Accession Number : AD0427115


Title :   INVESTIGATION OF NEW CONCEPTS FOR MICROWAVE POWER GENERATION (LASER STUDIES)


Descriptive Note : Final technical documentary rept.


Corporate Author : CORNELL UNIV ITHACA NY SCHOOL OF ELECTRICAL ENGINEERING


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/427115.pdf


Report Date : Dec 1963


Pagination or Media Count : 116


Abstract : An experimental and theoretical investigation of the emission of electrons, ions, and vertical particles from a tungsten cathode which is surface-heated by a laser beam is described. Principal emphasis is given the phenomenon of electron emission because of the interest in its application to the formation of a very dense electron beam. Two different experimental approaches are taken in obtaining electron emission. The first approach is to collect electrons which are ''boiled off'' the surface the laser beam strikes, while the second approach is to use a very thin tungsten ribbon to collect electrons from the surface opposite the one the laser beam strikes. Preliminary theoretical work describing these phenomena is discussed.


Descriptors :   *ELECTRON BEAMS , *GAS DISCHARGES , DIODES , IONS , SINGLE CRYSTALS , ELECTRICAL CONDUCTIVITY , SURFACES , ELECTRONS , CATHODES , LASER APPLICATIONS , OXIDES , HEATING , PHOTONS , BEAMS(RADIATION) , TUNGSTEN , MICROWAVE FREQUENCY , EMISSIVITY , THERMIONIC EMISSION


Subject Categories : Radiation and Nuclear Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE