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    User name V. Sulkosky

    Log entry time 00:03:16 on February 23, 2011

    Entry number 348180

    keyword=Swing Shift Summary Feb. 22, 2011

    February 22, 2011
    SL: Vincent Sulkosky
    TO: V. Bellini
    3rd: F. Garibaldi

    Swing Shift Summary:
    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    Plan: HRS Optics and then Production
    Kinematic settings:
         energy = 3.355 GeV
         left HRS P0 = 0.625 GeV/c
         left HRS angle = 68 degs
         right HRS P0 = 3.14 GeV/c
         right angle = -16 degs
         right sieve: IN

    16:00 Begin Shift waiting for beam due to 2k cold box trip; @ 15:34 2nd 2K cold box trip off
    18:10 Work in Hall A completed.
    18:20 Asked for Beam permit. No time estimate on beam though.
    18:25 Hall A in Power permit.
    18:30 Target restored to operating conditions, but LD2 limited to 100 W of power for now until CHL is back on its feet.
    20:20 ESR Cryo supply temperature increased to 17 K. Target is slowly warming up.
    20:41 MCC is ready to restore beam to the Hall.
    20:50 Talked with Hall C crew, they are in the middle of their target cool down, which started around the time our flow started to drop.
    21:55 MCC is going to send tune beam.
    22:07 Ask MCC to adjust beam positions at 1H04A to (-1.5,0), positions at 1H04B look fine (-3.5,2).
    22:20 Ask MCC to mask target and move to BeO for spot++ check.
    22:24 BeO target in place, asked for 5 uA of beam.
    22:42 Ask for 20 uA on BeO. Raser on.
    22:49 Ask MCC to turn Raster off.
    23:01 Ask to mask target and move to Al dummy 4 cm.
    23:41 Ask to mask target and move to Al dummy 15 cm.
    23:44 Al dummy 15 cm in place.


    Run Summary:
     Run #   Events   CODA Rate [Hz]   T5 Rate [Hz]   Time [mins]   Average Beam Current    Deadtime [%]   Target   Comments 
    1726 147 k 181 6.3 14.5 0.0 uA 15 Empty Cosmics
    1727 27.7 k 102.3 6.3 5.0 0.0 uA 8.5 Empty Pedestal T8
    1728 16.4 k N/A N/A N/A 0.0 uA N/A Empty pedrun
    1729 110 k 29.5 6.3 66.9 0.0 uA 6.6 Empty Cosmics
    1730 244 k 40 6.3 88 0.0 uA 7.0 Empty Cosmics
    1731 24.6 k 100 6.3 3.2 5.3 uA 17.8 Empty Raster Check
    1732 17.1 k -- 6.3 2.1 5.3 uA 31.0 Empty Raster Check
    1733 227 k -- 6.3 3.3 5.3 uA 42.0 BeO Raster Check (6x4)
    1734 139 k -- 6.3 3.7 5.3 uA 43.3 BeO Raster Check (8x6)
    1735 37.7 k -- 6.4 5.5 19.1 uA 12.7 BeO Optics Raster on
    1736 53.5 k 138 6.4 6.9 21.0 uA 8.7 BeO Optics Raster off
    1737 288 k 248 6.5 21 20.8 uA 5.8 Al 4 cm Optics Raster on
    1738 38 k 70 6.5 9.7 21 uA 9.5 Al 4 cm Optics Raster on; increased ps3
    1739 k 118 6.5 21 uA 5.7 Al 15 cm Optics Raster on