The issue of laboratory bleaching in the infrared-radiofluorescence dating method. (October 2015)

• Record Type: Journal Article
• Authors: Frouin, M.; Huot, S.; Mercier, N.; Lahaye, C.; Lamothe, M.
• Is Part Of: Radiation measurements. Volume 81(2015:Oct.)
• Page Start: 212
• Page End: 217
• Publication Date: 2015-10
• Subjects: Infrared radiofluorescence -- K-feldspar -- Bleaching parameters; 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.2014.12.012
• Languages: English
• ISSNs: 1350-4487

Abstract

Abstract: Measuring the infrared radiofluorescence (IR-RF) signal is methodologically simpler than measuring the IRSL or TL signals. However, unlike classical luminescence measurements, the IR-RF signal is totally resetting when its highest value is reached. Previous studies (Buylaert et al., 2012; Trautmann et al., 2000) reported that the proper bleaching level of an IR-RF signal is difficult to define and seems to be dependent 1) on the wavelength used for bleaching and 2) on exposure duration. The IR-RF signals from K-feldspar samples have been measured with various bleaching wavelengths and exposure time using a Lexsyg research luminescence unit. In this study, we propose suitable bleaching parameters adapted to IR-RF measurements. Highlights: Describes the behavior of K-feldspars during bleaching experiments. The bleaching level of an IR-RF signal is dependent on the wavelength and on exposure duration. Proposes suitable bleaching parameters adapted to IR-RF measurements.