• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name R. Michaels

    Log entry time 14:36:20 on August 3,2001

    Entry number 68799

    This entry is a followup to: 68623

    keyword=Asym Gen Results and Time Asy

    Results of partial analysis of the run for the latest Asymmetry Generator
    test in g2n configuration with random helicity mode (which is how you are
    running now). The input asymmetry was kept at -830 ppm, as it was the
    smallest I could get from the generator. The negative sign is supressed.
    Parity DAQ...................Left Spectrometer.......................Right Spectrometer
    ..............................20 M Triggers.........Scalers........20 M Triggers.........Scalers
    849 +/- 3 ppm.......738.................833 +/- 26...........783.................824 +/- 24

    The time asymmetry for recent runs that ran at least 8 minutes (there were not
    many yet !) using the 1024 Hz clock and the 1 Mhz scaler looks good, generally
    less than 50 ppm. Quoted errors comes from observed fluctuations between runs:
    --------------- Time Asymmetries (PPM) --------------
    ........Left Spectrometer..........................Right Spectrometer
    ...1024 Hz clock..........1 Mhz................1024 Hz clock............1 Mhz
    A = 35 +/- 25 ppm....42 +/- 20............27 +/- 28................25 +/- 15