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The problem of dating quartz 2: Synchrotron generated X-ray excited optical luminescence (XEOL) from quartz

DOI: 10.1016/j.radmeas.2011.08.014 DOI Help

Authors: G. E. King (Department of Earth Sciences, Uni St Andrews) , A. A. Finch (Department of Earth Sciences, University of St Andrews) , R. A. J. Taylor (Diamond Light Source) , J. F. W. Mosselmans (Diamond Light Source)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Radiation Measurements , VOL 46 (10) , PAGES 1082 - 1089

State: Published (Approved)
Published: October 2011
Diamond Proposal Number(s): 1215

Abstract: The luminescence emission of quartz is used in optically stimulated luminescence dating (OSL), however the precise origins of the emission are unclear. A suite of quartz samples were analysed using X-ray excited optical luminescence (XEOL). Radiation dose effects were observed whereby the UV emissions (3.8 and 3.4 eV) were depleted to the benefit of the red emission (1.9–2.0 eV). Samples were excited at ?7 keV. Understanding why some quartz emit light more brightly than others will increase the efficiency and precision of OSL analyses.

Journal Keywords: X-ray excited optical luminescence; Quartz; Optically stimulated luminescence dating

Subject Areas: Environment, Materials, Engineering

Instruments: I18-Microfocus Spectroscopy