Straw Chamber Tracking Efficiency

Straw Chamber Tracking Efficiency

September 27, 1996

The straw chamber tracking efficiency was measued with muon data at 1550 volts, 1600 volts and then at preliminary operating voltages which range from 1600 to 1625. A track is defined by hits in at least two of the three layers. The efficiency is unbiased and absolute. Tracks from the PWCs which could be extrapolated through the straws were used to as the denominator.

Much work is still required to complete the straw tracking package, but I beleive that I have shown that they will indeed work as a traking system operating in this voltage region.

Jon Link, link@ucdhep.ucdavis.edu