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Effect of plastic deformation of the thermoluminescence of γ‐irradiated NaCl and KCl Crystals
Author(s) -
Chandra B. P.,
Elyas M.,
Kathuria S. P.
Publication year - 1983
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170180119
Subject(s) - thermoluminescence , irradiation , intensity (physics) , materials science , deformation (meteorology) , dislocation , spectral line , analytical chemistry (journal) , chemistry , optics , luminescence , composite material , optoelectronics , physics , nuclear physics , chromatography , astronomy
Abstract The overall thermoluminescence (TL) intensity of γ‐irradiated NaCl crystals initially increases and then decreases with the number of newly‐created dislocations. However, the overall TL intensity of γ‐irradiated KCl crystals increases with the increasing number of newly created dislocations. The TL spectra are recorded for different plastic deformations at different temperatures. It is found that the plastic deformation has no considerable effect on the TL spectra of γ‐irradiated NaCl and KCl crystals. Trap destruction model and trap competition model are discussed for the decrease in the TL intensity with deformation of the crystals. The physical ideas behind the increases in the relative intensity of glow peaks and the appearance of new glow peaks are explored.