Risø calibration quartz textendash A challenge for β-source calibration. An applied study with relevance for luminescence dating

Annette Kadereit, Sebastian Kreutzer

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

13 Dyfyniadau(SciVal)

Crynodeb

Risø calibration quartz (RCQ) is used worldwide in luminescence laboratories to calibrate β-sources. RCQ is advantageous because the inherent γ-dose is determined conveniently with a blue light stimulated luminescence (BLSL) single aliquot regeneration (SAR) protocol and dose equivalents (DEs) are highly reproducible with standard errors of the mean of usually <2%. We report on a series of tests on the recoverability of known β-doses from RCQ and on DE-determination of γ-dosed RCQ with varying SAR-measurement parameters. Evaluated alone, these raise doubt whether the precise calibration results are systematically correct. However, it is likely that cutheat and preheat adjustment of ‘quick calibration’ as applied by staff members of the Radiation Research Division of the Technical University of Denmark when installing a new luminescence reader in a customer’s laboratory are appropriate to minimize systematic errors. This finding is suggested by comparative calibration of a β-source with RCQ and another γ-irradiated quartz
Iaith wreiddiolSaesneg
Tudalennau (o-i)2238-2250
Nifer y tudalennau13
CyfnodolynMeasurement
Cyfrol46
Rhif cyhoeddi7
Dyddiad ar-lein cynnar21 Maw 2013
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 01 Awst 2013
Cyhoeddwyd yn allanolIe

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