Optimization of the Readout Pad Geometry for a Gem-Based Time Projection Chamber
Abstract
In future time projection chamber (TPC) designs strong magnetic fields are foreseen to reduce transverse cluster sizes and thus improve transverse spatial resolution and double-track resolution. This implies a high granularity of the TPC readout - a feature, which is provided by micropattern TPC readouts based on the Gas Electron Multiplier (GEM). Besides numerous further advantages, GEM readouts feature narrow and direct electron collection signals and allow to take full advantage of small cluster sizes. In this paper we present the study on the pad geometry optimization for large-scale GEM-based TPCs with magnetic fields up to 5T. Measurements with six different pad geometries in a prototype-TPC are presented and the results are compared to Monte Carlo simulations.
- Publication:
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Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications
- Pub Date:
- April 2006
- DOI:
- 10.1142/9789812773678_0173
- Bibcode:
- 2006apsp.conf.1072K