Orientador: Prof. Dr. Marcelo Augusto Leigui de Oliveira / Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Física, 2016. / We present in this work studies on ultra-high energy cosmic rays using the air-
uorescence detection technique. The research main objective consists in event reconstructions from a fluorescence telescope, such that a simulation code has been developed taking into account the physical processes involved in the generation and the propagation of
uorescence photons from an extensive air shower to a telescope. The secondary particles of air showers has been previously obtained using CORSIKA code for dierent primary energies and compositions.
Furthermore, the photon generation has been calculated using Bethe and Bloch equation for
the energy loss of electrons and positrons in air and the
uorescence yield parameterized with air conditions at given altitudes. The attenuation of photons towards the telescope has been calculated for Rayleigh and Mie scatterings. With the developed simulation, it was possible to study the dependence of the shower maximum depth in the atmosphere, considering dierent experimental congurations for the telescopes used in the Pierre Auger Observatory, Telescope Array and MonRAt. Finally, the reconstruction of the geometric parameters of cosmic rays has been performed by the determination of the arrival directions and the angular reconstruction limits.
| Identifer | oai:union.ndltd.org:IBICT/oai:BDTD:102701 |
| Date | January 2016 |
| Creators | Luzio, Vitor Prestes |
| Contributors | Oliveira, Marcelo Augusto Leigui, Gregores, Eduardo de Moraes, Peixoto, Carlos José Todero |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf, 168 f. : il. |
| Source | reponame:Repositório Institucional da UFABC, instname:Universidade Federal do ABC, instacron:UFABC |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | http://biblioteca.ufabc.edu.br/index.php?codigo_sophia=102701&midiaext=72854, http://biblioteca.ufabc.edu.br/index.php?codigo_sophia=102701&midiaext=72855, Cover: http://biblioteca.ufabc.edu.brphp/capa.php?obra=102701 |
Page generated in 0.0021 seconds