Numerical solutions to the rate equations governing the simultaneous release of electrons and holes during thermoluminescence and isothermal decay

McKeever, S.W.S.; Rhodes, Joanne F.; Mathur, V. K.; Chen, R.; Brown, M. D.; Bull, R.K.

doi:10.1103/physrevb.32.3835

Cited by 39 publications

(8 citation statements)

References 22 publications

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“…To obtain an idea of sensitivity, it is more appropriate to compare the response with that of, for example, a commercial detector phosphor. For characterizing TSL properties, the glow curve, variable heating rate technique, (17,18) preheating (partial cleaning) technique, (19) isothermal decay curve, (20) as well as the photobleaching effect can be performed. The TSL glow curve measurement, preheating technique, isothermal decay curve, and the photobleaching effect were demonstrated previously.…”

Section: Methodsmentioning

confidence: 99%

TSL/OSL/RPL Automated and Integrated Measurement System (TORAIMS)

Okada¹,

Hirasawa²,

Yanagida³

et al. 2021

Sensors and Materials

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Thermally stimulated luminescence (TSL), optically stimulated luminescence (OSL), and radio-photoluminescence (RPL) are radiation-induced luminescence phenomena, and they are widely used for radiation dosimetry today. Despite their successful applications, the R&D of conventional and new phosphor materials is still actively performed in a wide range of research fields from basic science to application. Although these phenomena are considered to be different, they share common physical processes such as the generation, trapping, and transfer of electronic charges. In order to have a deeper look into these phenomena, it is important to comprehensively characterize those of a single material. For this, we have constructed a prototype TSL/OSL/RPL automated and integrated measurement system (TORAIMS), and then the system performance has been studied. The system offers automated and integrated measurement of several different TSL, OSL, and RPL properties, and it is also designed to cover many different phosphor materials having a wide variety of spectroscopic properties.

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Section: Methodsmentioning

confidence: 99%

TSL/OSL/RPL Automated and Integrated Measurement System (TORAIMS)

Okada¹,

Hirasawa²,

Yanagida³

et al. 2021

Sensors and Materials

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“…Luminescence dosimetry relies on the stimulated emission of light from an insulator or a semiconductor after the absorption of energy from ionising radiation 67 . Ionising radiation transfers energy to the electrons of the solid, moving them to a metastable state.…”

Section: Optically/thermally Stimulated Luminescencementioning

confidence: 99%

Uncertainty on Radiation Doses Estimated by Biological and Retrospective Physical Methods

Ainsbury

Samaga

Monaca

et al. 2017

Radiation Protection Dosimetry

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Biological and physical retrospective dosimetry are recognised as key techniques to provide individual estimates of dose following unplanned exposures to ionising radiation. Whilst there has been a relatively large amount of recent development in the biological and physical procedures, development of statistical analysis techniques has failed to keep pace. The aim of this paper is to review the current state of the art in uncertainty analysis techniques across the 'EURADOS Working Group 10-Retrospective dosimetry' members, to give concrete examples of implementation of the techniques recommended in the international standards, and to further promote the use of Monte Carlo techniques to support characterisation of uncertainties. It is concluded that sufficient techniques are available and in use by most laboratories for acute, whole body exposures to highly penetrating radiation, but further work will be required to ensure that statistical analysis is always wholly sufficient for the more complex exposure scenarios.

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“…Kinetic parameters offer valuable information about mechanism which is responsible for TL emission in the material. The trapping-emitting centres accountable for the TL emission were quantitatively described by the various kinetic parameters such as Activation energy (E), frequency factor (S) Various experimental techniques such as Initial -rise (IR) method, Chen's peak shape method, Isothermal decay method, various heating rate method, etc., have been established to determine these parameters from TL glow curves (39)(40)(41)(42)(43).In the present study, we have chosen Chen's peak shape and initial rise method for determining the trap parameters of synthesized phosphors. These methods are applicable to isolated peaks.…”

Section: Calculations Of Trapping Parametersmentioning

confidence: 99%