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Article: Observations of thermal transfer and the slow component of OSL signals from quartz

TitleObservations of thermal transfer and the slow component of OSL signals from quartz
Authors
KeywordsOSL
Quartz
Slow component
Thermal transfer
Issue Date2006
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/radmeas
Citation
Radiation Measurements, 2006, v. 41 n. 6, p. 639-648 How to Cite?
AbstractThe thermal transfer optically stimulated luminescence (OSL) signals of bleached samples of sedimentary quartz are investigated using repeated heat/OSL measurement cycles with different heating temperatures ranging from 200 to 360 {ring operator} C. Under optical stimulation, the thermal transfer OSL decays with stimulation time. A strong correlation is observed between the initial part and the final part of the OSL decay curves. This relationship is dependent on the heating conditions and thermal history of the sample. Our results suggest that the thermal transfer OSL is due to the retrapping of charges that originated from optically insensitive traps by thermal release during heating, and not from the slowly bleached component associated with bleachable traps. Two kinds of OSL traps are involved into the thermal transfer, one is corresponding to the 325 {ring operator} C TL peak and the other is related to more stable traps. The thermally transferred signals can be distinguished from dose-generated signals by making repeated measurements of thermally transferred OSL decay curves. © 2006 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/72620
ISSN
2015 Impact Factor: 1.071
2015 SCImago Journal Rankings: 0.592
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Ben_HK
dc.contributor.authorLi, SHen_HK
dc.contributor.authorWintle, AGen_HK
dc.date.accessioned2010-09-06T06:43:32Z-
dc.date.available2010-09-06T06:43:32Z-
dc.date.issued2006en_HK
dc.identifier.citationRadiation Measurements, 2006, v. 41 n. 6, p. 639-648en_HK
dc.identifier.issn1350-4487en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72620-
dc.description.abstractThe thermal transfer optically stimulated luminescence (OSL) signals of bleached samples of sedimentary quartz are investigated using repeated heat/OSL measurement cycles with different heating temperatures ranging from 200 to 360 {ring operator} C. Under optical stimulation, the thermal transfer OSL decays with stimulation time. A strong correlation is observed between the initial part and the final part of the OSL decay curves. This relationship is dependent on the heating conditions and thermal history of the sample. Our results suggest that the thermal transfer OSL is due to the retrapping of charges that originated from optically insensitive traps by thermal release during heating, and not from the slowly bleached component associated with bleachable traps. Two kinds of OSL traps are involved into the thermal transfer, one is corresponding to the 325 {ring operator} C TL peak and the other is related to more stable traps. The thermally transferred signals can be distinguished from dose-generated signals by making repeated measurements of thermally transferred OSL decay curves. © 2006 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/radmeasen_HK
dc.relation.ispartofRadiation Measurementsen_HK
dc.subjectOSLen_HK
dc.subjectQuartzen_HK
dc.subjectSlow componenten_HK
dc.subjectThermal transferen_HK
dc.titleObservations of thermal transfer and the slow component of OSL signals from quartzen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1350-4487&volume=41&spage=639&epage=648&date=2006&atitle=Observations+of+thermal+transfer+and+the+slow+component+of+OSL+signals+from+quartzen_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.doi10.1016/j.radmeas.2006.01.002en_HK
dc.identifier.scopuseid_2-s2.0-33745693956en_HK
dc.identifier.hkuros142728en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33745693956&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume41en_HK
dc.identifier.issue6en_HK
dc.identifier.spage639en_HK
dc.identifier.epage648en_HK
dc.identifier.isiWOS:000240703400001-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLi, B=36072316000en_HK
dc.identifier.scopusauthoridLi, SH=24438103700en_HK
dc.identifier.scopusauthoridWintle, AG=7005930050en_HK

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