Particle identification with the fast COMPASS RICH-1 detector

摘要

A new photon detection system for the COMPASS RICH-1 detector has been designed and installed. In the central region, the project is based on multi-anode photo-multiplier technology accompanied by charge sensitive, high resolution and dead-time free time digitization. In the outer area, only the readout electronics for the existing photon detectors has been replaced. Details on the detector upgrade and its performance are presented.%CEA Saclay, DSM/DAPNIA Cif-sur-Yvette, France;INFN, Sezione di Torino and University of East Piemonte, Alessandria, Italy;Technische Universitat Miinchen, Physik Department, Garching, Germany;INFN, Sezione di Trieste, Trieste, Italy;LIP, Lisbon, Portugal;;