CsI-photocathode and RICH detector

The development of fast RICH detectors using solid photoconverters is reviewed in the context of basic research and applications to high-energy physics experiments. The novel layout of the CsI fast RICH and the associated technologies are discussed in view of design optimization. Experimental results are presented and discussed in relation to photoelectric yield, detector efficiency and stability, Cherenkov resolutions, background, ageing and pattern recognition.