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SUMMARY:Investigation of limit of detection using standard radioactive sou
 rces with a LaBr3(Ce) detector
DTSTART;VALUE=DATE-TIME:20210913T093000Z
DTEND;VALUE=DATE-TIME:20210913T094500Z
DTSTAMP;VALUE=DATE-TIME:20260818T115249Z
UID:indico-contribution-1582@indico.tlabs.ac.za
DESCRIPTION:Speakers: Ferdie van Niekerk ()\nInvestigation of limit of det
 ection using standard radioactive sources with a LaBr3(Ce) detector\nF. va
 n Niekerk1\, S.R. Johnson2\, P. Jones3\n1Department of Physics\, Universit
 y of Stellenbosch.\n2Department of Physics\, University of Cape Town.\n3De
 partment of Subatomic Physics\, iThemba LABS.\n\nKeywords: LaBr3(Ce) detec
 tor\; Background radiation\; Gamma radiation\n\nAbstract\n\nAmbient backgr
 ound radiation has been measured using a LaBr3(Ce) detector. This backgrou
 nd gamma-radiation is mainly a result of construction materials (such as c
 oncrete) and air. Radionuclides that form part of the background have been
  identified after an energy calibration of the detector was performed usin
 g 22Na\, 60Co and 152Eu radiation sources. These same sources have been me
 asured at increasing distances from the detector. The study focussed mainl
 y on the determination of the detection limits of each radiation source ta
 king into account the presence of background radiation. Therefore\, the ch
 ange in the intensity measured for each source as a function of increasing
  distance from the detector has been emphasised. This application is in re
 lation to the solid angle between the points of the radiation source and t
 he active detector volume. Further studies and application of all data ava
 ilable will focus on the relevant factors in order to calculate the limit 
 of detection for a specific activity for each radiation source. \n\nThis s
 tudy forms part of a broader research project that entails the design\, bu
 ilding and commissioning of a prototype mobile gamma-ray detection system 
 equipped with a LaBr3(Ce) detector. The successful development of such a d
 etector system will enable in situ measurements of radiation in various ro
 bust terrestrial environments with improved sensitivity and spectral resol
 ution.\n\nhttps://indico.tlabs.ac.za/event/92/contributions/1582/
LOCATION:Zoom
URL:https://indico.tlabs.ac.za/event/92/contributions/1582/
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