching and traveling wave interactions.

Get up-to-speed on the theory, principles and design of vacuum electron devices.

Written by an internationally recognized as an expert on the subject of microwave (MW) tubes, this book presents and describes the many types of microwave tubes, and despite competition from solid-state devices (those using GaN, SiC, et cetera), which continue to be used widely and find new applications in defense, communications, medical, and industrial drying. Helix traveling wave tubes (TWTs), as well as coupled cavity TWTs are covered. Klystrons, and how they work, are described, along with the physics behind it and examples of devices and their uses. Vacuum electron devices are explained in detail and examines the harsh environment that must exist in tubes if they are to operate properly. The secondary emission process and its role in the operation of crossed-field devices is also discussed. The design of collectors for linear-beam tubes, including power dissipation and power recovery, are explored. Discussions of important noise sources and techniques that can be used to minimize their effects are also included. Presented in full color, this book contains a balance of practical and theoretical material so that those new to microwave tubes as well as experienced microwave tube technicians, engineers, and managers can benefit from its use.

A general nonlinear multi-dimensional interaction theory is employed to analyze Brillouin focused beams in klystrons and traveling-wave amplifiers. Harmonic currents and beam spread are found for a number of different situations. Closed-form solutions are being sought for the nonlinear equations. Beam stability in the presence of r-f and velocity distribution effects on the start-oscillation conditions of BWO's are two specific problems where these solutions are to be applied. Experimental programs to check these analyses are described. An appropriate taper on a ring-and-bar circuit for obtaining phase-focused operation is presented. Progress on the magnetron injection gun computer program is described. The trajectory starting problem appears to be solved, while further work on establishing the proper current density from the cathode is indicated. Provisions in the relativistic electron beam computer program for self-induced effects are also described. The status of the UHF helix-magnetron injection gun device is summarized. Performance data of the gun in a beam analyzer is presented. (Author).