A simple transformation for converting CW-OSL curves to LM-OSL curves

Bulur, E.

doi:10.1016/s1350-4487(99)00247-4

Cited by 82 publications

(41 citation statements)

References 10 publications

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“…4. The analysis of the pseudo LM-OSL curves (Bulur, 2000) confirmed the presence of a dominant fast decay and a medium decay component in aliquots of all three samples, comparable to those published previously for quartz (Durcan and Duller, 2011;Pawley et al, 2010;Singarayer et al, 2003;Jain et al, 2003). The proportion of the medium decay component varied and appeared to be relatively much weaker in aliquots of sample 316-3.…”

Section: Osl Characteristics -Small Aliquotssupporting

confidence: 87%

Luminescence dating of sediments from a Palaeolithic site associated with a solution feature on the North Downs of Kent, UK

Bailiff

Lewis

Drinkall

et al. 2013

Quaternary Geochronology

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White, M. (2013) 'Luminescence dating of sediments from a Palaeolithic site associated with a solution feature on the North Downs of Kent, UK.', Quaternary geochronology., 18 . pp. 135-148. Further information on publisher's website:http://dx.doi.org/10.1016/j.quageo.2013.04.001Publisher's copyright statement: NOTICE: this is the author's version of a work that has been accepted for publication in Quaternary geochronology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be re ected in this document. Changes may have been made to this work since it was submitted for publication. A de nitive version has been published in Quaternary geochronology, 18, 2013Quaternary geochronology, 18, , 10.1016Quaternary geochronology, 18, /j.quageo.2013 Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

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Section: Osl Characteristics -Small Aliquotssupporting

confidence: 87%

Luminescence dating of sediments from a Palaeolithic site associated with a solution feature on the North Downs of Kent, UK

Bailiff

Lewis

Drinkall

et al. 2013

Quaternary Geochronology

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“…Our transformation ͓Eq. ͑15͔͒ differs from Bulur's, 14 who proposed that Eq. ͑14͒ can be obtained by a conversion of the I CW signal through a transformation of the time t into u = ͱ 2tP with P͑s͒ as the stimulation period.…”

Section: Pseudo-lm-oslmentioning

confidence: 76%

“…Later on, Bulur 14 showed that this LM-OSL signal can also be obtained from the CW-OSL signal by a simple mathematical transformation. Such a signal not obtained by the modulation of the stimulation intensity but through the transformation of the CW-OSL signal is called a pseudo-OSL signal.…”

mentioning

confidence: 99%

Optically stimulated luminescence signals under various stimulation modes assuming first-order kinetics

Bos

Wallinga

2009

Phys. Rev. B

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We present mathematical descriptions of optically stimulated luminescence ͑OSL͒ signals under linearly, hyperbolically, exponentially, and reciprocally increasing stimulation intensity for a one-trap one-recombination-center model assuming charge transfer governed by first-order kinetics. Depending on the stimulation mode, the OSL signal can be monotonically increasing, monotonically decreasing, show a peak shape, or be constant. The shape of the OSL signal is controlled by a stimulation-rate parameter ͑governed by the stimulation mode͒ and a decay-rate parameter that is proportional to the photoionization cross section. We demonstrate that the luminescence signal as a function of time under exponentially increasing-optical stimulation ͑EM-OSL͒ shows the same evolution in time as the luminescence signal under hyperbolically increasingthermal stimulation ͑HM-TL͒. This similarity allows a new interpretation of the I · t versus In t plot, where I is the optically stimulated luminescence intensity and t is the time. For a phosphor with several optically active traps, the OSL signal will contain several components. We show that the mathematical descriptions of the OSL signals under all stimulation modes can be related to the description of the OSL signal derived with continuous-wave ͑CW͒ stimulation. These so-called pseudo-OSL signals are helpful in a visualization of the various components in the OSL signal, where different pseudo-OSL transformations can be used to amplify different aspects. We demonstrate that the stimulation mode or pseudo-OSL transformation used has no effect on the overlap of the different OSL components. This implies that for the separation of multiple OSL components there is, in principle, no preference for a specific stimulation mode or pseudo-OSL transformation. Finally, we present a transformation related to hyperbolically modulated OSL which does facilitate separation of OSL components and may be of use for determining component specific photoionization cross sections or trapped-charge concentrations.

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“…where n 0 is the initial trap concentration; B is a constant describing the decay of luminescence curve and is proportional to the photoionization cross section and the intensity of light I 0 (B = I 0 ) Bulur [25]. A new independent variable, u, is described to transform the CW-OSL curve to LM-OSL.…”

Section: Linear Modulation Technique (Lm-osl)mentioning

confidence: 99%

Dose-Dependence of Trap Parameters of OSL Decay from Al<sub>2</sub>O<sub>3</sub>:C

Tanir

Bölükdemir²,

Ghomi³

2012

WJNST

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Optically Stimulated Luminescence (OSL) trap parameters can only be reliably determined through the detailed analysis of OSL decay curves. In this study the kinetic parameters of a blue-light stimulated luminescence (BLS) decay curve from Al 2 O 3 :C sample irradiated at 0.1, 0.15, 0.2, 0.4 and 0.6 Gy beta doses were obtained using the same basic methods with some modifications applied and also by using our suggestion: Active-OSL Approximation (AOSL). The results were compared with those of other studies on the trap parameters of Al 2 O 3 :C material.

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A simple transformation for converting CW-OSL curves to LM-OSL curves

Cited by 82 publications

References 10 publications

Luminescence dating of sediments from a Palaeolithic site associated with a solution feature on the North Downs of Kent, UK

Luminescence dating of sediments from a Palaeolithic site associated with a solution feature on the North Downs of Kent, UK

Optically stimulated luminescence signals under various stimulation modes assuming first-order kinetics

Dose-Dependence of Trap Parameters of OSL Decay from Al<sub>2</sub>O<sub>3</sub>:C

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A simple transformation for converting CW-OSL curves to LM-OSL curves

Cited by 82 publications

References 10 publications

Luminescence dating of sediments from a Palaeolithic site associated with a solution feature on the North Downs of Kent, UK

Luminescence dating of sediments from a Palaeolithic site associated with a solution feature on the North Downs of Kent, UK

Optically stimulated luminescence signals under various stimulation modes assuming first-order kinetics

Dose-Dependence of Trap Parameters of OSL Decay from Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;:C

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Dose-Dependence of Trap Parameters of OSL Decay from Al<sub>2</sub>O<sub>3</sub>:C