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Alpha decay of excited states of carbon-12
A crystal of the carbon-rich phosphor, anthracene, has been bombarded by monoenergetic fast neutrons. Alpha-particle decays of carbon nuclei have been separated from other events by a specialised application of the pulse shape discrimination technique. A numerical analysis of the data has yielded al...
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| Format: | Thesis |
| Language: | English |
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Department of Physics
2016
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| _version_ | 1867613568401145856 |
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| access_status_str | Open Access |
| author | Shackleton, David |
| author2 | Brooks, F D |
| author_browse | Brooks, F D Shackleton, David |
| author_facet | Brooks, F D Shackleton, David |
| author_sort | Shackleton, David |
| collection | Thesis |
| description | A crystal of the carbon-rich phosphor, anthracene, has been bombarded by monoenergetic fast neutrons. Alpha-particle decays of carbon nuclei have been separated from other events by a specialised application of the pulse shape discrimination technique. A numerical analysis of the data has yielded alpha-particle energy spectra over a wide energy range. A counter has been assembled to detect neutrons scattered by carbon nuclei in the crystal, and the measurements repeated in coincidence with these neutrons. The energy range of particle resolving power has been extended. Structure in the resulting alpha-particle and proton energy spectra is attributed to particle decays of specific levels in carbon-12. It is shown how the experiment may be modified and extended to measure decay parameters in absolute terms. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/18131 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:38:13.156Z |
| 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:11427/18131 Alpha decay of excited states of carbon-12 Shackleton, David Brooks, F D Physics Particle Physics A crystal of the carbon-rich phosphor, anthracene, has been bombarded by monoenergetic fast neutrons. Alpha-particle decays of carbon nuclei have been separated from other events by a specialised application of the pulse shape discrimination technique. A numerical analysis of the data has yielded alpha-particle energy spectra over a wide energy range. A counter has been assembled to detect neutrons scattered by carbon nuclei in the crystal, and the measurements repeated in coincidence with these neutrons. The energy range of particle resolving power has been extended. Structure in the resulting alpha-particle and proton energy spectra is attributed to particle decays of specific levels in carbon-12. It is shown how the experiment may be modified and extended to measure decay parameters in absolute terms. 2016-03-21T19:26:50Z 2016-03-21T19:26:50Z 1970 Master Thesis Masters MSc http://hdl.handle.net/11427/18131 eng application/pdf Department of Physics Faculty of Science University of Cape Town |
| spellingShingle | Physics Particle Physics Shackleton, David Alpha decay of excited states of carbon-12 |
| thesis_degree_str | Master's |
| title | Alpha decay of excited states of carbon-12 |
| title_full | Alpha decay of excited states of carbon-12 |
| title_fullStr | Alpha decay of excited states of carbon-12 |
| title_full_unstemmed | Alpha decay of excited states of carbon-12 |
| title_short | Alpha decay of excited states of carbon-12 |
| title_sort | alpha decay of excited states of carbon 12 |
| topic | Physics Particle Physics |
| url | http://hdl.handle.net/11427/18131 |
| work_keys_str_mv | AT shackletondavid alphadecayofexcitedstatesofcarbon12 |