Thermoluminescence of KCl and KCl:LiCl crystals

Journal Article · Mon Oct 01 04:00:00 EDT 1973 · Ukr. Fiz. Zh. (Russ. Ed.), v. 18, no. 10, pp. 1744-1745

OSTI ID:4334240

Gorbenko, P K; Kovtun, A A; Popova, O A

The mechanism of the complete decoloration of high purity KCl crystals, x-irradiated at room temperature, is studied. One thermoluminescent peak with a maximum at 450 deg K is observed in the spectrum of the pure crystal. Two luminescent peaks at 360 and 480 deg K (all peaks of the first order) are detected on the thermoluminescent curve of x-irradiated mixed crystals of KCl + 1 mol % LiCl. Activation energies of 0.62, 0.58, and 3.12 eV correspond to the peaks at 360, 450, and 480 deg K respectively. The high-temperature thermoluminescent peaks of KCl: LiCl are characterized by very high parameters in comparison with the parameters of the thermopeaks of pure KCl. It is concluded that the total thermoluminescence of purc KCl proceeds as a result of diffusion and annihilation of hole centers with F centers provided the pure and impure x- irradiated crystals differ only by the hole components. (tr-auth)

• Research Organization: Kiev Polytechnical Inst.
• NSA Number: NSA-29-024843
• OSTI ID: 4334240
• Journal Information: Ukr. Fiz. Zh. (Russ. Ed.), v. 18, no. 10, pp. 1744-1745, Journal Name: Ukr. Fiz. Zh. (Russ. Ed.), v. 18, no. 10, pp. 1744-1745; ISSN UFIZA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

*LITHIUM CHLORIDES-- THERMOLUMINESCENCE
*POTASSIUM CHLORIDES-- THERMOLUMINESCENCE
ANNIHILATION
COLOR CENTERS
F CENTERS
HIGH TEMPERATURE
HOLES
MEDIUM TEMPERATURE
N50340* --Metals
Ceramics
& Other Materials--Plastics & Other Materials--Radiation Effects
PHYSICAL RADIATION EFFECTS
X RADIATION