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Conference Paper: Towards sub-100psec timing trough sonoluminescence light

TitleTowards sub-100psec timing trough sonoluminescence light
Authors
KeywordsDelayed Coincidence Timing
Sonoluminescence
Issue Date1997
PublisherTrans Tech Publications Ltd. The Journal's web site is located at http://www.scientific.net
Citation
Materials Science Forum, 1997, v. 255-257, p. 747-749 How to Cite?
AbstractThe increasing importance of positron lifetime spectroscopy in semiconductor defects studies, where defect and bulk lifetimes are often too close to be clearly resolved, places renewed importance on the drive towards achieving better instrumental resolution. Time resolutions (fwhm's) of 100ps or less, without significant loss of efficiency, would be highly desirable. The best resolution achieved to date on 22Na energy windows, is 124ps using a modified form of the XP2020UR photomultiplier coupled to NE111 scintillator [1]. In this Conference, we present timing investigations made with the newly discovered picosecond light emission from sonoluminescence. Sonoluminescence is the process in which an ultrasonic standing wave is used to produce flashes of light from a trapped water bubble [2]. The spectrum of the emitted light has a broadband spectrum and has repetitive pulse duration of less than 50ps. In this respect, sonoluminescence light can be usefully employed to study the sources of time jitter in photomultiplier and constant fraction discriminator combinations. We present provisional data on this present promising approach.
Persistent Identifierhttp://hdl.handle.net/10722/109817
ISSN
2005 Impact Factor: 0.399
References

 

DC FieldValueLanguage
dc.contributor.authorFan, Sen_HK
dc.contributor.authorBeling, CDen_HK
dc.contributor.authorFung, Sen_HK
dc.date.accessioned2010-09-26T01:38:32Z-
dc.date.available2010-09-26T01:38:32Z-
dc.date.issued1997en_HK
dc.identifier.citationMaterials Science Forum, 1997, v. 255-257, p. 747-749en_HK
dc.identifier.issn0255-5476en_HK
dc.identifier.urihttp://hdl.handle.net/10722/109817-
dc.description.abstractThe increasing importance of positron lifetime spectroscopy in semiconductor defects studies, where defect and bulk lifetimes are often too close to be clearly resolved, places renewed importance on the drive towards achieving better instrumental resolution. Time resolutions (fwhm's) of 100ps or less, without significant loss of efficiency, would be highly desirable. The best resolution achieved to date on 22Na energy windows, is 124ps using a modified form of the XP2020UR photomultiplier coupled to NE111 scintillator [1]. In this Conference, we present timing investigations made with the newly discovered picosecond light emission from sonoluminescence. Sonoluminescence is the process in which an ultrasonic standing wave is used to produce flashes of light from a trapped water bubble [2]. The spectrum of the emitted light has a broadband spectrum and has repetitive pulse duration of less than 50ps. In this respect, sonoluminescence light can be usefully employed to study the sources of time jitter in photomultiplier and constant fraction discriminator combinations. We present provisional data on this present promising approach.en_HK
dc.languageengen_HK
dc.publisherTrans Tech Publications Ltd. The Journal's web site is located at http://www.scientific.neten_HK
dc.relation.ispartofMaterials Science Forumen_HK
dc.rightsMaterials Science Forum. Copyright © Trans Tech Publications Ltd.en_HK
dc.subjectDelayed Coincidence Timingen_HK
dc.subjectSonoluminescenceen_HK
dc.titleTowards sub-100psec timing trough sonoluminescence lighten_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0255-5476&volume=255-257&spage=747&epage=749&date=1997&atitle=Towards+Sub-100psec+Timing+Trough+Sonoluminescence+Lighten_HK
dc.identifier.emailFan, S: stfan@hku.hken_HK
dc.identifier.emailBeling, CD: cdbeling@hkucc.hku.hken_HK
dc.identifier.emailFung, S: sfung@hku.hken_HK
dc.identifier.authorityFan, S=rp00355en_HK
dc.identifier.authorityBeling, CD=rp00660en_HK
dc.identifier.authorityFung, S=rp00695en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-5244325323en_HK
dc.identifier.hkuros29707en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-5244325323&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume255-257en_HK
dc.identifier.spage747en_HK
dc.identifier.epage749en_HK
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridFan, S=7402678224en_HK
dc.identifier.scopusauthoridBeling, CD=7005864180en_HK
dc.identifier.scopusauthoridFung, S=7201970040en_HK

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