A Prototype RICH Detector Using Multi-Anode Photo Multiplier Tubes and   Hybrid Photo-Diodes
  The performance of a prototype Ring Imaging Cherenkov Detector is studied using a charged particle beam. The detector performance, using CF4 and air as radiators, is described. Cherenkov angle precision and photoelectron yield using hybrid photo-diodes and multi-anode PMTs agree with simulations and are assessed in terms of the requirements of the LHCb experiment. 
E. Albrecht (2), G. Barber (4), J.H. Bibby (5), N.H. Brook (3), G.   Doucas(5), A. Duane(4), S. Easo(3), L. Eklund(2), M. Fr...