Show simple item record Jakob en_US Adrie J. J. en_US Geoffrey Alastair Thomas en_US 2010-12-21T15:10:37Z 2010-12-21T15:10:37Z 2008-02-01 en_US
dc.identifier en_US
dc.identifier.citation Wallinga , J , Bos , A J J & Duller , G A T 2008 , ' On the separation of quartz OSL signal components using different stimulation modes ' Radiation Measurements , vol 43 , no. 2-6 , pp. 742-747 . , 10.1016/j.radmeas.2008.01.013 en_US
dc.identifier.other PURE: 155957 en_US
dc.identifier.other dspace: 2160/6037 en_US
dc.description.abstract We investigate both theoretically and experimentally the effect of stimulation mode on the separation of quartz optically stimulated luminescence (OSL) components. We find that, when assuming first-order kinetics with the detrapping probability proportional to stimulation intensity, the OSL signal is a function of the cumulative stimulation energy and not affected by the stimulation mode. This is confirmed by close correspondence between continuous wave (CW), linearly modulated (LM) and hyperbolically modulated (HM) OSL data for some of the samples studied. For other samples the data obtained using LM stimulation differ from that obtained using the other stimulation modes. This may be due to a contribution to the OSL signal from feldspars, or it may indicate that the behaviour of these samples is not adequately described by first-order kinetics. We suggest that CW stimulation is the method of choice for dating purposes as it allows the fastest readout with the greatest signal-to-noise ratio, and because it has a constant background. HM stimulation provides a good alternative when higher resolution is needed for the initial part of the shine-down curve. en_US
dc.format.extent 6 en_US
dc.relation.ispartof Radiation Measurements en_US
dc.subject LM-OSL en_US
dc.subject first-order kinetics en_US
dc.subject OSL components en_US
dc.subject RELEVANCE en_US
dc.subject quartz en_US
dc.subject stimulation mode en_US
dc.title On the separation of quartz OSL signal components using different stimulation modes en_US
dc.contributor.pbl Institute of Geography & Earth Sciences en_US
dc.contributor.pbl River Basin Dynamics and Hydrology en_US

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