THERMOLUMINESCENCE OF KCL-EU2-IRRADIATION AT DIFFERENT TEMPERATURES( UNDER ULTRAVIOLET)

Authors
DECARCER IA ROWLANDS AP JAQUE F TOWNSEND PD
Citation
Ia. Decarcer et al., THERMOLUMINESCENCE OF KCL-EU2-IRRADIATION AT DIFFERENT TEMPERATURES( UNDER ULTRAVIOLET), Radiation measurements, 29(2), 1998, pp. 203-208
Citations number
14
Categorie Soggetti
Nuclear Sciences & Tecnology
Journal title
Radiation measurements → ACNP
ISSN journal
13504487
Volume
29
Issue
2
Year of publication
1998
Pages
203 - 208
Database
ISI
SICI code
1350-4487(1998)29:2<203:TOKADT>2.0.ZU;2-2
Abstract
The thermoluminescence of KCl:Eu2+ ultraviolet irradiated samples has been studied at different temperatures with the aim of optimising its' solar dosimetric characteristics. This was achieved by recording with a dosimeter -10 degrees C. Ultraviolet light (254 nm) irradiation und er these conditions produces a high TL peak at 90 degrees C which is l inear with exposure time over at least four orders of magnitude. The T L emission spectra of KCl:Eu2+ under UV irradiation have been analysed to reveal component bands at 2.86 eV, 2.97 eV, 3.02 eV, 3.07 eV, 3.14 eV and 3.26 eV that corresponds to divalent europium impurity sites. The new peak at 3.26 eV (297 nm) had not reported before but it has to be considered in order to match the experimental TL emission. A model for the defect site of this new emission is discussed. (C) 1998 Elsev ier Science Ltd. All rights reserved.