Performance of the Forward Drift Chambers for the DO detector

The Forward Drift Chambers (FDCs) provided tracking in the forward region for the DOL experiment at Fermilab. Before being installed at DOL for the current Tevatron colliding beam run, these chambers were extensively tested in the Fermilab NW test beam, in beams of 10-150 GeV pions and electrons. The beam line was instrumented with proportional wire chambers to define the beam position, and with Cerenkov counters to select clean pions or electrons. Measurements included the position resolution, the hit finding efficiency, two-track resolution, and ionization measurement resolution. The tests have demonstrated that the chambers are able to perform the tasks for which they were designed.<
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