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    User name P. Solvignon

    Log entry time 07:49:23 on July21,2003

    Entry number 105769

    keyword=PID detectors calibration for right arm

    *** Cerenkov:

    I used the pedestal positions found from pedestal runs.
    Later I will try to deal with the mirrors that don't show
    a single electron peak.
    Anyway, the pedestals are lined up and cuts can be applied.


    **********************************************

    *** Total shower:

    I changed detmap_97110 for the preshower part.
    I used also the pedestal positions found from pedestal runs.
    For preshower adc#11, the pedestal is at channel 10 that is very low.
    If I leave it at this value, I got an uggly spectrum for preshower.cl_e.

    So after changing the pedestal positions in shower_calib.dat, I ran the
    shower calibration. E/P spectrum looks good (see picture).



    FIGURE 1