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    User name mercado

    Log entry time 16:06:39 on August29,2009

    Entry number 286840

    keyword=Day Shift Summary


    Day Shift Summary

    ->8:46-12:29
    -Target is 25cm H. Beam current is 0.5uA. S0 HV and threshold scan. Raster at 2x2.5

    -Runs:
    L-HV R-HV threshold
    24594/4410 1650/1650 1650/1650 10
    24595/4411 same same 30
    24596/4412 same same 50
    24597/4413 1700/1700 1650/1650 10mV
    24598/4414 1675/1675 1725/1725 10
    24599/4415 1750/1750 1700/1700 10
    24600/4416 1775/1775 1725/1725 10
    24601/4417 1800/1800 1750/1750 10
    24602/4418 1600/1600 1550/1550 10
    24603/4419 1575/1575 1525/1525 10
    24604/4420 1550/1550 1500/1500 10
    24605 1700/1700 1650/1650 10
    24606/4421 1700/1700 1650/1650 10

    ->noon
    -Controlled access for alignment.

    ->1:27
    -Sweep in progress. Jack reports they will be done soon.

    ->1:54
    -FSD OK
    -Attempt to detune Q3 for Left Arm by 10% (from [1252.1736] to [1126.956]) -- Unsuccessful -- It goes back to the original value.

    ->2:03
    -Still in Controlled Access
    -Tune Left and Right Q3 to 1400.
    -Figured out how to tune the magnets. Q3 on both arms is now 10% less than before (1125.71 on Left Arm, 1122.70 in Right Arm)

    ->2:23
    -Hall is now empty. Power Permit. Masked target. Going to BeO.

    ->2:29
    -Beam Permit. Asked MCC for 5uA with 4.4x4 raster.

    ->2:34
    -Alarm goes off. Massive Temperature drop. Page Dave Meekins. Ask for target mask to go back to LH2. Asked for 10uA.

    ->2:52
    -VDCs off. Current is 20uA. Alarm goes off again.

    ->3:01
    -Current is ~10uA

    ->3:07
    -Current is ~5uA

    ->3:10
    -Dave Meekins shows up to fix the target problem. Says we might need access to fix.

    ->3:15
    -Controlled Access. Dave goes into hall.

    ->4:00
    -Dave is back from Hall. He says we can now run.