For the International Large Detector concept at the planned International Linear Collider, the use of time projection chambers (TPC) with micro-pattern gas detector readout as the main tracking detector is investigated. In this paper, results from a prototype TPC, placed in a 1. T solenoidal field and read out with three independent Gas Electron Multiplier (GEM) based readout modules, are reported. The TPC was exposed to a 6. GeV electron beam at the DESY II synchrotron. The efficiency for reconstructing hits, the measurement of the drift velocity, the space point resolution and the control of field inhomogeneities are presented.

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Keywords Gas electron multipliers (GEM), International Large Detector (ILD), International Linear Collider (ILC), Micropattern gaseous detectors (MPGD), Time projection chambers (TPC)
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Journal Nuclear Inst. and Methods in Physics Research, A
Attié, D. (David), Behnke, T. (Ties), Bellerive, A, Bezshyyko, O. (Oleg), Bhattacharya, D.S. (Deb Sankar), Bhattacharya, P. (Purba), … Zhang, F. (Fan). (2017). A time projection chamber with GEM-based readout. Nuclear Inst. and Methods in Physics Research, A, 856, 109–118. doi:10.1016/j.nima.2016.11.002