  The Collider Detector at Fermilab (CDF) is a general-purpose experimental
apparatus with an inner tracking detector for measuring charged particles,
surrounded by a calorimeter for measurements of electromagnetic and hadronic
showers, and a muon detector system. We present a technique for, and results
of, a precise relative alignment of the drift chamber wires of the CDF tracker.
This alignment has been an important component of the track momentum
calibration, which is the basis for the charged-lepton calibration for the
measurement of the W boson mass at CDF.
