Light multi-GEM detector for high-resolution tracking systems
A. Bondar, A. Buzulutskov, R. de Oliveira, L. Ropelewski, F. Sauli, L. Shekhtman
Abstract
Controlled etching of copper electrodes in Gas Electron Multiplier foils allows a reduction of the material budget by more than a factor of two for a triple-GEM detector. Detectors making use of thinned foils provide performances similar to those obtained with standard devices: a gain above 104 for a double-GEM, with energy resolution of 27 % fwhm for 5.9 keV X-rays.
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