The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry

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dc.contributor.advisorLe Roex, Antonen_ZA
dc.contributor.advisorGurney, John Jen_ZA
dc.contributor.authorVan Achterbergh, Esméen_ZA
dc.date.accessioned2016-10-03T04:06:11Z
dc.date.available2016-10-03T04:06:11Z
dc.date.issued1995en_ZA
dc.descriptionBibliography: pages 94-99.en_ZA
dc.description.abstractThis thesis describes work performed to establish and demonstrate a quantitative trace element microanalysis technique for geological material using protons accelerated by the Van de Graaff Accelerator at the National Accelerator Centre (NAC) in Faure near Cape Town. The method relies on the analysis of Proton Induced X-ray Emission (PIXE) spectra, interpreted with the help of the GeoPIXE software package. The use of the Si(Li) energy dispersive detector provides simultaneous multi-element detection at the parts-per-million (ppm) level, and a scanning beam facility permits trace element distributions to be studied at these levels. The calibration of the detector efficiency and the thicknesses of selectable X-ray attenuating filters was performed using pure elemental samples. This involved the accurate determination of the target to detector distance, the thickness of the active volume of the Si(Li) detector crystal, the thicknesses of all the absorbing layers between the sample and the detector crystal, and the assessment of the effects of incomplete charge collection in the detector.en_ZA
dc.identifier.apacitationVan Achterbergh, E. (1995). <i>The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Geological Sciences. Retrieved from http://hdl.handle.net/11427/22046en_ZA
dc.identifier.chicagocitationVan Achterbergh, Esmé. <i>"The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Geological Sciences, 1995. http://hdl.handle.net/11427/22046en_ZA
dc.identifier.citationVan Achterbergh, E. 1995. The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Van Achterbergh, Esmé AB - This thesis describes work performed to establish and demonstrate a quantitative trace element microanalysis technique for geological material using protons accelerated by the Van de Graaff Accelerator at the National Accelerator Centre (NAC) in Faure near Cape Town. The method relies on the analysis of Proton Induced X-ray Emission (PIXE) spectra, interpreted with the help of the GeoPIXE software package. The use of the Si(Li) energy dispersive detector provides simultaneous multi-element detection at the parts-per-million (ppm) level, and a scanning beam facility permits trace element distributions to be studied at these levels. The calibration of the detector efficiency and the thicknesses of selectable X-ray attenuating filters was performed using pure elemental samples. This involved the accurate determination of the target to detector distance, the thickness of the active volume of the Si(Li) detector crystal, the thicknesses of all the absorbing layers between the sample and the detector crystal, and the assessment of the effects of incomplete charge collection in the detector. DA - 1995 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1995 T1 - The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry TI - The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry UR - http://hdl.handle.net/11427/22046 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/22046
dc.identifier.vancouvercitationVan Achterbergh E. The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Geological Sciences, 1995 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/22046en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Geological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherGeological Sciencesen_ZA
dc.subject.othertrace element microanalysisen_ZA
dc.titleThe development of the national accelerator centre proton microprobe as an analytical tool in geochemistryen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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