Author/Authors :
Debbe، نويسنده , , R. and Jّrgensen، نويسنده , , C.E. and Olness، نويسنده , , J. and Yin، نويسنده , , Z.، نويسنده ,
Abstract :
A Ring Imaging Cherenkov detector built for the BRAHMS experiment at the Brookhaven RHIC is described. This detector has a high index of refraction gas radiator. Cherenkov light is focused on a photo-multiplier based photon detector with a large spherical mirror. The combination of momentum and ring radius measurement provides particle identification from 2.5 to 35 GeV/c for pions and kaons and well above 40 GeV/c for protons during runs that had the radiator index of refraction set at n - 1 = 1700 × 10 - 6 .
