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LET dependence of thermoluminescent efficiency and peak height ratio of CaF2:Tm

Authors
Publisher
Elsevier Ltd
Publication Date
Volume
43
Identifiers
DOI: 10.1016/j.radmeas.2007.12.015
Keywords
  • Thermoluminescence
  • Efficiency
  • Calcium Fluoride

Abstract

Abstract First-order thermoluminescence (TL) kinetics computerized glow curve deconvolution (CGCD) and manual analysis of the composite peak structures have been applied to study the behaviour of glow peaks 3 and 5 in CaF 2:Tm (TLD-300, Harshaw-Thermo Fisher Scientific) single crystals after heavy charged particle (HCP) irradiation with respect to Co 60 gamma rays for a linear energy transfer (LET) interval from 2.3 to 339.4 keV μ m - 1 . The ratio of peak 5 to peak 3 heights can be used to evaluate effective LET and correct measured doses for TL efficiency. The applicability of this idea to dose equivalent estimation in exotic radiation fields of complex composition is discussed critically.

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