Cherenkov rings from aerogel detected by four large-area hybrid photodiodes

We report on the results obtained using thick samples of silica aerogel as radiators for a Ring Imaging Cherenkov counter. Four large-diameter hybrid photodiodes with 2048 channels have been used as photon detectors. Pions and protons with momenta ranging from 6 to 10 GeV/c were separated and identi...

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Detalles Bibliográficos
Autores principales: Bellunato, T F, Braem, André, Buzykaev, A R, Calvi, M, Chesi, Enrico Guido, Danilyuk, A F, Easo, S, Jolly, S, Joram, C, Kravchenko, E A, Liko, D, Matteuzzi, C, Musy, M, Negri, P, Neufeld, N, Onuchin, A P, Séguinot, Jacques, Wotton, S
Lenguaje:eng
Publicado: 2003
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/S0168-9002(03)00780-0
http://cds.cern.ch/record/643242
Descripción
Sumario:We report on the results obtained using thick samples of silica aerogel as radiators for a Ring Imaging Cherenkov counter. Four large-diameter hybrid photodiodes with 2048 channels have been used as photon detectors. Pions and protons with momenta ranging from 6 to 10 GeV/c were separated and identified. The number of photoelectrons and the radius of the Cherenkov rings together with the Cherenkov angle resolution were measured. A comparison with a simulation program based on GEANT4 is discussed.

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