Accession Number : AD0430212


Title :   RESEARCH STUDY FOR INCREASING THE SENSITIVITY OF PHOTOEMITTERS.


Descriptive Note : Quarterly technical rept. no. 8, 1 Oct-31 Dec 63,


Corporate Author : DAVID SARNOFF RESEARCH CENTER PRINCETON NJ


Personal Author(s) : Simon, R E ; Sommer, A H ; McCarroll, W H ; Fuselier, C R


Report Date : 16 Jan 1964


Pagination or Media Count : 33


Abstract : Research was continued on a study of the physical and structural properties of photoemitting materials, the development of procedures for producing improved photocathodes, and the possibilities of field induced photoemitters. Experiments have shown that it is possible to replace sodium in Na3Sb by K to produce Na2KSb without further deposition of Sb. Attempts to make multi-alkali cathodes with Rb were not successful. Replacement of antimony by other metals in the cesium processing of multi-alkali photocathodes had no beneficial effect. Molecular beam production of photocathodes by quasi-simultaneous deposition was limited by inaccuracy in beam calibration. Application of electron diffraction to cathodes formed by the molecular beam method showed that diffraction studies can yield information on multi-phase systems. Greatly improved p-n junctions with sharp reverse characteristics were produced for use as field induced photoemitters. (Author)


Descriptors :   *PHOTOCATHODES , PROCESSING , PHYSICAL PROPERTIES , POTASSIUM COMPOUNDS , SODIUM COMPOUNDS , ANTIMONY COMPOUNDS , MANUFACTURING , ALKALI METAL COMPOUNDS , MOLECULAR BEAMS , VAPOR PLATING , ELECTRON DIFFRACTION , PHOTOELECTRIC EFFECT , CESIUM , VAPOR PRESSURE , RUBIDIUM COMPOUNDS


Distribution Statement : APPROVED FOR PUBLIC RELEASE