IRSL and post-IR IRSL residual doses recorded in modern dust samples from the Chinese Loess Plateau

Jan-Pieter Buylaert, Christine Thiel, Andrew S. Murray, Dimitri A.G. Vandenberghe, Shuangwen Yi, Huayu Lu

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Using a set of modern/young (0 to about 200 years old) dust samples collected from the Chinese Loess Plateau the bleachability of IRSL measured at 50°C (IR50) and post-IR50 elevated temperature IRSL (measured at 225°C and at 290°C) is investigated by measuring the apparent (residual) doses recorded by these signals. Doses recorded by quartz OSL are used as a reference. Allowing for differences in dose rates it seems that both IRSL and post-IR IRSL signals yield residual doses that are significantly larger than the doses measured in quartz. These residual doses can be largely explained by thermal transfer caused by preheating. Nevertheless, we advise against the use of a low temperature preheat (
    Original languageEnglish
    JournalGeochronometria
    Volume38
    Issue number4
    Pages (from-to)432-440
    ISSN1733-8387
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Radiation physics

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