• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT
    Make New Entry, Make Followup Entry

    User name V. Sulkosky

    Log entry time 12:34:54 on February 09, 2009

    Entry number 260019

    keyword=Helicity from HRS

    Figure 1 shows the two copies of the helicity plugged into two separate ADC
    channels in ROC 4. I also plotted the MPG gate. The helicity low and
    high signals are well separated in ADC channels, so this is not the problem
    with the ADC helicity. The two ADC copies are also well correlated with
    each other.

    The second figure shows the comparison between ADC helicity and the TIR
    helicity from the TS. Run 1184 was a test run from this morning taking
    during the Moller measurement. The two helicities disagree about 50% of
    the time. For run 20125, the last HRS only run taken yesterday shows what
    we normally see that the ADC and TIR agree with a less than 0.2%

    The copy of the helicity plugged into BigBite ADCs agrees with the TIR
    from the left HRS TS.

    A copy of this log entry has been emailed to: rom,brads,moffit,kalyan

    Helicity Comparison from ADCs on Left HRS

    Left HRS Helicity Comparison TIR and ADC