München 2009 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 54: Spurkammern 3
T 54.4: Vortrag
Freitag, 13. März 2009, 14:45–15:00, A014
Development of a GEM-based high rate TPC — •Felix Böhmer, Christian Höppner, Bernhard Ketzer, Igor Konorov, Alexander Mann, Sebastian Neubert, Stefan Paul, Maxence vandenBroucke, Quirin Weitzel, Lisa Wörner, and Xiaodong Zhang — Technische Universität München, Physik Department E18, 85748 Garching, Germany
A TPC with GEM foil amplification is considered as the central tracker of the PANDA experiment, which is currently being planned at the new accelerator complex FAIR at Darmstadt. The central tracker has to measure particle trajectories over a wide momentum range (0.1 - 8 GeV/c) from up to 2 · 107 antiproton-proton annihilations per second from a continuous beam. A small prototype of this GEM-TPC (diameter 200mm, drift length 77mm) has been built and installed into an electron-beam at the ELSA accelerator facility in Bonn.
Simulations of the detector performance based on full digitization have been performed and results such as momentum resolution, spacecharge buildup and event deconvolution performance will be presented in this talk. Also, tuning of the simulations based on the results gathered from the GEM-TPC prototype will be discussed.
This work is supported by the 6th Framework Program of the EU (contracts No. RII3-CT-2004-506078 and 515873-DS), the German Bundesministerium für Bildung und Forschung (06MT245I), the Cluster of Excellence for Fundamental Physics (EXC153), and the Maier - Leibnitz-Labor der LMU und TU München.