• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name mitchell

    Log entry time 13:24:34 on February22,2000

    Entry number 34491

    This entry is a followup to: 34475

    keyword=ep measurement - update

    Talked with Jacques Berthod about last ep measurement. He points out that
    the position senesitivity at 4.8 GeV is tremendous ~ 15 MeV /mm
    Therefore one cannot trust ep with no fast feedback. Hence the systematic errors on
    the 4.8 GeV ep are at least 3 MeV as I observed +- 0.1 to 0.2 mm drifts in
    beam position.