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An investigation into surface effects in thin film plastic scintillators
An investigation into the luminescent response of thin film plastic scintillators as a function of their method of preparation is made. Investigations are carried out on NE102A and NE118 using four different methods of preparation. It is found that the Birks model for luminescence as a function of f...
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| Format: | Thesis |
| Language: | English |
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Department of Physics
2016
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| _version_ | 1867613267199787008 |
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| access_status_str | Open Access |
| author | Wentzel, John P |
| author_browse | Wentzel, John P |
| author_facet | Wentzel, John P |
| author_sort | Wentzel, John P |
| collection | Thesis |
| description | An investigation into the luminescent response of thin film plastic scintillators as a function of their method of preparation is made. Investigations are carried out on NE102A and NE118 using four different methods of preparation. It is found that the Birks model for luminescence as a function of film thickness successfully explains the response in three of the four methods of preparation, but fails to explain the response of thin films prepared on a glass surface. These films show an unexpected non-linearity in their behaviour. It is proposed that the behaviour in these films can be explained in terms of the existence of surface regions in these films. A model based on the existence of these surface regions is prepared. It is further proposed that, in general, the luminescent response of thin films of plastic scintillator is dependent on their method of preparation. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/18348 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:25.185Z |
| 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 Physics |
| publisherStr | Department of Physics |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/18348 An investigation into surface effects in thin film plastic scintillators Wentzel, John P Physics An investigation into the luminescent response of thin film plastic scintillators as a function of their method of preparation is made. Investigations are carried out on NE102A and NE118 using four different methods of preparation. It is found that the Birks model for luminescence as a function of film thickness successfully explains the response in three of the four methods of preparation, but fails to explain the response of thin films prepared on a glass surface. These films show an unexpected non-linearity in their behaviour. It is proposed that the behaviour in these films can be explained in terms of the existence of surface regions in these films. A model based on the existence of these surface regions is prepared. It is further proposed that, in general, the luminescent response of thin films of plastic scintillator is dependent on their method of preparation. 2016-03-28T14:45:11Z 2016-03-28T14:45:11Z 1992 Master Thesis Masters MSc http://hdl.handle.net/11427/18348 eng application/pdf Department of Physics Faculty of Science University of Cape Town |
| spellingShingle | Physics Wentzel, John P An investigation into surface effects in thin film plastic scintillators |
| thesis_degree_str | Master's |
| title | An investigation into surface effects in thin film plastic scintillators |
| title_full | An investigation into surface effects in thin film plastic scintillators |
| title_fullStr | An investigation into surface effects in thin film plastic scintillators |
| title_full_unstemmed | An investigation into surface effects in thin film plastic scintillators |
| title_short | An investigation into surface effects in thin film plastic scintillators |
| title_sort | investigation into surface effects in thin film plastic scintillators |
| topic | Physics |
| url | http://hdl.handle.net/11427/18348 |
| work_keys_str_mv | AT wentzeljohnp aninvestigationintosurfaceeffectsinthinfilmplasticscintillators AT wentzeljohnp investigationintosurfaceeffectsinthinfilmplasticscintillators |