• Main INDEX
  • Monthly INDEX
  • PREV
  • NEXT

    User name G.M. Urciuoli

    Log entry time 16:04:32 on December 3,2006

    Entry number 189919

    keyword=12/3/2006 Day shift report



    8:00 Shift starts

    Shift Crew:

    SL G.M. Urciuoli
    TO Piotr Decowski

    8:19 run 1257 ends, Number of Events: 1.35 M (H2 target).

    8:20 we asked for a controlled access (Right-HRS Boogies probelms)

    9:40 Problems solved. We ask for beam again

    9:45 Problem again with Right boogies

    11:05 Problem with right boogies solved tank to a shutdown and a complete resetting of hacsbc2 computer

    Kinematics 9:
    Beam Energy: 3.307 GeV
    Electron momentum: 2.510 GeV
    Electron angle: 24.50 deg
    Recoil momentum: 1.456 GeV
    Recoil angle: 46.61 deg

    Beam Current 8.6 uA

    Run 1258 Hydrogen Target PS1=2, PS2=500, PS3=2, PS4=40, PS5=1.
    Start 11:13 Stop 11:16 1 Number of events 95 K

    Run 1259, Hydrogen Target, PS unchanged
    Start 11:17 Stop 11:27 726 K
    Run stopped because a too high deadtime (approximately 20%).

    Beam current 7 uA

    Run 1260 junk
    Run 1261 junk

    Beam curren 8 uA

    Run 1262, Hydrogen Target. PS1=20, PS2=500, PS3=20, PS4=40, PS5=1
    Start 11:37 Stop 12:07, Number of Events = 954 K

    Run 1263, Dummy target, PS unchangeed
    Start 12:15 Stop 12:25, Number of Events 43 K

    Kinematics 10
    Beam Energy: 3.307 GeV
    Electron Momentum: 2.554 GeV
    Electron Angle: 23.60 deg
    Recoil Momentum: 1.494 GeV
    Recoil Angle 46.61 deg

    Run 1264 Dummy target PS unchanged
    Start 12:46 Stop 1256 Number odf events 50 K

    Run 1265 Hydrogen Target PS Unchanhed
    Start 13:02 Stop 13:05 Number of Events 83 K
    ATTENTION WRONG HEADER (it say Dummy target)

    Run 1266 Hydrogen Target, PS unchanged
    Start 13:06 13:46 Number of events = 956 K
    ATTENTION WRONG HEADER (it says Dummy target).

    Kinematics 11
    Beam Energy: 3.307 GeV
    Electron Momentum: 2.610 GeV
    Electron Angle: 22.44 deg
    Recoil Momentum: 1.336 GeV
    Recoil Angle: 48.09 deg

    Run 1267 junk

    Beam 6 uA

    Run 1268, Hydrogen Target PS1=20, PS2=400, PS3=40, PS4=30, PS5=1
    Start 14:08 Stop 14:10 Number of Events 84 K

    Run 1269, Hydrogen Target, PS unchanged
    Start 14:11 Stop 14:42 Number of Events 984 K

    Run 1270 Dummy Target, PS unchanged
    Start 14:48, Stop 15:01 Number of Events 51 K

    Kinematuics 12
    Beam Energy: 3.307 GeV
    Electron momentum: 2.656 GeV
    Electron angle: 21.50 deg
    Recoil momentum: 1.280 GeV
    Recoil angle: 49.34 deg

    15:20 MCC called; Beam down for transport issues
    15:32 Beam problems solved. However problems with the trigger downloading arise

    15:45 Trigger download problems solved

    Beam 5 uA

    run 1271 junk

    Run 1272 Dummy Target PS unchanged
    Start 15.51 Stop Number of events

    16:00 Shift ends