- Title
- Thermoluminescence of the main peak in SrAl2O4: Eu2+, Dy3+: spectral and kinetics features of secondary emission detected in the ultra-violet region
- Creator
- Chithambo, Makaiko L
- Date Issued
- 2017
- Date
- 2017
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/124197
- Identifier
- vital:35575
- Identifier
- https://doi.org/10.1016/j.radmeas.2016.12.001
- Description
- We report the thermoluminescence of SrAl2O4:Eu2+,Dy3+ measured in the ultra-violet region of the spectrum between 300 and 400 nm. Complementary measurements of X-ray excited optical luminescence confirm emission bands of stimulated luminescence in this region. As a further test, optically stimulated luminescence was also measured in this region. The glow curve measured at 1 °C s−1 following irradiation to various doses appears simple and single but is in reality a collection of several components. This was shown by results from the Tm-Tstop method on both ends of the peak, application of thermal cleaning beyond the peak maximum as well as the dependence of the peak on fading. The latter shows that new peaks appear as preceding ones fade. Kinetic analysis of some of the main peaks was carried out giving an activation energy of 0.6 eV. The implication of the results on measurement of phosphorescence, interpretation of dose response and fading is discussed.
- Format
- 13 pages
- Format
- Language
- English
- Relation
- Radiation Measurements
- Relation
- Chithambo, M.L., 2017. Thermoluminescence of the main peak in SrAl2O4: Eu2+, Dy3+: Spectral and kinetics features of secondary emission detected in the ultra-violet region. Radiation Measurements, 96, pp.29-41.
- Relation
- Radiation Measurements volume 96 29 41 January 2017 1350-4487
- Rights
- Elsevier
- Rights
- Use of this resource is governed by the terms and conditions of the Science Direct Terms and Conditions Statement (https://www.elsevier.com/legal/elsevier-website-terms-and-conditions)
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RU Department of Physics and Electronics
SDG 09. Industry, Innovation and Infrastructure
Chithambo, Makaiko Liwiro (Prof)
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