Rapid identification of supernovae at SNO+
<p>Core-collapse supernova are some of the most cataclysmic events known to occur in the universe. During the brief time of collapse and explosion, a supernova releases as much energy as the progenitor star does over its entire lifetime. 99% of this energy is thought to be emitted as neutrinos...
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| Other Authors: | |
| Format: | Thesis |
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2015
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| _version_ | 1826304589929906176 |
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| author | Cavalli, L |
| author2 | Biller, S |
| author_facet | Biller, S Cavalli, L |
| author_sort | Cavalli, L |
| collection | OXFORD |
| description | <p>Core-collapse supernova are some of the most cataclysmic events known to occur in the universe. During the brief time of collapse and explosion, a supernova releases as much energy as the progenitor star does over its entire lifetime. 99% of this energy is thought to be emitted as neutrinos, detectable by SNO+ via charged and neutral current interactions. This thesis explores the use of distinctive supernova neutrino interactions, specifically inverse beta decay and <sup>12</sup>C de-excitation, in order to rapidly tag supernova candidates on an event-by-event basis using a processor running near-line to the main SNO+ computing architecture. This was achieved via the design and construction of a prototype trigger system, known as the L3, running within the main SNO+ analysis software package RAT. Preliminary results over simulated supernova data at 10, 30 and 100 kpc are presented, alongside tests over early SNO+ darkrun data. Finally, L3 efficiency calculations are performed over Monte Carlo data in scintillator, with the prototype trigger demonstrating greater than 95% efficiency at tagging galactic supernova out to approximately 20 kpc.<p></p></p> |
| first_indexed | 2024-03-07T06:20:08Z |
| format | Thesis |
| id | oxford-uuid:f2726eeb-6ba1-4dec-b6c8-94e6337dc967 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T06:20:08Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | oxford-uuid:f2726eeb-6ba1-4dec-b6c8-94e6337dc9672022-03-27T12:03:52ZRapid identification of supernovae at SNO+Thesishttp://purl.org/coar/resource_type/c_bdccuuid:f2726eeb-6ba1-4dec-b6c8-94e6337dc967ORA Deposit2015Cavalli, LBiller, S<p>Core-collapse supernova are some of the most cataclysmic events known to occur in the universe. During the brief time of collapse and explosion, a supernova releases as much energy as the progenitor star does over its entire lifetime. 99% of this energy is thought to be emitted as neutrinos, detectable by SNO+ via charged and neutral current interactions. This thesis explores the use of distinctive supernova neutrino interactions, specifically inverse beta decay and <sup>12</sup>C de-excitation, in order to rapidly tag supernova candidates on an event-by-event basis using a processor running near-line to the main SNO+ computing architecture. This was achieved via the design and construction of a prototype trigger system, known as the L3, running within the main SNO+ analysis software package RAT. Preliminary results over simulated supernova data at 10, 30 and 100 kpc are presented, alongside tests over early SNO+ darkrun data. Finally, L3 efficiency calculations are performed over Monte Carlo data in scintillator, with the prototype trigger demonstrating greater than 95% efficiency at tagging galactic supernova out to approximately 20 kpc.<p></p></p> |
| spellingShingle | Cavalli, L Rapid identification of supernovae at SNO+ |
| title | Rapid identification of supernovae at SNO+ |
| title_full | Rapid identification of supernovae at SNO+ |
| title_fullStr | Rapid identification of supernovae at SNO+ |
| title_full_unstemmed | Rapid identification of supernovae at SNO+ |
| title_short | Rapid identification of supernovae at SNO+ |
| title_sort | rapid identification of supernovae at sno |
| work_keys_str_mv | AT cavallil rapididentificationofsupernovaeatsno |