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F-18 Half-life measurement using 2-gamma coincidence method

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dc.contributor.authorKang, YS-
dc.contributor.authorAhn, JK-
dc.contributor.authorKim, Sung Hyun-
dc.contributor.authorByun, JI-
dc.contributor.authorHan, JB-
dc.contributor.authorLee, KB-
dc.date.available2018-07-18T02:09:48Z-
dc.date.created2018-03-15-
dc.date.issued2015-11-
dc.identifier.issn0168-9002-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/4847-
dc.description.abstractThe accuracy of the half-life measurement of short-lived radioisotopes such as positron-emitting F-18 (tau(1/2) approximate to 100 min) is limited mainly by inaccuracies in the detector counting statistics. Gamma-ray measurement with a high-activity F-18 source requires counting-loss corrections to compensate for random summing effects and the detector's dead time. In this study, we measure the half-life of F-18 with two 511-keV gamma-rays using two high-purity germanium (HPGe) detectors. The counting-loss corrections are performed via two approaches to address the problems of random coincidence summing and dead time: a half-life measurement with a Na-22 source and a Geant4 simulation of the detector response. Variations in the full-width at half maximum (FWHM) of the 511-keV peak are found to show good correlation with the random summing effect. The half-life of F-18 is estimated as 109.73 +/- 0.14 min. (C) 2015 Elsevier B.V. All rights reserved-
dc.languageENG-
dc.publisherELSEVIER SCIENCE BV-
dc.titleF-18 Half-life measurement using 2-gamma coincidence method-
dc.typeArticle-
dc.type.rimsA-
dc.identifier.wosid000362282200002-
dc.identifier.scopusid2-s2.0-84941037019-
dc.date.tcdate2018-10-01-
dc.date.scptcdate2018-10-01-
dc.subject.keywordCoincidence measurement-
dc.subject.keywordDead time correction-
dc.subject.keywordHPGe detector-
dc.subject.keywordF-18-
dc.contributor.affiliatedAuthorKim, Sung Hyun-
dc.identifier.bibliographicCitationNUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, v.801, no., pp.7 - 10-
dc.description.scptc0-
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Center for Underground Physics(지하실험 연구단) > Journal Papers (저널논문)
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