Accession Number : ADD015555

Title :   Microchannel Electron Source.

Descriptive Note : Patent, Filed 4 Apr 91, patented 21 Jul 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Boulais, Kevin ; Choe, Joon

Report Date : 21 Jul 1992

Pagination or Media Count : 8

Abstract : A microchannel plate device utilizing a semiconducting bulk material is characterized by electron emissions of high output current density and efficiency. The channel passages in the plate device which are square in cross-section accommodates a larger open area ratio at the input and output plate surfaces. An extended range of high electron emission applications for the plate device is provided. Such applications may include a photocathode installation to which a modulation pulse input is applied under low voltages isolated from high post-accelerating voltages.

Descriptors :   *ELECTRONS, *MICROCHANNEL PLATES, *PATENTS, BULK MATERIALS, CHANNELS, CROSS SECTIONS, CURRENT DENSITY, DENSITY, EFFICIENCY, ELECTRON EMISSION, EMISSION, INPUT, INSTALLATION, MATERIALS, MODULATION, OUTPUT, PHOTOCATHODES, PLATES, PULSES, RATIOS, SURFACES, VOLTAGE, SOURCES, SEMICONDUCTORS

Subject Categories : Electrical and Electronic Equipment
      Nuclear Physics & Elementary Particle Physics
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE