Development of active shielding gamma probe: a simulation study

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dc.authoridKolcu, Onur Bugra/0000-0002-9177-1286
dc.contributor.authorKolcu, O. B.
dc.contributor.authorYetkin, T.
dc.contributor.authorIren, E.
dc.date.accessioned2024-05-19T14:51:16Z
dc.date.available2024-05-19T14:51:16Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractThe aim of the present study is to evaluate a gamma probe with active shielding by using GEANT4 simulation framework. We used BGO scintillators both for gamma detection and active shielding from a point radioactive source, namely 140 keV gammas from Tc-99m. All scintillators were coupled to the silicon photomultipliers with an active area of 3 x 3 mm(2). The response of the gamma probe to radiation was simulated using the optical photon transportation available in the GEANT4 package. We used the simulation results to determine the sensitivity, spatial and angular resolution, and shielding efficiencies in the air and scattering medium for the proposed gamma probe model according to NEMA NU 3-2004 standards. The ability of the probe to find the direction of emission was also evaluated. The sensitivity of the probe was found between 1262 -42284 cps/MBq in the scattering medium based on two scenarios based on active shielding use. In terms of FWHM, the spatial resolution in scattering medium at 30 mm source-to-probe distance was 31 mm and the angular resolution at the same distance was 59?. The shielding effectiveness of the probe was in the range of 89.90 +/- 0.65% and 97.20 +/- 0.19%. The emission directions of gammas were found with an error of less than 8 degrees.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [121F291]en_US
dc.description.sponsorshipThis study was supported by the Scientific and Technological Research Council of Turkey (TUBITAK Project No: 121F291).en_US
dc.identifier.doi10.1140/epjp/s13360-023-03792-x
dc.identifier.issn2190-5444
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85148740736en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org10.1140/epjp/s13360-023-03792-x
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5907
dc.identifier.volume138en_US
dc.identifier.wosWOS:000937008000001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofEuropean Physical Journal Plusen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmz20240519_kaen_US
dc.subjectSilicon Photomultiplieren_US
dc.subjectBreast-Canceren_US
dc.subjectNode Biopsyen_US
dc.subjectSentinelen_US
dc.titleDevelopment of active shielding gamma probe: a simulation studyen_US
dc.typeArticleen_US

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