Spectral information from minerals relevant for luminescence dating

Krbetschek, Matthias; Götze, Jens; Dietrich, A.; Trautmann, T.

doi:10.1016/s1350-4487(97)00223-0

Cited by 324 publications

(187 citation statements)

References 181 publications

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“…However, this broad emission band can be attributed to Mn 2+ in Li sites [28], or in Al sites or in both [29]. According with Krbetschek et al [26] the CL emission between 700 and 780 nm could be associated with the presence of Fe 3+ cations. The maximum intensity and the peak area also decrease while the higher temperature region including a shoulder peaked at ca 500 o C, remains practically unaffected.…”

Section: Resultsmentioning

confidence: 93%

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Thermo- and cathodoluminescence properties of lepidolite

Rodrı́guez-Lazcano

Correcher

García-Guinea

2013

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Lepidolite, K(Li,Al) 3 (Si,Al) 4 O 10 (F,OH) 2 , and many of the related phyllosilicate mineral of the mica group have been well studied from the chemical and structural point of view; however, to the best of our knowledge, studies on their luminescence properties have been scarcely reported. This work focuses on the thermoluminescence (TL) and cathodoluminescence (CL) response of a natural lepidolite from Portugal previously characterized by means of environmental scanning electron microscope (ESEM) and Xray fluorescence (XRF) and atomic absorption spectroscopy (AAS) techniques. The complexity of the thermoluminescence glow curves of non-irradiated and 1Gy irradiated samples suggests a structure of a continuous trap distribution involving multiorder kinetics. UV-IR CL spectral emission shows seven peaks centered at 330, 397, 441, 489, 563, 700 and 769 nm. Such emission bands could be due to (i) structural defects, i. e.[AlO 4 ] or non-bridging oxygen hole centers, and (ii) the presence of point defects associated with Mn 2+ and Fe 3+ .

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Section: Resultsmentioning

confidence: 93%

“…Bands between 470 and 500 nm have been associated with [AlO 4 ] o centers [26]. The green band at 563 nm, which is common in strain-free aluminosilicates, can be attributed to Mn 2+ .…”

Section: Resultsmentioning

confidence: 99%

Thermo- and cathodoluminescence properties of lepidolite

Rodrı́guez-Lazcano

Correcher

García-Guinea

2013

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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“…Spectroscopic analyses of quartz luminescence emission are valuable in informing sample selection and analytical protocols, and should be utilised within OSL dating (Krbetschek et al, 1997;Townsend et al, 1993). These would enable identification of quartz likely to respond well in OSL analyses and may facilitate protocol development for more challenging samples.…”

Section: Discussionmentioning

confidence: 99%

“…The light emitted by quartz most commonly comprises bands in the UV-blue and red/IR (Krbetschek et al, 1997). Risø readers, the most widely used OSL instrumentation, stimulate the quartz with diodes at 470±20 nm (2.6 eV) and measure the response through Hoya U340 filters .…”

Section: Introductionmentioning

confidence: 99%

“…The controls over quartz OSL QE remain unclear but have been linked to geological provenance (Götze et al, 2004;Rink et al, 1993;Westaway, 2009), irradiation (Rink, 1994, transport and thermal histories (Pietsch et al, 2008;Preusser et al, 2006). However quartz with the same irradiation, source and depositional histories often exhibit highly variable emission intensities McFee and Tite, 1998).The light emitted by quartz most commonly comprises bands in the UV-blue and red/IR (Krbetschek et al, 1997). Risø readers, the most widely used OSL instrumentation, stimulate the quartz with diodes at 470±20 nm (2.6 eV) and measure the response through Hoya U340 filters .…”

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The problem of dating quartz 1: Spectroscopic ionoluminescence of dose dependence

King

Finch

Robinson

et al. 2011

Radiation Measurements

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A suite of quartz samples of different provenances, irradiation, thermal and depositional histories were analysed using spectroscopic ionoluminescence (IL) to investigate variations in emission spectra as a function of cumulative radiation dosing. Protons were selected for implantation to mimic the effect of natural radiation over geological timescales. All samples exhibited depletion in the UV-violet emission (3.2-3.4 eV) with increasing cumulative dose, whilst the red emission (1.8-1.9 eV) increased. A power-law relationship exists between the two emissions. It is inferred that the luminescence emission of quartz is indicative of its radiation history, and spectral analyses could be used to determine the utility of different quartz samples for optically stimulated luminescence dating (OSL) where the detection range is limited to 3.4-4.6 eV. KeywordsSpectroscopic ionoluminescence, implantation, protons, quartz, optically stimulated luminescence dating. AbbreviationsIonoluminescence (IL), Ultra-violet (UV), Optically Stimulated Luminescence (OSL) IntroductionOSL is used as a radiation dosimeter method within Quaternary geochronology, archaeology and retrospective accident dosimetry. Of the materials used for OSL studies, quartz is usually preferred (Aitken, 1998;Huntley et al., 1985). In addition, quartz has a range of industrial applications, which has rendered it the focus of intense research both into its physical and chemical properties, and its emission spectroscopy (see Götze, 2009; Krbetschek et al., 1997 for reviews). Numerous OSL dating applications to sediments of different ages (e.g. Ballarini et al., 2003;Pawley et al., 2008), provenances (e.g. Preusser et al., 2006) and depositional environments (e.g. Thrasher et al., 2009;Wallinga, 2002) have been made. However, despite the development of the single-aliquot regenerative dose protocol (Murray and Wintle, 2000), it is currently not possible to date all quartz using OSL. This is often due to quartz's highly variable OSL quantum efficiency (QE). The controls over quartz OSL QE remain unclear but have been linked to geological provenance (Götze et al., 2004;Rink et al., 1993;Westaway, 2009), irradiation (Rink, 1994, transport and thermal histories (Pietsch et al., 2008;Preusser et al., 2006). However quartz with the same irradiation, source and depositional histories often exhibit highly variable emission intensities McFee and Tite, 1998).The light emitted by quartz most commonly comprises bands in the UV-blue and red/IR (Krbetschek et al., 1997). Risø readers, the most widely used OSL instrumentation, stimulate the quartz with diodes at 470±20 nm (2.6 eV) and measure the response through Hoya U340 filters . The transparency of these filters lies between 3.4 and 4.6 eV and only a part of the UV-blue emission band is monitored. The remainder of the emission (below 3.4 eV and above 4.6 eV) is unmeasured in conventional OSL but may contain significant dosimetry or geological provenance information.Ionoluminescence (IL, also known as ion beam lumin...

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