Accession Number : AD0164766
Title : Tunnel Electron Emitter Cathode.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C
Personal Author(s) : Caldwell,Larry V. ; Miller,Brian S.
Report Date : 19 DEC 1972
Pagination or Media Count : 4
Abstract : The patent describes a high efficiency tunnel electron emitter in which a unique emitting layer is applied to the insulator layer of a metal-insulator-emitting layer structure. The emitting layer consists of a low work function material such as cesium that is deposited directly on the insulator layer, a thin layer of a conductive metal that is deposited onto the cesium, and an exposed surface of the conductive metal having a layer of cesium oxide applied thereto to lower the work function. The amount of cesium deposited on the insulator layer is critical and is monitored for the proper amount during deposit.
Descriptors : *Cathodes, *Patents, Electrons, Emitters, Tunneling(Electronics), Cesium, Aluminum, Silver, Gold, Antimony, Semiconductors
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE