SENSITIZED LUMINESCENCE IN ALKALI HALIDE CRYSTALS ACTIVATED WITH MERCURY- LIKE ACTIVATORS AND MANGANESE

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

OSTI ID:4839816

Shvarts, K K; Zirnitis, U A

In the phosphor KCl--Tl, Pb the luminescence of Pb/sup 2+/ may be observed on excitation of Tl/sup +/. The transfer of energy is conditioned by reabsorption. In phosphors with KCl and NaCl matrix material the possibility of the transfer of energy from Tl/sup +/, In/sup +/, Ga/sup +/, Pb/sup 2+/, Sn/sup 2+/ to Mn/sup 2+/ was e xamined. The effective transfer of energy to Mn/sup 2+/ was observed only from Pb/sup 2+/ in KCl and from Pb/sup 2+/, Tl/sup +/, and In/ sup +/ in NaCl. It is s hown that the phenomenon of sensitized luminescence in the systems KCl-- Pb, Mn and NaCl--Pb, Mn is due to local concentrations of Pb and Mn in some regions. Hence the effect of sensitization in these systems greatly depends on the physico-chemical state of the crystal phosphor. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-031433
• OSTI ID: 4839816
• 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. 11
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ABSORPTION
ALKALI METALS
CRYSTALS
ENERGY
EXCITATION
GALLIUM
HALIDES
IMPURITIES
INDIUM
IONS
LEAD
LUMINESCENCE
MANGANESE
MERCURY
PHOSPHORS
PHYSICS
POTASSIUM CHLORIDES
SODIUM CHLORIDES
THALLIUM
TIN