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Zavisnost efikasnosti germanijumskih detektora od gustine uzoraka u spektrometriji gama zračenja

dc.creatorVukašinović, Ivana
dc.creatorTodorović, Dragana
dc.creatorPopović, Dragana R.
dc.date.accessioned2020-12-17T19:00:44Z
dc.date.available2020-12-17T19:00:44Z
dc.date.issued2007
dc.identifier.issn1451-3994
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/1492
dc.description.abstractThe effect of the density of environmental samples on the counting efficiency of Ge detectors used in gamma-spectrometry was studied. The dependence εff(ρ) was determined for two HPGe detectors (relative efficiencies 18% and 20%) using five radioactive standard reference materials (silicone resins, epoxy resin, milk powder, soil) with different matrix densities (0.45-1.22 g/cm3) in Marinelli beakers (V = 500 cm3). The dependence of efficiency vs. density was found to be linear and the regression parameters for energies in the range of 60-2000 keV were determined, too. The effect of variation in density on the counting efficiency of Ge detectors is dominant in the range of lower energies (60-600 keV) and de creases with energies in the higher energy range.en
dc.description.abstractIspitivan je uticaj gustine uzoraka iz životne sredine na efikasnost brojanja germanijumskih detektora u spektrometriji gama zračenja. Zavisnost εff(ρ) određena je za dva HPGe detektora (relativnih efikasnosti 18% i 20%) za različite radioaktivne standardne referentne materijale (silikonske smole epoksi smolu, mleko u prahu, zemlju) različitih gustina (0,45-1,22 g/cm3) u Marineli posudama zapremine V = 500 cm3. Utvrđena je linearna zavisnost efikasnosti brojanja od gustine uzoraka pri čemu su određeni parametri linearne regresije za niz energija iz intervala od 60-2000 keV. Efekt promene gustina na efikasnost brojanja germanijumskih detektora dominantan je u intervalu nižih energija (60-600 keV) i smanjuje se sa porastom energije u intervalu viših energija.sr
dc.publisherUniverzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceNuclear Technology and Radiation Protection
dc.subjectgamma-spectrometryen
dc.subjectcounting efficiencyen
dc.subjectenvironmental samplesen
dc.subjectGe detectoren
dc.subjectgama spektrometrijasr
dc.subjectefikasnost brojanjasr
dc.subjectuzorci okolinesr
dc.subjectgermanijumskijdetektorsr
dc.titleThe dependence of Ge detectors efficiency on the density of the samples in gamma-ray spectrometryen
dc.titleZavisnost efikasnosti germanijumskih detektora od gustine uzoraka u spektrometriji gama zračenjasr
dc.typearticle
dc.rights.licenseBY-NC-ND
dc.citation.epage63
dc.citation.issue2
dc.citation.other22(2): 58-63
dc.citation.spage58
dc.citation.volume22
dc.identifier.fulltexthttp://aspace.agrif.bg.ac.rs/bitstream/id/431/1489.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_agrospace_1492
dc.type.versionpublishedVersion


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