Premium
Lyoluminescence, thermoluminescence and mechanoluminescence studies in γ‐ray irradiated Dy 3+ activated potassium chloride phosphor for accidental radiation dosimetry
Author(s) -
Bhujbal P. M.,
Dhoble S. J.
Publication year - 2011
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.1358
Subject(s) - mechanoluminescence , thermoluminescence , phosphor , dosimetry , radiochemistry , irradiation , dosimeter , thermoluminescent dosimetry , chemistry , thermoluminescent dosimeter , luminescence , analytical chemistry (journal) , nuclear chemistry , materials science , nuclear medicine , optoelectronics , chromatography , medicine , physics , nuclear physics
The lyoluminescence (LL), thermoluminescence (TL) and mechanoluminescence (ML) of γ‐ray‐irradiated coloured powder of KCl:Dy (0.05–0.5 mol%) phosphors are reported in this paper. To understand the mechanism of LL and ML, the LL and ML spectra are compared with TL studies. The variation of intensity of respective luminescence with different γ‐ray doses and with different concentrations of Dy 3+ ion doped in KCl is found to be similar in nature. The intensities differ from each other, but their nature is found to be similar with γ‐ray exposures. The ML glow peak intensity is linear up to high 1 kGy exposure as compared to LL (up to 0.5 kGy) and TL (up to 0.75 kGy) techniques. Therefore, according to our results, the recommendation is that KCl:Dy (0.1 mol%) phosphor prepared by wet chemical technique is useful for high‐dose measurements using the ML technique for accidental radiation dosimetry. Copyright © 2011 John Wiley & Sons, Ltd.