• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name R. Snyder

    Log entry time 09:28:08 on July11,2004

    Entry number 128225

    Followups:

    keyword=Beam burp cuts changed

    After starting run 2774, we noticed that the online gui wasn't updating, but the current was steady at 38 uA. After analyzing the data, we again saw very few entries in asymmetry plots, but many more in bcm vs ev_num plots.

    After paging Kent, he concluded it was the beam burp cuts applied to the noisy beam that resulted in so little data coming through.
    The beam burp cut was changed from 600 to 1000 ADC channels, the charge asymmetry cut was changed from 8500 to 14000 and the time cut out after beam burps was changed from 40 sec. to 1 sec.

    Now, more data is getting through and the online gui is updating.