Fading characteristics of martian analogue materials and the applicability of a correction procedure

P. Morthekai, Mayank Jain, A.S. Murray, Kristina Jørkov Thomsen, Lars Bøtter-Jensen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The anomalous fading of trapped charge in martian analogue materials such as basalt and andesite rock samples is measured. Optically stimulated luminescence (OSL) signals show rapid fading (of between 4% and 27% per decade). Fading rates obtained using high temperature thermoluminescence signals are smaller. The importance of knowing whether a standard fading correction method is applicable to samples of unknown age is illustrated by application to an 'infinitely old' known-age basalt, for which both the uncorrected and fading-corrected natural signals lie within the approximately linear region of the growth curve. (C) 2008 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    JournalRadiation Measurements
    Volume43
    Issue number2-6
    Pages (from-to)672-678
    ISSN1350-4487
    DOIs
    Publication statusPublished - 2008
    EventSolid State Dosimetry Conference - Delft, Netherlands
    Duration: 8 Jul 200713 Jul 2007
    Conference number: 15

    Conference

    ConferenceSolid State Dosimetry Conference
    Number15
    Country/TerritoryNetherlands
    CityDelft
    Period08/07/200713/07/2007

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