Accession Number : AD0668530

Title :   STUDY OF THERMIONIC CONVERTER ELECTRODE SURFACES USING THE ELECTRON MIRROR MICROSCOPE.

Descriptive Note : Final rept. 15 Jul 64-14 Jul 67,

Corporate Author : LITTON SYSTEMS INC MINNEAPOLIS MINN APPLIED SCIENCE DIV

Personal Author(s) : Maffitt,Kent N.

Report Date : FEB 1968

Pagination or Media Count : 98

Abstract : Work function differences on polycrystalline tungsten are studied extensively by means of electron mirror microscopy. The Electron Mirror Microscope (EMM) is shown to be a sensitive tool for correlating cesium adsorption with surface defects. EMM image formation is discussed qualitatively. The instrument response to potential gradients was quantitatively measured as a function of EMM parameters. (Author)

Descriptors :   (*THERMIONIC CONVERTERS, ELECTRODES), (*ELECTRON MICROSCOPY, MEASUREMENT), SURFACES, MIRRORS, ABSORPTION, TUNGSTEN, DEFECTS(MATERIALS), OPTICAL IMAGES, INTENSITY, SENSITIVITY, GERMANIUM, CALIBRATION, GRAIN BOUNDARIES, LENSES, ELECTRIC FIELDS, IONS, VACUUM APPARATUS

Subject Categories : Electric Power Production and Distribution
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE