ON THE ROLE OF GRAIN BOUNDARIES AND DISLOCATIONS IN THE LUMINESCENCE OF ACTIVATED ALKALI HALIDE CRYSTALS

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Trudy Inst. Fiz. i Astron., Akad. Nauk Eston. S.S.R.

OSTI ID:4802074

Gindina, R I

A microscopic investigation was made of the emission topography of alkali halide crystals. The effect of thermal treatment and defects, generated by plastic deformation or by x-irradiation and subsequent bleaching, on the formation of luminescence centers in alkali halide crystals was examined. It was concluded that the luminescence of typical alkali halide phosphors is not connected with the activator particles that are situated on the boundaries of grains whose dimensions are 0.1 to 0.01 mm. Most of the luminescence centers evidently correspond to the activator ions in substitutional sites, and the more complex centers correspond to the activator ions in clusters with point defects of the lattice. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-010744
• OSTI ID: 4802074
• Journal Information: Trudy Inst. Fiz. i Astron., Akad. Nauk Eston. S.S.R., Journal Name: Trudy Inst. Fiz. i Astron., Akad. Nauk Eston. S.S.R. Vol. Vol: No. 14
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ACTIVATION
ALKALI METALS
BLEACHING
COLOR
CRYSTALS
DEFECTS
DEFORMATION
GRAIN BOUNDARIES
HALIDES
IRRADIATION
LATTICES
LUMINESCENCE
MEASURED VALUES
PHOSPHORS
PHYSICS
STABILITY
THERMAL STRESSES
X RADIATION