Accession Number : AD0685832

Title :   3200 ANGSTROM PHOSPHOR.

Descriptive Note : Quarterly rept. no. 2, 1 Oct-31 Dec 68,

Corporate Author : WESTINGHOUSE ELECTRIC CORP BALTIMORE MD AEROSPACE DIV

Personal Author(s) : Ogland,Jon W. ; Malarkey,Edward C. ; Natale,Michael R.

Report Date : APR 1969

Pagination or Media Count : 31

Abstract : Near optimum doping and firing procedure were determined for the lead-doped beta-CaSiO3, with the best sample showing an efficiency nearly twice that of previously prepared samples. Work on the lead-doped alpha-CaSiO3 and beta-Ca2SiO4 was discontinued, because of unsatisfactory progress, in favor of work on the more promising lead- and thallium-doped BaSi2O5. A lead-doped BaSi2O5 was synthesized which shows an efficiency approximately equal to that of the best lead- doped CaSiO3 produced. Thallium-doped BaSi2O5 synthesis was begun. Investigation of titanium dioxide-doped Zn2SiO4 was undertaken for the purpose of producing a 3800 A emitting phosphor to replace P-16. (Author)

Descriptors :   (*PHOSPHORESCENT MATERIALS, *DOPING), (*BARIUM COMPOUNDS, PHOSPHORESCENT MATERIALS), (*ZINC COMPOUNDS, PHOSPHORESCENT MATERIALS), SILICATES, CATHODE RAY TUBE SCREENS, LEAD(METAL), THALLIUM, TITANIUM, TEST METHODS, ULTRAVIOLET SPECTRA, VISIBLE SPECTRA, PHOTOELECTRIC EFFECT, X RAY DIFFRACTION

Subject Categories : Optics
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE