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Excited state luminescence signals from a random distribution of defects : A new Monte Carlo simulation approach for feldspar

Titelangaben

Pagonis, Vasilis ; Friedrich, Johannes ; Discher, Michael ; Müller-Kirschbaum, Anna ; Schlosser, Veronika ; Kreutzer, Sebastian ; Chen, Reuven ; Schmidt, Christoph:
Excited state luminescence signals from a random distribution of defects : A new Monte Carlo simulation approach for feldspar.
In: Journal of Luminescence. Bd. 207 (2019) . - S. 266-272.
ISSN 0022-2313
DOI: https://doi.org/10.1016/j.jlumin.2018.11.024

Angaben zu Projekten

Projekttitel:
Offizieller Projekttitel
Projekt-ID
ULTIMO: Unifying LumInescence Models of quartz and feldspar – towards a comprehensive and reproducible modelling platform
57387041

Abstract

This paper presents Monte Carlo simulations of tunneling recombination in random distributions of defects. Simulations are carried out for four common luminescence phenomena in solids exhibiting tunneling recombination, namely continuous wave infrared stimulated luminescence (CW-IRSL), thermoluminescence (TL), isothermal thermoluminescence (iso-TL) and linearly modulated infrared stimulated luminescence (LM-IRSL). Previous modeling work has shown that these phenomena can be described by the same partial differential equation, which must be integrated numerically over two variables, the elapsed time and the donor-acceptor distance. We here present a simple and fast Monte Carlo approach which can be applied to these four phenomena, and which reproduces the solution of the partial differential equation, without the need for numerical integrations. We show that the method is also applicable to cases of truncated distributions of nearest neighbor distances, which characterize samples that underwent multiple optical or thermal pretreatments. The accuracy and precision of the Monte Carlo method are tested by comparing with experimental data from several feldspar samples.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Keywords: Monte Carlo model; Feldspar model; Excited state luminescence in feldspars
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Lehrstuhl Geomorphologie
Profilfelder > Advanced Fields > Ökologie und Umweltwissenschaften
Profilfelder > Advanced Fields > Nichtlineare Dynamik
Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Profilfelder
Profilfelder > Advanced Fields
Forschungseinrichtungen
Forschungseinrichtungen > Forschungszentren
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften, Geologie
Eingestellt am: 28 Nov 2018 07:39
Letzte Änderung: 06 Jul 2022 12:33
URI: https://eref.uni-bayreuth.de/id/eprint/46484