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Article: Investigations of the dose-dependent anomalous fading rate of feldspar from sediments

TitleInvestigations of the dose-dependent anomalous fading rate of feldspar from sediments
Authors
Issue Date2008
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jpd
Citation
Journal Of Physics D: Applied Physics, 2008, v. 41 n. 22 How to Cite?
AbstractAnomalous fading characteristics of feldspar from sediments are investigated using both modelling and experimental data. Based on the theory of tunnelling from electron traps to randomly distributed recombination centres proposed by Huntley (2006 J. Phys.: Condens. Matter. 18 1359-65), the following aspects are modelled: the tunnelling-related decay of the luminescence signal from laboratory-irradiated and naturally irradiated samples, the effects of anomalous fading on the shape of dose response curve (DRC) under natural irradiation, the probability distribution of trap-to-centre distance for laboratory-irradiated and naturally irradiated samples and the dependence of anomalous fading on natural doses and their relationship to the density of recombination centres. The modelling results were tested by measuring the anomalous fading rate and DRCs for K-feldspar from laboratory-irradiated samples and naturally irradiated samples with different ages. The experimental data show that the fading rates for both laboratory-irradiated samples and naturally irradiated samples are strongly dependent on the size of radiation dose received. © 2008 IOP Publishing Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/58659
ISSN
2015 Impact Factor: 2.772
2015 SCImago Journal Rankings: 0.682
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Ben_HK
dc.contributor.authorLi, SHen_HK
dc.date.accessioned2010-05-31T03:34:33Z-
dc.date.available2010-05-31T03:34:33Z-
dc.date.issued2008en_HK
dc.identifier.citationJournal Of Physics D: Applied Physics, 2008, v. 41 n. 22en_HK
dc.identifier.issn0022-3727en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58659-
dc.description.abstractAnomalous fading characteristics of feldspar from sediments are investigated using both modelling and experimental data. Based on the theory of tunnelling from electron traps to randomly distributed recombination centres proposed by Huntley (2006 J. Phys.: Condens. Matter. 18 1359-65), the following aspects are modelled: the tunnelling-related decay of the luminescence signal from laboratory-irradiated and naturally irradiated samples, the effects of anomalous fading on the shape of dose response curve (DRC) under natural irradiation, the probability distribution of trap-to-centre distance for laboratory-irradiated and naturally irradiated samples and the dependence of anomalous fading on natural doses and their relationship to the density of recombination centres. The modelling results were tested by measuring the anomalous fading rate and DRCs for K-feldspar from laboratory-irradiated samples and naturally irradiated samples with different ages. The experimental data show that the fading rates for both laboratory-irradiated samples and naturally irradiated samples are strongly dependent on the size of radiation dose received. © 2008 IOP Publishing Ltd.en_HK
dc.languageengen_HK
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/Journals/jpden_HK
dc.relation.ispartofJournal of Physics D: Applied Physicsen_HK
dc.titleInvestigations of the dose-dependent anomalous fading rate of feldspar from sedimentsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-3727&volume=41&spage=225502&epage=&date=2008&atitle=Investigations+of+the+dose-dependent+anomalous+fading+rate+of+feldspar+from+sedimentsen_HK
dc.identifier.emailLi, B:boli@hku.hken_HK
dc.identifier.emailLi, SH:shli@hku.hken_HK
dc.identifier.authorityLi, B=rp00736en_HK
dc.identifier.authorityLi, SH=rp00740en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/0022-3727/41/22/225502en_HK
dc.identifier.scopuseid_2-s2.0-58149306139en_HK
dc.identifier.hkuros157615en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-58149306139&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume41en_HK
dc.identifier.issue22en_HK
dc.identifier.isiWOS:000260738100053-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLi, B=36072316000en_HK
dc.identifier.scopusauthoridLi, SH=24438103700en_HK

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