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dc.contributor.authorRoberts, H. M.
dc.contributor.authorDuller, G. A. T.
dc.contributor.authorGunn, M.
dc.contributor.authorCousins, C.R.
dc.contributor.authorCross, R. E.
dc.contributor.authorLangstaff, D.
dc.identifier.citationRoberts , H M , Duller , G A T , Gunn , M , Cousins , C R , Cross , R E & Langstaff , D 2018 , ' Strategies for equivalent dose determination without heating, suitable for portable luminescence readers ' , Radiation Measurements , vol. In press .
dc.identifier.otherPURE: 252962685
dc.identifier.otherPURE UUID: 5f956279-6b6e-451e-948d-c0fc5f7b4b9c
dc.identifier.otherRIS: urn:176AAB8B1C7A1BC868CB22F4E904EBB6
dc.identifier.otherScopus: 85047227913
dc.identifier.otherORCID: /0000-0002-3954-8079/work/60196576
dc.identifier.otherWOS: 000459527400029
dc.descriptionThis work was supported by the UK Space Agency CREST3 program under grant ST/P001998/1. Research in Next Generation Luminescence methods in Aberystwyth is supported by NERC grant CC003, and by HEFCW infrastructure funding for SPARCL.en
dc.description.abstractIn recent years a number of portable instruments have been built for measuring the optically stimulated luminescence (OSL) signal from naturally occurring minerals. Some of these instruments have incorporated ionising radiation sources, giving the possibility of determining an equivalent dose (De), but little use has been made of these. One challenge has been that heating samples in this type of equipment is a major engineering challenge, yet methods for De determination use thermal pretreatments to remove charge from unstable traps, making signals arising from irradiation in nature and the laboratory comparable. This paper explores three strategies for obtaining accurate estimates of the De of samples in situations where thermal treatments are not possible: (1) deriving a correction factor based on comparing De values obtained using protocols with and without heating; (2) removing the contribution from the 110 °C TL peak and other unstable defects by component fitting the unheated OSL signal; and (3) adding a small beta dose to the sample prior to measurement of the natural luminescence signal so that the 110 °C TL peak is filled, making this measurement comparable with regeneration measurements where this peak is also populated. All three methods are promising when applied to quartz that has been physically separated from samples using standard laboratory procedures. The next step in this work will be to explore whether such methods can be applied to mixed mineral assemblages as would be encountered in the field.
dc.relation.ispartofRadiation Measurementsen
dc.rights© 2018 Elsevier Ltd. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectDe determinationen
dc.subject110C TL peaken
dc.subjectGE Environmental Sciencesen
dc.subjectQC Physicsen
dc.titleStrategies for equivalent dose determination without heating, suitable for portable luminescence readersen
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.institutionUniversity of St Andrews. School of Earth & Environmental Sciencesen
dc.contributor.institutionUniversity of St Andrews. St Andrews Centre for Exoplanet Scienceen
dc.description.statusPeer revieweden

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