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

    User name A. Camsonne / P. Zhu

    Log entry time 01:41:37 on May 09, 2011

    Entry number 358678

    Followups:

    keyword=Setup for low current BCM test - Current in Hall A limited to 5 uA

    We unplugged the downstream BCM at the splitter level. The signal before
    the splitter was sent through a cable to the Happex DAQ with an amplifier
    inline. So effective signal will have +3 dB, we will try with the
    splitter after.
    The plan is to try to resume beam with empty target first when we manage
    to open the valves in the beamline and take a first set of currents to
    have a quick look at the BCM response.
    
    Once done we will try to put a target in to monitor the rates with the
    HRS but that might spoil the vacuum so we will see how it goes from there.
    


    A copy of this log entry has been emailed to: musson@jlab.org