Optically stimulated luminescence dating of young quartz using the fast component

Alastair C. Cunningham*, Jakob Wallinga

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

21 Citations (Scopus)

Abstract

We have attempted to isolate the fast component of the quartz optically stimulated luminescence (OSL) signal using a curve-fitting procedure. By pre-determining the decay constants, the procedure is simple enough to be scripted, allowing a large number of aliquots to be processed. A Monte Carlo error routine is used, in which simulated decay curves are fitted with several exponentials, which vary in their decay rates according to the measured distributions of fast and medium component decay rates. The derived error term is closely related to the intensity of the fast component signal, but is also influenced by the degree of similarity between the equivalent doses of the fast and medium OSL components. There are potential advantages in using this procedure to date both well-bleached and partially bleached quartz, of any depositional age.

Original languageEnglish
Pages (from-to)423-428
Number of pages6
JournalRadiation Measurements
Volume44
Issue number5-6
DOIs
Publication statusPublished - May 2009
Externally publishedYes

Keywords

  • Curve fitting
  • Deconvolution
  • Fast component
  • Luminescence dating
  • OSL dating

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