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Article: Studies of thermal stability of trapped charges associated with OSL from quartz

TitleStudies of thermal stability of trapped charges associated with OSL from quartz
Authors
Issue Date2001
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, 2001, v. 34 n. 4, p. 493-498 How to Cite?
AbstractThe optically stimulated luminescence (OSL) from quartz relates to not only the trapped electrons associated with the OSL signals, but also the luminescence centres involved. In this paper we report pulse annealing and isothermal annealing experiments on a 17 ka old sedimentary quartz to study thermal stability of electrons in OSL traps and the trapped holes associated with the non-luminescence centres (R centres). The lifetimes obtained are in the order of magnitude of 109 and 104 years at 20°C, for electrons in the stable OSL traps and the holes associated with sensitivity change, respectively. The results indicate that the OSL sensitivity change is dominated by the transferring of holes from one type of R centre to luminescence centres (L centres), and is different from the 110°C TL peak, which appears to involve more than one type of R hole centre.
Persistent Identifierhttp://hdl.handle.net/10722/72656
ISSN
2015 Impact Factor: 2.772
2015 SCImago Journal Rankings: 0.682
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, SHen_HK
dc.contributor.authorChen, Gen_HK
dc.date.accessioned2010-09-06T06:43:52Z-
dc.date.available2010-09-06T06:43:52Z-
dc.date.issued2001en_HK
dc.identifier.citationJournal Of Physics D: Applied Physics, 2001, v. 34 n. 4, p. 493-498en_HK
dc.identifier.issn0022-3727en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72656-
dc.description.abstractThe optically stimulated luminescence (OSL) from quartz relates to not only the trapped electrons associated with the OSL signals, but also the luminescence centres involved. In this paper we report pulse annealing and isothermal annealing experiments on a 17 ka old sedimentary quartz to study thermal stability of electrons in OSL traps and the trapped holes associated with the non-luminescence centres (R centres). The lifetimes obtained are in the order of magnitude of 109 and 104 years at 20°C, for electrons in the stable OSL traps and the holes associated with sensitivity change, respectively. The results indicate that the OSL sensitivity change is dominated by the transferring of holes from one type of R centre to luminescence centres (L centres), and is different from the 110°C TL peak, which appears to involve more than one type of R hole centre.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.titleStudies of thermal stability of trapped charges associated with OSL from quartzen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-3727&volume=34&spage=493&epage=498&date=2001&atitle=Studies+of+thermal+stability+of+trapped+charges+associated+with+OSL+from+quartz.en_HK
dc.identifier.emailLi, SH:shli@hku.hken_HK
dc.identifier.authorityLi, SH=rp00740en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/0022-3727/34/4/309en_HK
dc.identifier.scopuseid_2-s2.0-0035249371en_HK
dc.identifier.hkuros63422en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035249371&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume34en_HK
dc.identifier.issue4en_HK
dc.identifier.spage493en_HK
dc.identifier.epage498en_HK
dc.identifier.isiWOS:000167349700009-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLi, SH=24438103700en_HK
dc.identifier.scopusauthoridChen, G=7407505500en_HK

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