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    User name A. Camsonne

    Log entry time 18:00:44 on March 1,2006

    Entry number 164669

    keyword=HV tuned from run 2477 and issues to be fixed / looked at next access

    Pavel analyzed completly cosmics run 2477, I ran the HV tune program to balance the gain, new HV settings are NA_dv_38.set

    Few issues which have to be look at at the next access :

    Few TDC problems still remain (see the 'Single' plots):
    a) channels v1-(34 through 48)-R: TDC threshold should be made higher ~3 times.
    b) channel s1-10-R TDC is not present
    c) channels v2-(17 through 32)-R: TDC threshold should be lowered by ~70-80 ADC channels
    d) channel v2-01-L: TDC threshold should be lowered by ~120-130 ADC channels
    e) channels n1-04-L and n4-08-R have suspiciously low TDC thresholds, may be they can be fixed