Show simple item record

dc.contributor.authorDuval, M
dc.contributor.authorGuilarte Moreno, V
dc.contributor.authorGruen, R
dc.date.accessioned2017-05-29T12:34:23Z
dc.date.available2017-05-29T12:34:23Z
dc.date.issued2013
dc.identifier.issn0144-8420
dc.identifier.doi10.1093/rpd/nct167
dc.identifier.urihttp://hdl.handle.net/10072/337419
dc.description.abstractThis work deals with the specific studies of three main sources of uncertainty in electron spin resonance (ESR) dosimetry/dating of fossil tooth enamel: (1) the precision of the ESR measurements, (2) the long-term signal fading the selection of the fitting function. They show a different influence on the equivalent dose (DE) estimates. Repeated ESR measurements were performed on 17 different samples: results show a mean coefficient of variation of the ESR intensities of 1.20±0.23 %, inducing a mean relative variability of 3.05±2.29 % in the DE values. ESR signal fading over 5 y was also observed: its magnitude seems to be quite sample dependant but is nevertheless especially important for the most irradiated aliquots. This fading has an apparent random effect on the DE estimates. Finally, the authors provide new insights and recommendations about the fitting of ESR dose–response curves of fossil enamel with a double saturating exponential (DSE) function. The potential of a new variation of the DSE was also explored. Results of this study also show that the choice of the fitting function is of major importance, maybe more than the other sources previously mentioned, in order to get accurate final DE values.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherOxford University Press
dc.relation.ispartofpagefromnct167-463
dc.relation.ispartofpagetonct167-476
dc.relation.ispartofissue4
dc.relation.ispartofjournalRadiation Protection Dosimetry
dc.relation.ispartofvolume157
dc.subject.fieldofresearchOther physical sciences
dc.subject.fieldofresearchcode5199
dc.titleESR dosimetry of fossil enamel: Some comments about measurement precision, long-term signal fading and dose-response curve fitting
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorGrun, Rainer
gro.griffith.authorDuval, Mathieu


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record