The AMS-02 RICH Imager Prototype - In-Beam Tests with 20 GeV/c per Nucleon Ions -
M. Buenerd, P. Aguayo, M. Aguilar Benitez, L. Arruda, F. Barao, A. Barrau, B. Baret, E. Belmont, J. Berdugo, G. Boudoul, J. Borges, D. Casadei, J. Casaus, C. Delgado, C. Diaz, L. Derome, L. Eraud, L. Gallin-Martel, F. Giovacchini, P. Goncalves, E. Lanciotti, G. Laurenti, A. Malinine, C. Mana, J. Marin, G. Martinez, A. Menchaca-Rocha, C. Palomares, M. Pimenta, K. Protasov, E. Sanchez, E-S. Seo, I. Sevilla, A. Torrento, M. Vargas-Trevino
Abstract
A prototype of the AMS Cherenkov imager (RICH) has been tested at CERN by means of a low intensity 20 GeV/c per nucleon ion beam obtained by fragmentation of a primary beam of Pb ions. Data have been collected with a single beam setting, over the range of nuclear charges 2<Z<~45 in various beam conditions and using different radiators. The charge Z and velocity beta resolutions have been measured.
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