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Factors controlling the thermoluminescence spectra of rare earth doped calcium fluoride

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Finch_JL_Thermoluminescence_AAM.pdf (2.105Mb)
Date
04/2017
Author
Wang, Y.
Zhao, Y.
White, D.
Finch, A. A.
Townsend, P. D.
Keywords
Thermoluminescence
Calcium fluoride
Rare earth
Ion-size
GE Environmental Sciences
NDAS
Metadata
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Abstract
Thermoluminescence spectra of rare earth doped calcium fluoride samples, both powder and single crystal, were recorded over the temperature range from 25 K to 673 K. Although some broad band features exist, the spectra are dominated by the rare earth line transitions. The glow peak temperatures are slightly sensitive both to the ionic size of the dopants and the dopant concentration. By contrast, very considerable differences are generated by heat treatments, such as annealing followed by either fast or slow cooling. Comments are included on the reasons for such sensitivity in terms of association of dopant and intrinsic defect sites and why the results of dosimetry powder differ from those from single crystals.
Citation
Wang , Y , Zhao , Y , White , D , Finch , A A & Townsend , P D 2017 , ' Factors controlling the thermoluminescence spectra of rare earth doped calcium fluoride ' Journal of Luminescence , vol 184 , pp. 55-63 . DOI: 10.1016/j.jlumin.2016.12.011
Publication
Journal of Luminescence
Status
Peer reviewed
DOI
http://dx.doi.org/10.1016/j.jlumin.2016.12.011
ISSN
0022-2313
Type
Journal article
Rights
© 2016 Elsevier B.V. All rights reserved. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://doi.org/10.1016/j.jlumin.2016.12.011
Description
The authors would like to thank the support of the Fundamental Research Funds for the Central Universities of China (No.2-9-2015-191) and the National Nature Science Foundation of China (No.11205134).
Collections
  • Earth & Environmental Sciences Research
  • Scottish Oceans Institute Research
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/12334

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