TRACK STUBS


Below is a plot showing track candidates.
We had two silicon strip detectors in the beam, one several cm downstream of the other. Thus if you see a signal in one detector, a signal in the corresponding channel of the other detector should be seen.
Loop over good channels in detector 1; if the signal exceeds a threshold value, loop over channels in detector 2, and make an entry in the plot if the signal in detector 2 exceeds the same threshold.
A diagonal can be seen. Te fact that it does not go through (0,0) means that the detectors were not perfectly aligned. They were offset by approximately 7 channels or 1.4 mm.