Phototransferred thermoluminescence of synthetic quartz: analysis of illumination-time response curves

Chithambo, Makaiko L; Niyonzima, P; Kalita, Jitumani M

Title: Phototransferred thermoluminescence of synthetic quartz: analysis of illumination-time response curves
Creator: Chithambo, Makaiko L
Creator: Niyonzima, P
Creator: Kalita, Jitumani M
Date Issued: 2018
Date: 2018
Type: text
Type: article
Identifier: http://hdl.handle.net/10962/111020
Identifier: vital:33364
Identifier: https://doi.org/10.1016/j.jlumin.2018.02.029
Description: Phototransferred thermoluminescence (PTTL) induced in synthetic quartz by 470 nm blue light is reported. The glow curve measured at 5 °C/s up to 500 °C after irradiation to 100 Gy shows six peaks at 94, 116, 175, 212, 280 and 348 °C labelled I through VI and another one at 80 °C (labelled A1). PTTL is only observed for peaks A1 and I and is induced at peak A1 as long as peak III has been removed by preheating and at peak I after preheating to deplete peak VI. The inducement of PTTL even when all peaks have been removed points to deep electron traps in the quartz also acting as donors in addition to the putative ones below 500 °C. The PTTL intensity as a function of duration of illumination for A1 goes through a peak and decreases monotonically or to a stable value depending on the preheating temperature. The change of PTTL intensity as a function of illumination time is described using a set of coupled linear differential equations. The number of acceptors and donors in a particular system described in this way is influenced by the preheating temperature.
Format: 9 pages
Format: pdf
Language: English
Relation: Journal of Luminescence
Relation: Chithambo, M.L., Niyonzima, P. and Kalita, J.M., 2018. Phototransferred thermoluminescence of synthetic quartz: Analysis of illumination-time response curves. Journal of Luminescence, 198, pp.146-154.
Relation: Journal of Luminescence volume 198 146 154 June 2018 0022-2313
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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