• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name R. Michaels

    Log entry time 06:51:07 on January12,2003

    Entry number 91559

    keyword=halog scaler oddities fixed

    Looking through the halog end-run at scalers I noticed a couple oddities.
    E.g. for run 20292 the livetime for helicity 0 was "148%". And for run 1292
    the livetime for +/- helicity livetime was much less than for 0 helicity.

    Reason was that T9 must be counted for helicity 0 but not for +/- since
    T9 arrives during the blank-off period between helicities. Left and right arm
    halog summary software had different bugs (Left ignored T9, Right added
    them erroneously to +/- helicity). I have fixed the scripts.

    One might notice the number of events for + and - helicity don't add
    to 0 helicity. This is again due to T9. It is ok