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    User name efuchey

    Log entry time 08:09:25 on October17,2010

    Entry number 335305

    keyword=10/17/10 Owl Shift summary

    Shift summary for October 17 2010 Owl:

    Shift Crew:
    SL: Eric FUCHEY
    TO: Diancheng Wang
    3rd: not filled

    Status at 12:00 am: Hall in controlled access, DVCS DAQ experts downstairs.

    12:45am: Beam recovery procedure started.
    1:04AM: Started the harp scan 4.5 uA on BeO
    1:12am: MCC redoes the harpscan moving the beam.
    1:20am: Dipole crashed somewhere in our beamline, MCC reset it and send tune beam.
    1:25am: Another harpscan started, with 10uA on empty target.
    1:45am: sent 4.5 uA on 15 cm LH2 target. After checking rates, we set the prescaler PS3 to 60.
    1:50am: starting boiling test "production", 4.5 uA, no raster.
    2:04am: having a glance at rates with carbon target, we decided to set the prescaler PS3 at 6
    BTW, we further ajusted the prescaler (see runlist below)
    2:20am: starting boiling test "production", 4.5 uA, 5.5x4 raster.
    2:50am: decided to modify the run plan to avoid continuous target changes which are waste of time.
    Doing all runs with carbon, and then, all runs with LH2
    5:00am: start data taking with LH2.
    6:20am: Finished Boiling test run plan. Alex has been paged (?). Waiting for him. Also, MCC has been asked not to deliver beam till further instruction, to avoid useless amount of radiation in the hall.

    7:30am: Resuming beam taking, Calorimeter HV switched on, PS5 set to 1 (and PS3 to 0), taking elastic run data.
    ~8:00am: Alex asked for an escorted access to change spectrometer settings

    Runlist:
    7345: 10 uA; Empty; raster 5.5x4; PS8 = 1; spot++
    7436: 4.5 uA; LH2 15cm; no raster; PS3 = 1; rates check.
    7437: 4.5 uA; LH2 15cm; no raster; PS3 = 60; Boiling test production.
    7438: 4.5 uA; Carbon; no raster; PS3 = 60; Rates check.
    7439: 4.5 uA; Carbon; no raster; PS3 = 6; Boiling test production.
    7440: 4.5 uA; LH2 15cm; 5.5x4 raster; PS3 = 60; Boiling test production.
    7441: 4.5 uA; Carbon; 5.5x4 raster; PS3 = 6; Boiling test production.
    7442: 4.5 uA; Carbon; 2.75x2 raster; PS3 = 6; Boiling test production.
    7443: 3.0 uA; Carbon; no raster; PS3 = 6; Boiling test production.
    7444: 3.0 uA; Carbon; 5.5x4 raster; PS3 = 6; Boiling test production.
    7445: 3.0 uA; Carbon; 2.75x2 raster; PS3 = 6; Boiling test production.
    7446: 1.5 uA; Carbon; no raster; PS3 = 3; Boiling test production.
    7447: Junk -> CODA crashed
    7448: 1.5 uA; Carbon; 5.5x4 raster; PS3 = 3; Boiling test production.
    7449: 1.5 uA; Carbon; 2.75x2 raster; PS3 = 3; Boiling test production.

    7450: Junk -> started / stopped
    7451: 4.5 uA; LH2 15cm; 2.75x2 raster; PS3 = 60; Boiling test production.
    7452: 3.0 uA; LH2 15cm; no raster; PS3 = 60; Boiling test production.
    7453: 3.0 uA; LH2 15cm; 5.5x4 raster; PS3 = 40; Boiling test production.
    7454: 3.0 uA; LH2 15cm; 2.75x2 raster; PS3 = 40; Boiling test production.
    7455: 1.5 uA; LH2 15cm; no raster; PS3 = 20; Boiling test production.
    7456: 1.5 uA; LH2 15cm; 5.5x4 raster; PS3 = 20; Boiling test production.
    7457: 1.5 uA; LH2 15cm; 2.75x2 raster; PS3 = 20; Boiling test production.

    7458: Junk -> started / stopped