Calibration quartz: An update on dose calculations for luminescence dating. (September 2022)

• Record Type: Journal Article
• Authors: Autzen, M.; Andersen, C.E.; Bailey, M.; Murray, A.S.
• Is Part Of: Radiation measurements. Volume 157(2022)
• Publication Date: 2022-09
• Subjects: Nuclear emulsions -- Periodicals; Particle tracks (Nuclear physics) -- Periodicals; Thermoluminescence -- Periodicals; Cosmic rays -- Periodicals; Radiation -- Measurement -- Periodicals; Radiometry -- Periodicals; Radiation Monitoring -- Periodicals; Émulsions nucléaires -- Périodiques; Particules (Physique nucléaire) -- Traces -- Périodiques; Thermoluminescence -- Périodiques; Rayonnement cosmique -- Périodiques; Radiométrie -- Périodiques; 539.77
• DOI: 10.1016/j.radmeas.2022.106828
• Languages: English
• ISSNs: 1350-4487

Abstract

Abstract: Previous calculations of the γ dose given to Risø Calibration Quartz (RCQ) were performed using mass absorption and mass attenuation coefficients. In this paper, we update the γ dose given to RCQ using Geant4 simulations and provide a comparison with three other γ sources in Denmark. We also show experimental evidence that the luminescence response to a 137 Cs γ irradiation is 4% higher than that resulting from a 60 Co γ irradiation for the same dose, confirming the suggestions of Autzen et al. (2021) based on simulations. Highlights: The dose to previous batches of RCQ have underestimated by up to 8.5%. A new calculation based on Monte Carlo simulations forms the basis for future batches. We observe a discrepancy between the luminescence from 137 Cs and 60 Co.