5 MAR 1998 : FIRST COSMIC ON DRIFT CHAMBER
First data from the DC were recordered on the 5th of March. The chamber was rotated by 65 degrees and
two opposite sectors, each covering about 30 degrees, were instrumented (so that cosmics look almost
horizontal in the picture). Three pairs of scintillators were used to trigger the cosmics, which were
nicely reconstructed few days later, after the computation of the TDC offsets.