The issue of laboratory bleaching in the infrared-radiofluorescence dating method

M. Frouin, S. Huot, N. Mercier, C. Lahaye, M. Lamothe

Research output: Contribution to journalArticlepeer-review


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 IRRF measurements.

Original languageEnglish (US)
Pages (from-to)212-217
Number of pages6
JournalRadiation Measurements
StatePublished - Oct 1 2015
Externally publishedYes


  • Bleaching parameters
  • Infrared radiofluorescence
  • K-feldspar

ASJC Scopus subject areas

  • Radiation
  • Instrumentation


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