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Muon Spectrometers

The two forward spectrometers use radial magnetic fields. Each contain a Muon Tracker (MuTr) followed by a Muon Identifier (MuID), both with full azimuthal coverage. The Muon Trackers consist of multi-plane cathode strip chambers for tracking. The muon identifiers are composed of alternating layers of steel absorbers and low resolution tracking layers of streamer tubes. This combination provides a discrimination of pions, since they are stopped in the steel absorbers.



Henrik Tydesjo 2003-02-24