BROWSE

Related Scientist

kim,sunghyun's photo.

kim,sunghyun
지하실험연구단
more info

ITEM VIEW & DOWNLOAD

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

Cited 1 time in webofscience Cited 1 time in scopus
1,521 Viewed 174 Downloaded
Title
F-18 Half-life measurement using 2-gamma coincidence method
Author(s)
Kang, YS; Ahn, JK; Kim, Sung Hyun; Byun, JI; Han, JB; Lee, KB
Subject
Coincidence measurement, ; Dead time correction, ; HPGe detector, ; F-18
Publication Date
2015-11
Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, v.801, pp.7 - 10
Publisher
ELSEVIER SCIENCE BV
Abstract
The 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
URI
https://pr.ibs.re.kr/handle/8788114/4847
DOI
10.1016/j.nima.2015.08.025
ISSN
0168-9002
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
1-s2.0-S0168900215009596-main.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse