Author/Authors :
Martinengo، نويسنده , , P. and Peskov، نويسنده , , V. and Breskin، نويسنده , , A. and Di Mauro، نويسنده , , A. and Mayani Paras، نويسنده , , D. and Molnar، نويسنده , , L. and Nappi، نويسنده , , E. and Paic، نويسنده , , G. and van Hoorne، نويسنده , , J.، نويسنده ,
Abstract :
The very high momentum particle identification detector proposed for the ALICE upgrade is a focusing RICH using a C4F10 gaseous radiator. For the detection of Cherenkov photons, one of the options currently under investigation is to use a CsI-coated triple thick GEM with metallic or resistive electrodes. We will present results from the laboratory studies as well as preliminary results of beam tests of a RICH detector prototype consisting of a CaF2 radiator coupled to a 10×10 cm2 CsI-coated triple thick GEM equipped with a pad readout and GASSIPLEX-based front-end electronics. With such a prototype the detection of Cherenkov photons simultaneously with minimum ionizing particles has been achieved for the first time in a stable operation mode.
Keywords :
rich , CsI photocathode , Micropattern gaseous detectors , Thick GEM
