Further investigations on 'non-fading' in K-Feldspar

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    Abstract

    We give a theoretical overview of non-fading infrared stimulated luminescence (IRSL) signals in feldspars, followed by intercomparison of potential methods on some sediment extracts. We observe that a more stringent thermal wash on its own is not effective in obtaining a more stable signal, suggesting that the higher the stimulation temperature in post IR-IRSL methods, the greater the ability to access distant electron hole pairs. We further find that the delayed off-time signal in time-resolved IRSL has immense potential for sampling non-fading signal and should be explored further; this signal also appears to be well reset in nature and avoids unwanted thermal transfer effects in comparison to the post IR-IRSL signal measured at 290 degrees C. (C) 2014 Elsevier Ltd and INQUA. All rights reserved.
    Original languageEnglish
    JournalQuaternary International
    Volume362
    Pages (from-to)3-7
    Number of pages5
    ISSN1040-6182
    DOIs
    Publication statusPublished - 2015
    Event9th New World Luminescence Dating Workshop - Utah State University, Logan, Utah, United States
    Duration: 15 Aug 201318 Aug 2013

    Workshop

    Workshop9th New World Luminescence Dating Workshop
    LocationUtah State University
    CountryUnited States
    CityLogan, Utah
    Period15/08/201318/08/2013

    Keywords

    • GEOGRAPHY,
    • GEOSCIENCES,
    • ANOMALOUS FADING CORRECTION
    • NORTHERN RUSSIA
    • EEMIAN SITE
    • LUMINESCENCE
    • SIGNALS
    • SAMPLES
    • ACCURACY
    • PROTOCOL
    • Infra-red stimulated luminescence (IRSL)
    • Time resolved IRSL (TR-IRSL)
    • Pulsed IRSL
    • Post IR - IRSL
    • Retrospective dosimetry
    • Anomalous fading

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