STUDY OF THE EFFECT OF X- AND GAMMA-RAYS ON THE ABSORPTION AND EXCITATION SPECTRA OF NaCl + AgCl, NaCl + TlCl AND NaCl + CuCl$sub 2$ SINGLE CRYSTALS

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

OSTI ID:4833495

Khalilov, A Kh; Mamedov, A P

Crystalline phosphors prepared of alkaline halide single crystals are useful for investigating the effect of the type and distribution of capture centers on the optical properties. Such a study was carried out by examining the absorption and excitation spectra of crystals irradiated with x-rays and gamma rays. Selective luminescence bands were formed by the stabilization of free electrons and voids on the capture centers in the lattice. The single crystals used had an activator concentration of 0.01 mole% and 1 mole %; a 50 kv and 10 milliamp W tube and a 2.5curie Co/sup 60/ source were used for the irradiation tests. Unexcited single crystals of NaCl did not show an absorption maximum. Three of the absorption maximum of the crystals containing the activator were present also in the pure crystals but in addition the following new absorption bands were found: for NaCl + Ag - lambda /sub max/ = 280, 305, 325 m mu ; for NaCl + Cu - 213, 235, 290 and 335 m mu ; for NaCl + Tl - 235 and 280 m mu . (TTT)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-031283
• OSTI ID: 4833495
• Journal Information: Trudy Inst. Fiz., Akad. Nauk Azerbaidzhan. S.S.R., Journal Name: Trudy Inst. Fiz., Akad. Nauk Azerbaidzhan. S.S.R. Vol. Vol: 10
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ABSORPTION
CAPTURE
COPPER CHLORIDES
CRYSTALS
DEFECTS
DISTRIBUTION
ELECTRIC CONDUCTIVITY
ELECTRONS
EXCITATION
GAMMA RADIATION
IMPURITIES
LATTICES
LUMINESCENCE
METALS, CERAMICS, AND OTHER MATERIALS
PHOSPHORS
RADIATION EFFECTS
RADIATIONS
SILVER
SODIUM CHLORIDES
SPECTRA
THALLIUM CHLORIDES
VOIDS