TUNNEL CATHODES FOR MICROWAVE TUBES.
STANFORD RESEARCH INST MENLO PARK CALIF
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This program consisted of a theoretical and experimental study of the electron emission into vacuum from metal-insulator-metal M-I-M sandwiches. Analyses are presented for the con duction mechanisms through thin insulating films, for the generation of hot electrons in M-I-M structures, for the transport of hot electrons through thin metal films, and for the emission into vacuum of hot electrons in metal. Details are presented of the work on various combinations of metals and insulators in experimental M-I-M cathodes. Recommendations for future work are made. Author