Accession Number : AD0438938


Title :   THIN-FILM COLD CATHODES FOR MICROWAVE TUBES.


Descriptive Note : Interim rept. no. 1,


Corporate Author : STANFORD RESEARCH INST MENLO PARK CALIF


Personal Author(s) : Geppert,D V ; Dore,B V


Report Date : May 1964


Pagination or Media Count : 41


Abstract : Several types of cathode substrates were investigated, including glass microscope slides, sapphire rods with Hanovia gold electrodes, molybdenum rods with M-24 glaze, and Kovar rods and sleeves with 7052 glass. Further studies of Mo-SiO-Mo barriers were made. Work is progressing towards realization of a compound oxide Schottky barrier using the oxides of zinc and magnesium. Studies were conducted on the metal surface films, including refractory low-work-function coatings. Vacuum emission tests using SiO barriers were made, and image tests using a phosphor screen indicate reasonably uniform emission current density. (Author)


Descriptors :   *COLD CATHODE TUBES , *TUNNELING(ELECTRONICS) , *CATHODES(ELECTRON TUBES) , TUNNELING(ELECTRONICS) , CATHODES(ELECTRON TUBES) , TUNNELING(ELECTRONICS) , GLASS , SAPPHIRE , GOLD , ELECTRODES , SILICON , MOLYBDENUM , MONOXIDES , SILICON COMPOUNDS , ZINC COMPOUNDS , METAL FILMS , SEMICONDUCTING FILMS , SANDWICH CONSTRUCTION , WORK FUNCTIONS , ELECTRIC CURRENT , MANUFACTURING , SURFACE PROPERTIES , OXIDES


Distribution Statement : APPROVED FOR PUBLIC RELEASE