E. Evrard
NATO
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Nuclear Physics B - Proceedings Supplements | 1990
G. Bertrand-Coremans; A. De Roeck; J.P. Dewulf; E. Evrard; Ph. Huet; D. Johnson; P. Marage; J. Moreels; R. Roosen; G. Van Beek
Abstract A set of two cylindrical multiwire proportional chambers, 2.2 meter long and 1 meter in diameter, are being built as part of the central tracking detector of the H1 experiment, at HERA. The chamber bodies are of sandwich type; the cathodes are segmented in pads. The transmission line, which is part of the sandwich, has an impedance matched to the preamplifiers. The electronic readout has been tested on a flat prototype chamber; the time resolution is well below the 96 ns bunch crossing time at HERA.
