Photoluminescence, optically stimulated luminescence, and thermoluminescence study of RbMgF{sub 3}:Eu{sup 2+}
Journal Article
·
· Journal of Applied Physics
- MacDiarmid Institute, Industrial Research, P.O. Box 31310, Lower Hutt, Wellington 5040 (New Zealand)
- School of Geography, Environment and Earth Sciences, Victoria University, P.O. Box 600, Wellington 6140 (New Zealand)
Optically stimulated luminescence (OSL) and thermoluminescence are observed in polycrystalline RbMgF{sub 3}:Eu{sup 2+} after x-ray, {gamma}-ray, or {beta} irradiation. The main electron traps are F-centers but there are other unidentified traps. The main hole traps at room temperature are probably Eu{sup 3+} and thermal or optical stimulation leads to electron-hole recombination at the Eu{sup 3+} site and Eu{sup 2+} emissions arising from {sup 6}P{sub J} to {sup 8}S{sub 7/2} and 4f{sup 5}d(E{sub g}) to {sup 8}S{sub 7/2} transitions. We find that some of the electron traps can be emptied by infrared stimulation and all of the electron traps can be emptied by white light stimulation. The OSL dark decay is long and exceeds 5 days for traps that are emptied by white light stimulation after initial infrared bleaching. Our results show that this compound can be used as a radiation dosimeter for intermediate dose levels where the {sup 87}Rb self-dose does not significantly affect the dose reading.
- OSTI ID:
- 21185974
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 2 Vol. 105; ISSN JAPIAU; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
Similar Records
Optically stimulated luminescence in NaMgF{sub 3}:Eu{sup 2+}
Gamma ray induced thermoluminescence properties of Eu{sup 3+} doped SnO{sub 2} phosphor
Synthesis and luminescence properties of KSrPO{sub 4}:Eu{sup 2+} phosphor for radiation dosimetry
Journal Article
·
Mon Sep 17 00:00:00 EDT 2007
· Applied Physics Letters
·
OSTI ID:21013621
Gamma ray induced thermoluminescence properties of Eu{sup 3+} doped SnO{sub 2} phosphor
Journal Article
·
Thu Oct 15 00:00:00 EDT 2015
· Materials Research Bulletin
·
OSTI ID:22475945
Synthesis and luminescence properties of KSrPO{sub 4}:Eu{sup 2+} phosphor for radiation dosimetry
Journal Article
·
Fri May 06 00:00:00 EDT 2016
· AIP Conference Proceedings
·
OSTI ID:22606535