Velocity and charge reconstruction with the AMS/RICH detector
| Autor: | Arruda, Luísa, Barão, Fernando, Borges, João, Carmo, Fernando, Gonçalves, Patrícia, Pimenta, Mário |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Proceedings of the 5th International Workshop New Worlds in Astroparticle Physics (Faro, Portugal 2005), p. 134-139, World Scientific |
| Druh dokumentu: | Working Paper |
| Popis: | The Alpha Magnetic Spectrometer (AMS), to be installed on the International Space Station (ISS) in 2008, will be equipped with a proximity focusing Ring Imaging CHerenkov detector (RICH). This detector will be equipped with a dual radiator (aerogel+NaF), a lateral conical mirror and a detection plane made of 680 photomultipliers and light-guides, enabling measurements of particle electric charge and velocity. A likelihood method for the Cherenkov angle reconstruction was applied leading to a velocity determination for protons with a resolution around 0.1%. The electric charge reconstruction is based on the counting of the number of photoelectrons and on an overall efficiency estimation on an event-by-event basis. Results from the application of both methods are presented. Comment: 5 pages, 3 figures. Contribution to the 5th International Workshop New Worlds in Astroparticle Physics (Faro, Portugal 2005). Presenter: Luisa Arruda |
| Databáze: | arXiv |
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