A theoretical model for a new dating protocol for quartz based on thermally transferred OSL (TT-OSL)

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dc.contributor.author Chen, Reuven
dc.contributor.author Wang, X. L.
dc.contributor.author Pagonis, Vasilis
dc.contributor.author Wintle, Ann G.
dc.date.accessioned 2011-01-11T11:43:54Z
dc.date.available 2011-01-11T11:43:54Z
dc.date.issued 2008-02
dc.identifier.citation Chen , R , Wang , X L , Pagonis , V & Wintle , A G 2008 , ' A theoretical model for a new dating protocol for quartz based on thermally transferred OSL (TT-OSL) ' Radiation Measurements , pp. 2-6 . en
dc.identifier.issn 1350-4487
dc.identifier.other PURE: 156958
dc.identifier.other dspace: 2160/6081
dc.identifier.uri http://hdl.handle.net/2160/6081
dc.description Pagonis, V., Wintle, A. G., Chen, R., Wang, X. L. (2008). A theoretical model for a new dating protocol for quartz based on thermally transferred OSL (TT-OSL). Radiation Measurements, 43(2-6), 704-708. en
dc.description.abstract Recently a new dating procedure has been suggested, which is based on the thermally transferred optically stimulated luminescence (TT-OSL) signal that is measured after irradiated quartz is optically bleached and then preheated. Experimentally the TT-OSL signal was measured after a high temperature preheat ( for 10 s) following an optical bleach at for 270 s to deplete the fast and medium OSL components. The TT-OSL signal was measured for 90 s at in order to avoid the effect of re-trapping of electrons in the trap of quartz. The luminescence sensitivity changes were monitored by the OSL response to a test dose. In this paper, we use a modified version of a comprehensive model to simulate the complete experimental sequence of the new protocol, and to fit the experimental dose–response graphs of the OSL, TT-OSL and basic-TT-OSL signals for doses up to 4000 Gy. Two possible mechanisms for the production of the TT-OSL signals in this quartz are discussed, namely the double transfer mechanism suggested for the recuperation effect, and a single transfer mechanism in which the TT-OSL signal is due to the thermal transfer of charge from a “source trap” into the fast OSL trap of quartz. The results of the simulation indicate that the latter mechanism is more likely to be responsible for the observed TT-OSL dose growth in fine-grained quartz extracted from Chinese loess. en
dc.format.extent 5 en
dc.language.iso eng
dc.relation.ispartof Radiation Measurements en
dc.title A theoretical model for a new dating protocol for quartz based on thermally transferred OSL (TT-OSL) en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1016/j.radmeas.2008.01.025
dc.contributor.institution Aberystwyth University en
dc.contributor.institution Centre for Glaciology en
dc.description.status Peer reviewed en


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