Accession Number : AD0286543

Title :   RESEARCH ON SOLID STATE RADIATION-INDUCED PHENOMENA

Corporate Author : WASHINGTON SQUARE COLL NEW YORK UNIV N Y

Personal Author(s) : KALLMANN,HARTMUT P.

Report Date : SEP 1962

Pagination or Media Count : 1

Abstract : Luminescent and photoconductivity measurements (the latter using a.c. impedance methods) were performed on a ZnS:Cu and ZnS:Ag phosphor under X-Ray excitation. These measurements were made during the rise, equilibrium, decay, and glow periods as well as under various conditions of infrared irradiation. These results clearly show that the usually accepted phosphor model (SchonKlassens) must be appreciably modified. Two series of ZnS/Cu:Cl phosphor powders are prepared; one series with the careful exclusion of O2, the second with O2 added to atmosphere during firing. All other preparative conditions are identical. Luminescence spectra, lumin scent glow curves, I.R. effects and electroluminescence of each phosphor are investigated.

Descriptors :   *ELECTRICAL CONDUCTIVITY, *LIQUEFIED GASES, *SEMICONDUCTORS, *SOLID STATE PHYSICS, *X RAYS, BENZENES, BRILLOUIN ZONES, CADMIUM COMPOUNDS, FLUORESCENCE, HIGH TEMPERATURE, IMPURITIES, MACHINING, NITROGEN, PHOTOCONDUCTIVITY, SINGLE CRYSTALS, ZINC

Distribution Statement : APPROVED FOR PUBLIC RELEASE