Always remain suspicious

• Verfasst von: Kreutzer, Sebastian [VerfasserIn]
• Verfasst von: Murari, Madhav Krishna [VerfasserIn]
• Verfasst von: Frouin, Marine [VerfasserIn]
• Verfasst von: Fuchs, Markus [VerfasserIn]
• Verfasst von: Mercier, Norbert [VerfasserIn]
• Titel: Always remain suspicious
• Titelzusatz: a case study on tracking down a technical artefact while measuring IR-RF
• Verf.angabe: Sebastian Kreutzer, Madhav Krishna Murari, Marine Frouin Markus Fuchs, Norbert Mercier
• E-Jahr: 2017
• Jahr: 2017-06-15
• Umfang: 11 S.
• Fussnoten: Gesehen am 26.03.2025
• Titel Quelle: Enthalten in: Ancient TL
• Ort Quelle: Aberystwyth : [Verlag nicht ermittelbar], 1990
• Jahr Quelle: 2017
• Band/Heft Quelle: 35(2017), 1, Seite 20-30
• ISSN Quelle: 0735-1348
• DOI: doi:10.26034/la.atl.2017.510
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 192058904X

Abstract

Identifying systematic errors that are introduced by the measurement equipment is a necessary prerequisite for reproducible measurements and reliable results. However, technical artefacts often remain unpublished. Here we report on a sudden change of luminescence intensity observed while measuring IR-RF signals from K-feldspar extracts. The measurements were carried out on a lexsyg research reader. A lateral movement of the sample carrier up to 0.5mm relative to the photomultiplier tube and the irradiation source, causes a change in the sample geometry. This movement results in inter-aliquot scatter during the measurement of IR-RF. Two solutions are discussed to remove this effect: (I) data post-processing and (II) design change by the manufacturer. Our study so far is limited to IR-RF measurements on a single luminescence reader and suggests due caution in the identification of such systematic errors.