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The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry
Bibliography: pages 94-99.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Geological Sciences
2016
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| _version_ | 1867614419699105792 |
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| access_status_str | Open Access |
| author | Van Achterbergh, Esmé |
| author2 | Le Roex, Anton |
| author_browse | Le Roex, Anton Van Achterbergh, Esmé |
| author_facet | Le Roex, Anton Van Achterbergh, Esmé |
| author_sort | Van Achterbergh, Esmé |
| collection | Thesis |
| description | Bibliography: pages 94-99. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/22046 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:51:45.017Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Department of Geological Sciences |
| publisherStr | Department of Geological Sciences |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/22046 The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry Van Achterbergh, Esmé Le Roex, Anton Gurney, John J Geological Sciences trace element microanalysis Bibliography: pages 94-99. 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. 2016-10-03T04:06:11Z 2016-10-03T04:06:11Z 1995 Master Thesis Masters MSc http://hdl.handle.net/11427/22046 eng application/pdf Department of Geological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Geological Sciences trace element microanalysis Van Achterbergh, Esmé The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry |
| thesis_degree_str | Master's |
| title | The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry |
| title_full | The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry |
| title_fullStr | The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry |
| title_full_unstemmed | The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry |
| title_short | The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry |
| title_sort | development of the national accelerator centre proton microprobe as an analytical tool in geochemistry |
| topic | Geological Sciences trace element microanalysis |
| url | http://hdl.handle.net/11427/22046 |
| work_keys_str_mv | AT vanachterberghesme thedevelopmentofthenationalacceleratorcentreprotonmicroprobeasananalyticaltoolingeochemistry AT vanachterberghesme developmentofthenationalacceleratorcentreprotonmicroprobeasananalyticaltoolingeochemistry |