R&d on the Gem Readout of the Tesla Tpc
نویسنده
چکیده
Studies for the TESLA TPC (Time Projection Chamber) with GEM (Gas Electron Multiplier) readout at DESY/Hamburg University are presented. Two test chamber setups are being operated. The studies include basic GEM performance, tracking and the determination of the resolution using different pad sizes and geometries. Our measurements show that chevron shaped pads lead to a better point resolution compared to rectangles. A second focus of our R&D activities is the measurement of the ion feedback. It is determined to be in the order of a few percent using a double GEM structure.
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