Radiation Protection Dosimetry · 2000 · 16 citations · 0 references
Natural SciencesChemistryNuclear EngineeringNuclear ChemistryNuclear MaterialsRadiation MeasurementRadiation ChemistryRadiation Hazard AssessmentRadioactive DecayRadioactive PollutionRadiochemical AnalysisRadiological Hazard IdentificationActivity Concentration AssessmentFission ReactionsNatural Radioactivity MeasurementRadiation ContaminationRadioactivity MeasurementRadiological ContaminationRadionuclide ContaminationRadionuclide Content Assessment
The radioactivity concentration of 226Ra, 232Th and 40K were measured by using gamma ray spectroscopy in different types of brick samples (bangla, ceramic and picket) fabricated and used in the urban areas of Dhaka city and its suburbs. A knowledge of gamma radioactivity is necessary to adopt preventive measures to minimise the harmful effects of ionising radiation. The radium equivalent activity concentrations, external and internal hazard indices (Hext and Hint) in these brick samples were determined and were found to be comparable with those of other countries.