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    User name Nilanga

    Log entry time 23:28:30 on January17,2003

    Entry number 92310

    keyword=5 GeV 32 degree and 25 degree data

    I analyzed 40 min. worth of data from run 1401: 5 GeV, 32 degree data from HRS-R. This is our highest Q^2 setting. For this the separation of the electrons using cerenkov alone does not seem to be clean; tomorrow with more data we should establish a 2-D cut using lead glass and cerenkov. In the meantime I increased the Cerenkov cut to 500 chans. from 300.

    The rate seem to be very close to what we expected; about 0.3 Hz of electrons per spectrometer.

    I also checked the optics run 1398; it looks good too.

    The rate for the left arm setting (25 degrees) also look OK: about 2 Hz per spectrometer. At this rate the 25degree. 3.2 GeV setting will take about 55 hours of beam on the left arm.