Fast Drift CRID with GEM

The only available technique at the present time, to perform particle identification up to 40–50 GeV/c in a 4π solenoidal geometry using the Cherenkov ring imaging method is the use of gaseous detectors filled with either TMAE or TEA photocathodes, and a combination of the gaseous, and solid or liquid radiators. If one would consider building such a device, one may want to investigate alternative methods of building a single-electron detector. This paper investigates the feasibility of using the GEM together with a simple MWPC detector employing 33 μm diameter carbon wires to obtain a second coordinate. The results are compared to the CRID single-electron detector.