Author/Authors :
Simon، نويسنده , , F. and Kelsey، نويسنده , , J. and Kohl، نويسنده , , M. and Majka، نويسنده , , R. and Plesko، نويسنده , , M. and Sakuma، نويسنده , , T. I. Smirnov، نويسنده , , N. and Spinka، نويسنده , , H. and Surrow، نويسنده , , B. and Underwood، نويسنده , , D.، نويسنده ,
Abstract :
Three Gas-Electron-Multiplier (GEM) tracking detectors with an active area of 10 cm × 10 cm and a two-dimensional, laser-etched orthogonal strip readout have been tested extensively in particle beams at the Meson Test Beam Facility at Fermilab. These detectors used GEM foils produced by Tech-Etch, Inc. They showed an efficiency in excess of 95% and spatial resolution better than 70 μ m . The influence of the angle of incidence of particles on efficiency and spatial resolution was studied in detail.
