Determination of natural radioactivity concentrations in soil: a comparative study of Windows and Full Spectrum Analysis

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dc.contributor.advisorLindsay, R.
dc.contributor.advisorNewman, R.T.
dc.contributor.authorMaphoto, Katse Piet
dc.contributor.otherDept. of Physics
dc.contributor.otherFaculty of Science
dc.date.accessioned2013-06-18T08:07:25Z
dc.date.accessioned2024-10-30T10:23:35Z
dc.date.available2007/04/16 15:24
dc.date.available2007/04/16
dc.date.available2013-06-18T08:07:25Z
dc.date.available2024-10-30T10:23:35Z
dc.date.issued2004
dc.descriptionMagister Scientiae - MScen_US
dc.description.abstractIn this study, two methods of analysing activity concentrations of natural radionuclides (U, Th and K) in soil are critically compared. These are the Window Analysis (WA) and Full Spectrum Analysis (FSA). In the usual WA method, the activity concentrations are determined from the net counts of the windows set around individual γ-ray peaks associated with the decay of U, Th and K. In the FSA method, the full energy spectrum is considered and the measured spectrum is described as the sum of the three standard spectra (associated with U, Th and K, respectively), each multiplied by an unknown concentration. The concentrations are determined from the FSA and correspond to the activity concentrations of U, Th and K in the soil. The standard spectra derived from separate calibration measurements using the HPGe detector, represents the response of the HPGe to a Marinelli sample beaker containing an activity concentration of 1 Bq/kg.en_US
dc.description.countrySouth Africa
dc.identifier.urihttps://hdl.handle.net/10566/16656
dc.language.isoenen_US
dc.publisherUniversity of the Western Capeen_US
dc.rights.holderUniversity of the Western Capeen_US
dc.subjectSoilsen_US
dc.subjectRadioactive substancesen_US
dc.subjectRadioactivityen_US
dc.subjectEnvironmental aspectsen_US
dc.subjectMeasurementen_US
dc.subjectRadiationen_US
dc.subjectGamma ray detectorsen_US
dc.titleDetermination of natural radioactivity concentrations in soil: a comparative study of Windows and Full Spectrum Analysisen_US
dc.typeThesisen_US

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