• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name Vignote

    Log entry time 16:05:16 on March18,2007

    Entry number 196452

    keyword=day shift summary

    Day Shift Summary

    08:00-08:47 kin03, Pb#3, ~40uA, runs 1684,1685 , Total C: 1.834 C
    08:47 Ask MCC to go to 20uA
    08:48-08:58 kin03, Pb#3, ~20uA, run 1686, Total: 1.846 C
    08:58 Ask MCC to go to 10uA
    08:59-09:09 kin03, Pb#3, ~10uA, run 1687, Total: 1.852 C
    9:12 Target to empty
    9:15 Ask MCC to perform a harp scan
    9:20-9:55 Move the R-spectrometer to 77.3 degrees
    9:55 Konrad Aniol phones asking to enable alarm ~adaq/enable_alarms
    10:00 Found harpscan results strange (error bar in y one order of magnitude bigger than central value). Ask for a new one with C target on because we had already changed to it.
    10:02 MCC phones telling us that we have to wait a few minutes for the new harp scan because there are some problems with the beam in Hall B.
    10:05 Bob Michaels phones and tests the alarm.
    10:30 Harp scan result too high in sigma_y (less .214mm). Ask MCC to tune it.
    11:10 Finally harp scan looks OK. sigma_y = .1278mm. It is higher than .1mm but Konrad Aniol told us that it was OK for this kinematics.
    11:10-11:25 Unstable beam current. Start run on C anyway.
    11:30 MCC phones telling that there will be not beam for a while. Stop run 1688 on C.
    11:45 New phone call from MCC. There will be no beam for at least 30 minutes.
    12:45 MCC phones telling that they are trying to solve the problems with the beam.
    13:30 Bob Michaels cames to work with the alarm signals.
    13:30 Start Run 1689 on C under very unstable beam conditions.
    14:30 Beam is not working yet. Run coordinator informed.
    14:50 Appearently beam is a bit more stable. Run 1690 on C started.
    15:00 MCC phones and tell that from now beam will be more stable.
    15:27 kin08, C#2, ~40uA (a bit unstable), run 1690 end , Total C = 0.05 C
    15:28-15:58 kin08, C#2, ~40uA, run 1691