Accession Number : AD0641674

Title :   ULTRAVIOLET GENERATOR STUDY.

Descriptive Note : Final rept. 1 Jul 65-30 Jun 66,

Corporate Author : ITT INDUSTRIAL LABS FORT WAYNE IND

Personal Author(s) : Sisneros,T. E. ; Davis,J. A.

Report Date : SEP 1966

Pagination or Media Count : 71

Abstract : UV emitting cathodoluminescent phosphors were prepared and evaluated for emission wavelength, output power at high input power levels, aging characteristics, and decay time. Host materials studied were the zinc magnesium sulfide and several oxygen-dominated systems. A commercial P-16 phosphor was used as a standard against which the experimental samples were compated. Several lead-activated silicates were found to be superior to P-16 with respect to output power capability and aging characteristics. Ca3Si2O7:Pb with peak emission at 380 nm has output power at high input power equal to that of P-16 and equivalent or better aging characteristics. BaSi2O5:Pb with peak emission at 355 nm and BaZnSi4O10:Pb with peak emission at 305 nm have exhibited output power 25-50% higher than P-16 with superior aging characteristics. All of these materials have decay times (to the 1/e level) of 0.2-0.3 microsec which is about four times that of P-16. (Author)

Descriptors :   (*ULTRAVIOLET EQUIPMENT, GENERATORS), PHOSPHORESCENT MATERIALS, LUMINESCENCE, CATHODE RAY TUBES, AGING(MATERIALS), ULTRAVIOLET RADIATION

Subject Categories : Miscellaneous Materials
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE