A test bench for the AMS-RICH photodetector modules

Abstract

The Alpha Magnetic Spectrometer experiment to be installed on the International Space Station will be equipped with a Proximity Focusing Ring Imaging Cerenkov detector for ion identification. A prototype (2nd generation) has been constructed, which performances have been evaluated both with Cosmic Ray particles and beam ions. A test bench (PMT and Front End Electronics selection) was developed for the testing of the photodetector modules of the flight model. It is described in this contribution.