Improvement of a spectrum-to-dose conversion function for electronic personal dosimeters

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dc.contributor.authorPark, K.ko
dc.contributor.authorKim, J.ko
dc.contributor.authorLim, Kyung Taekko
dc.contributor.authorKim, G.ko
dc.contributor.authorLee, M.ko
dc.contributor.authorKim, H.ko
dc.contributor.authorCho, Gyuseongko
dc.date.accessioned2020-05-12T07:20:08Z-
dc.date.available2020-05-12T07:20:08Z-
dc.date.created2020-05-11-
dc.date.created2020-05-11-
dc.date.created2020-05-11-
dc.date.issued2020-02-
dc.identifier.citationJOURNAL OF INSTRUMENTATION, v.15, no.2-
dc.identifier.issn1748-0221-
dc.identifier.urihttp://hdl.handle.net/10203/274169-
dc.description.abstractFor electronic personal dosimeters (EPDs) based on a spectroscopy system, it is necessary to accurately measure the dose in real-time from the gamma energy spectra. The method of spectrum-to-dose conversion is being used instead of the method of count-to-dose conversion. The G(E) function, a typical method of spectrum-to-dose conversion has been applied to various instruments due to its good dose measurement performance and the advantage of real-time measurements. In this manuscript, we present a method to increase the accuracy of G(E) function for the EPD consisting of a 3 x 3 mm(2) PIN diode coupled with a 3 x 3 x 3 mm(3) CsI(Tl) scintillator. The new G(E) function was calculated using the adaptive moment estimation (ADAM) method based on Monte Carlo simulation. The proposed G(E) function is verified by comparison with the least-square method (LSM), which is the conventional method for calculating the G(E) function and with the gradient-descent method (GDM), which is the basis for the ADAM. The relative difference was acquired to compare the converted dose value using each G(E) function by using Am-241, Co-57, Na-22, Cs-137, Mn-54 and Co-60 radioisotopes. In addition, the energy response to Cs-137 of each G(E) function was obtained. The relative difference of G(E) function according to LSM, GDM, and ADAM was in the range of +/- 28.54, +/- 12.59, and +/- 9.9%, respectively, and the energy response to Cs-137 was 0.71 to 1, 0.87 to 1.02, and 0.9 to 1.03, respectively.-
dc.languageEnglish-
dc.publisherIOP PUBLISHING LTD-
dc.titleImprovement of a spectrum-to-dose conversion function for electronic personal dosimeters-
dc.typeArticle-
dc.identifier.wosid000527943500018-
dc.identifier.scopusid2-s2.0-85081283964-
dc.type.rimsART-
dc.citation.volume15-
dc.citation.issue2-
dc.citation.publicationnameJOURNAL OF INSTRUMENTATION-
dc.identifier.doi10.1088/1748-0221/15/02/C02018-
dc.contributor.localauthorCho, Gyuseong-
dc.contributor.nonIdAuthorPark, K.-
dc.contributor.nonIdAuthorKim, J.-
dc.contributor.nonIdAuthorKim, G.-
dc.contributor.nonIdAuthorLee, M.-
dc.contributor.nonIdAuthorKim, H.-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle; Proceedings Paper-
dc.subject.keywordAuthorDosimetry concepts and apparatus-
dc.subject.keywordAuthorAnalysis and statistical methods-
dc.subject.keywordAuthorData processing methods-
dc.subject.keywordAuthorModels and simulations-
dc.subject.keywordPlusAMBIENT-
dc.subject.keywordPlusH-ASTERISK(10)-
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NE-Journal Papers(저널논문)
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