ROLE OF DISLOCATION AND BOUNDARY GRAIN IN LUMINESCENCE OF ALKALI HALIDE PHOSPHORS

Journal Article · Fri Jan 01 04:00:00 EST 1960 · Trudy Inst. Fiz. i Astron., Akad. Nauk Eston. S.S.R.

OSTI ID:4099886

Gindina, R I

Microscopic studies were made of the role of dislocations and boundary grains in NaCl- Pb, KCl - Ag, KCl-Cu, KBrAu, KI - Tl, and NaCl-Pb and Mn. Crystal annealing, causing accumulation of admixtures on the grain surface, does not increase activation absorption and luminescence. Plastic deformation of KCl-- Tl, KBr--Tl, KI-Tl, and KBr-In crystals under 40 to 5O% compression does not affect the activation absorption. The luminescence of KI-TlI, KBrIn, and the anginstable system KCl-Cu is uniformly distributed in the crystalline lattice, indicating the luminescence is not related to the boundary grain. Hence, it is confirmed that activator ions distributed in the lattice are the principle centers of luminescence in alkali halide crystals. (R.V.J.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-007908
• OSTI ID: 4099886
• 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. 12
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ABSORPTION
COMPRESSION
COPPER
CRYSTALS
DEFECTS
DEFORMATION
DISLOCATIONS
DISTRIBUTION
GOLD
GRAIN BOUNDARIES
IMPURITIES
INDIUM
INSTRUMENTS
IONS
LATTICES
LEAD
LUMINESCENCE
MANGANESE
MICROSCOPY
PHOSPHORS
PHYSICS
POLYMERS
POTASSIUM BROMIDES
POTASSIUM CHLORIDES
POTASSIUM IODIDES
SILVER
SODIUM CHLORIDES
SURFACES
THALLIUM
THALLIUM IODIDES
TRACE AMOUNTS