Comparative study on gamma-ray detectors for in-situ ocean radiation monitoring system SCIE SCOPUS

DC Field Value Language Lee, Seungeun - Park, Junsung - Lee, Jae Sung - Seo, Hee - Ko, Guen Bae - Seo, Jungmin - Kim, Soo Mee - 2023-04-19T00:30:03Z - 2023-04-19T00:30:03Z - 2023-04-18 - 2023-07 -
dc.identifier.issn 0969-8043 -
dc.identifier.uri -
dc.description.abstract Large-sized crystals and state-of-the-art photosensors are desirable p with low environmental radioactivity (e.g., 1–2 Bq∙m−3 137Cs in surface seawater) for homeland security purposes. We compared the performances of two different gamma-ray detector assemblies, GAGG crystal + silicon photomultiplier (SiPM) and NaI(Tl) crystal + photomultiplier tube, for our mobile in-situ ocean radiation monitoring system. We performed energy calibration, followed by water tank experiments with varying the depth of a137Cs point source. Experimental energy spectra were compared with MCNP-simulated spectra with identical setup and the consistency was validated. We finally assessed the detection efficiency and minimum detectable activity (MDA) of the detectors. Both GAGG and NaI detectors exhibited favorable energy resolutions (7.98 ± 0.13% and 7.01 ± 0.58% at 662 keV, respectively) and MDAs (33.1 ± 0.0645 and 13.5 ± 0.0327 Bq∙m−3 for 24-h 137Cs measurement, respectively). Matching the geometry of the GAGG crystal with that of the NaI crystal, the GAGG detector outperformed the NaI detector. The results demonstrated that the GAGG detector is potentially advantageous over the NaI detector in detection efficiency and compactness. -
dc.description.uri 1 -
dc.language English -
dc.title Comparative study on gamma-ray detectors for in-situ ocean radiation monitoring system -
dc.type Article -
dc.citation.title Applied Radiation and Isotopes -
dc.citation.volume 197 -
dc.contributor.alternativeName 서정민 -
dc.contributor.alternativeName 김수미 -
dc.identifier.bibliographicCitation Applied Radiation and Isotopes, v.197 -
dc.identifier.doi 10.1016/j.apradiso.2023.110826 -
dc.identifier.scopusid 2-s2.0-85153091053 -
dc.identifier.wosid 000986999600001 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.description.isOpenAccess N -
dc.subject.keywordPlus ENERGY RESOLUTION -
dc.subject.keywordPlus SPECTROMETRY -
dc.subject.keywordPlus PERFORMANCE -
dc.subject.keywordPlus PLANT -
dc.subject.keywordAuthor GAGG-SiPM detector -
dc.subject.keywordAuthor NaI(Tl)-PMT detector -
dc.subject.keywordAuthor In-situ ocean radiation monitoring -
dc.subject.keywordAuthor Spectrometers -
dc.subject.keywordAuthor MCNP simulation -
dc.subject.keywordAuthor Homeland securit -
dc.relation.journalWebOfScienceCategory Chemistry, Inorganic & Nuclear -
dc.relation.journalWebOfScienceCategory Nuclear Science & Technology -
dc.relation.journalWebOfScienceCategory Radiology, Nuclear Medicine & Medical Imaging -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Chemistry -
dc.relation.journalResearchArea Nuclear Science & Technology -
dc.relation.journalResearchArea Radiology, Nuclear Medicine & Medical Imaging -
Appears in Collections:
Marine Industry Research Division > Maritime ICT & Mobility Research Department > 1. Journal Articles
Files in This Item:
There are no files associated with this item.


Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.