@article{article_419368, title={Simulation of an anomalous behavior of thermoluminescence glow peak of quartz from Nigeria}, journal={Journal of Nuclear Sciences}, volume={4}, pages={50–57}, year={2018}, DOI={10.1501/nuclear.2023.26}, url={https://izlik.org/JA75NZ85FY}, author={Olubi, O.e. and Oniya, E.O.}, keywords={simulation, anomalous glow peak, quartz, GCD analyses, thermoluminesence}, abstract={<p class="MsoNormal" style="margin-bottom:.0001pt;text-align:justify;line-height:200%;"> <span style="font-size:12pt;line-height:200%;font-family:’Times New Roman’, serif;"> <span style="font-size:12px;">Mechanism
of the experimentally observed anomalous shift of a thermoluminescence (TL)
glow peak that varied with irradiation dose is yet to be fully established. A
theory that the anomalous peak must have contained more than one first order
composite peak each with different TL dose characteristics has been one major
explanation proposed to explain this observation. This work was undertaken to
simulate the anomalous glow peak by using a modified version of a previously
proposed model and numerically solving sets of simultaneous differential
equations governing the stages of TL phenomena (excitation, relaxation and
heating). In the modified model, two additional electron trapping centers were
incorporated in order to simulate accurately this glow curve. Computerized </span> <span style="font-size:12px;"> curve deconvolution (CGCD) analyses </span> <span style="font-size:12px;"> was carried
out on the simulated </span> <span style="font-size:12px;">  </span> <span style="font-size:12px;">glow peak in
attempt to retrieve back the electron trapping cente </span> </span> <span style="font-size:12px;"> </span> <span style="font-size:12pt;line-height:200%;font-family:’Times New Roman’, serif;"> <span style="font-size:12px;">r energies and to identify
their respective peak positions. The outcome of this confirmed the peak to be
possibly composite in nature comprising three overlapping glow peaks at 288,
300 and 317 </span> <sup> <span style="font-size:12px;">o </span> </sup> <span style="font-size:12px;">C with respective energy gaps of 1.70, 1.73 and 1.75eV. It
is therefore further substantiated that this kind of temperature shift of peak
with dose resulting from composite glow peaks is possible. </span> </span> </p> <p> </p>}, number={2}