Browsing Department of Physics and Astronomy by Author "Newman, R.T."
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Characterisation of natural radioactivity in Karoo Basin groundwater prior to shale gas exploration
Botha, Ryno (University of the Western Cape, 2017)The prospect of unconventional shale-gas development in the Karoo Basin (South Africa) has created the need to obtain baseline data on natural radioactivity in Karoo groundwaters. The Karoo Basin groundwater radiological ... -
Determination of natural radioactivity concentrations in soil: a comparative study of Windows and Full Spectrum Analysis
Maphoto, Katse Piet (University of the Western Cape, 2004)In 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 ... -
Determination of the photopeak detection efficiency of a HPGe detector, for volume sources, via Monte Carlo simulations
Damon, Raphael Wesley (University of the Western Cape, 2005)The Environmental Radioactivity Laboratory (ERL) at iThemba LABS undertakes experimental work using a high purity germanium (HPGe) detector for laboratory measurements. In this study the Monte Carlo transport code, MCNPX, ... -
In-situ measurements and calculation of radon gas concentration and exhalation from a tailings mine dump
Ongori, Joash Nyakondo (University of the Western Cape, 2013)In Africa as well as in the world, South Africa plays an important role in the mining industry which dates back almost 120 years. Mining activities in South Africa mainly take place in Gauteng Province. Every year millions ... -
Radiometric study of soil: the systematic effects
Joseph, Angelo Daniel (University of the Western Cape, 2007)The natural 238U, 232Th and 40K radioactive content of vineyard soil was measured with an in-situ gamma-ray detector. The activity concentrations measured with the in-situ detector are normalized using the laboratory-determined ...