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Observing flow using fast neutron radiography and positron emission particle tracking
Dynamic flow of material has been studied using fast neutron radiography (FNR) and positron emission particle tracking (PEPT). A new fast neutron imaging system was commissioned at The South African Nuclear Energy Corporation, Pretoria, as part of this study, although FNR measurements were ultimatel...
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| Format: | Thesis |
| Language: | English |
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Department of Physics
2021
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| _version_ | 1867613150307680256 |
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| access_status_str | Open Access |
| author | Daniels, Graham Clinton |
| author2 | Buffler, Andrew |
| author_browse | Buffler, Andrew Daniels, Graham Clinton |
| author_facet | Buffler, Andrew Daniels, Graham Clinton |
| author_sort | Daniels, Graham Clinton |
| collection | Thesis |
| description | Dynamic flow of material has been studied using fast neutron radiography (FNR) and positron emission particle tracking (PEPT). A new fast neutron imaging system was commissioned at The South African Nuclear Energy Corporation, Pretoria, as part of this study, although FNR measurements were ultimately performed at PhysikalischTechnische Bundesanstalt (PTB), Braunschweig. The PEPT studies were undertaken at the PEPT Cape Town facility located at iThemba LABS, Cape Town. The steady state motion of media, within a laboratory-scale tumbling mill, was studied for a range of speed and media mixes, using both FNR and PEPT. Several operational parameters were derived from the data, which could be related to potential improvements to the milling efficiency. The blending of FNR and PEPT data for the study of steady state flow, was explored for the first time. In addition, the flow of water through porous media was studied using FNR, which enabled the determination of the hydraulic conductivity, and hence intrinsic permeability, of the media within the column. The potential of using FNR, without or without PEPT, for the study of material in motion is discussed. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/33606 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:31:34.243Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Department of Physics |
| publisherStr | Department of Physics |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/33606 Observing flow using fast neutron radiography and positron emission particle tracking Daniels, Graham Clinton Buffler, Andrew fast neutron radiography positron emission particle tracking FNR measurements Cape Town Dynamic flow of material has been studied using fast neutron radiography (FNR) and positron emission particle tracking (PEPT). A new fast neutron imaging system was commissioned at The South African Nuclear Energy Corporation, Pretoria, as part of this study, although FNR measurements were ultimately performed at PhysikalischTechnische Bundesanstalt (PTB), Braunschweig. The PEPT studies were undertaken at the PEPT Cape Town facility located at iThemba LABS, Cape Town. The steady state motion of media, within a laboratory-scale tumbling mill, was studied for a range of speed and media mixes, using both FNR and PEPT. Several operational parameters were derived from the data, which could be related to potential improvements to the milling efficiency. The blending of FNR and PEPT data for the study of steady state flow, was explored for the first time. In addition, the flow of water through porous media was studied using FNR, which enabled the determination of the hydraulic conductivity, and hence intrinsic permeability, of the media within the column. The potential of using FNR, without or without PEPT, for the study of material in motion is discussed. 2021-07-12T19:17:17Z 2021-07-12T19:17:17Z 2021 2021-07-12T18:57:28Z Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/33606 eng application/pdf Department of Physics Faculty of Science |
| spellingShingle | fast neutron radiography positron emission particle tracking FNR measurements Cape Town Daniels, Graham Clinton Observing flow using fast neutron radiography and positron emission particle tracking |
| thesis_degree_str | Doctoral |
| title | Observing flow using fast neutron radiography and positron emission particle tracking |
| title_full | Observing flow using fast neutron radiography and positron emission particle tracking |
| title_fullStr | Observing flow using fast neutron radiography and positron emission particle tracking |
| title_full_unstemmed | Observing flow using fast neutron radiography and positron emission particle tracking |
| title_short | Observing flow using fast neutron radiography and positron emission particle tracking |
| title_sort | observing flow using fast neutron radiography and positron emission particle tracking |
| topic | fast neutron radiography positron emission particle tracking FNR measurements Cape Town |
| url | http://hdl.handle.net/11427/33606 |
| work_keys_str_mv | AT danielsgrahamclinton observingflowusingfastneutronradiographyandpositronemissionparticletracking |