Speaker
Ms
Mistura Bolaji Ajani
(University of the Witwatersrand/ iThemba LABS)
Description
A low background Hyper Pure Germanium detector was used to determine the radioactivity levels in soil samples collected from Southern area of Chad in Central Africa.
The calculated activity concentrations were determined for the following radionuclides: $^{226}$Ra, $^{238}$U and $^{232}$Th as well as $^{40}$K and $^{137}$Cs (anthropogenic).
In order to validate our experimental result regarding efficiency calibration, GEANT4 Monte Carlo code was utilised to test the peak efficiency characterizations of $^{40}$K, $^{22}$Na, $^{137}$Cs, $^{60}$Co and $^{152}$Eu. This comparison should show how the code agree with experimentally obtained efficiencies of our detector and in which part of the spectrum do the discrepancies appear.
Primary authors
Ms
Mistura Bolaji Ajani
(University of the Witwatersrand/ iThemba LABS)
Dr
Peane Maleka
(iThemba LABS)
Prof.
Iyabo Usman
(University of the Witwatersrand)
