Design, Construction, Operation and Performance of a Hadron Blind   Detector for the PHENIX Experiment
  A Hadron Blind Detector (HBD) has been developed, constructed and successfully operated within the PHENIX detector at RHIC. The HBD is a Cherenkov detector operated with pure CF4. It has a 50 cm long radiator directly coupled in a window- less configuration to a readout element consisting of a triple GEM stack, with a CsI photocathode evaporated on the top surface of the top GEM and pad readout at the bottom of the stack. This paper gives a comprehensive account of the construction, operation and in-beam performance of the detector. 
W. Anderson, B. Azmoun, A. Cherlin, C.Y. Chi, Z. Citron, M. Connors,   A. Dubey, J.M. Durham, Z. Fraenkel, T. Hemmick, J. Ka...
physics.ins-det hep-ex nucl-ex