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    User name sawatzky

    Log entry time 00:13:38 on January10,2005

    Entry number 138789

    keyword=Shift summary

    SL: Brad Sawatzky
    TO: Brendan
    3rd: Ran

    Target: LD2 4cm
    Dipole field setting: 1.152
    Spectrometer angle: 21.0

    16:09-16:27 Run 1605 256K
    16:27-16:39 Run 1606 150K
    -- Ended early: TS2 failed to report, 'End Run' failed so had to do a 'Reset' from the CODA control panel to stop run)
    -- Tried restarting CODA, Configure was OK but download failed.
    -- Ran restarted TS2 via MEDM control.

    16:48 Called MCC to request Controlled Access for some planned work
    -- Olivier and Steve shifted the BB TDC gates 20ns earlier and the BB ADC gates 40 ns earlier.
    -- Ran worked with the FB ADCs (test runs: 1607-1614)

    17:55 Requested beam at 3.5uA

    Target: LD2 4cm
    Dipole field setting: 1.152
    Spectrometer angle: 21.0
    (same as before the access)

    18:16-18:31 Run 1615 ~197K
    -- TS1 in "state disconnected" for last 3minutes of run
    -- Rebooted TS1 (18:32)

    18:34-18:48 Run 1616 251K
    18:49-18:58 Run 1617 JUNK (beam tripped near start of run and didn't return.)

    Beam down from 18:50-19:30 due to zone 21 cavity 6 problem

    19:30-19:46 Run 1618 251K

    19:47 Switch to DD2 kinematics
    -- Momentum setting changed to 1.13303 GeV
    -- Angle set to 25.0

    19:58 Asked for 3.5uA

    18:03-20:27 Run 1619 165K (stopped early, prescale too large for new kinematics, event rate unnecessarily low)

    20:27 Changed prescale for T3 (ps3) to 20 (was 100)

    20:28-20:40 Run 1620 251K
    20:41-20:57 Run 1621 251K

    20:59 Switch to DD3 kinematics
    -- Momentum setting changed to 1.11175 GeV
    -- Angle set to 29.0

    21:15 Asked for 3.5uA

    21:18-21:24 Run 1622 (short to check rates for prescale setting)

    21:25 Changed prescale for T3 (ps3) to 4 (was 20)

    21:26-21:37 Run 1623 40K (beam trip a few minutes in, still working on it, stopped run early)

    21:29-21:49 Beam trip -- something to do with Hall B(?)

    21:49-22:01 Run 1624 251K
    22:20-22:14 Run 1625 251K
    22:16-22:31 Run 1626 251K

    22:35 Switch to A1 kinematics
    -- Target: slanted Carbon
    -- Cycled Quads
    -- Momentum setting changed to 1.1374 GeV
    -- Angle set to 17.0
    -- prescales changed to:
    T3 (ps3): 30 (was 4)
    T6 (ps6): 1800 (was 500)

    23:00 Requested 3.5 uA

    23:01 Run 1627 JUNK (bogus prescales)
    23:02-23:13 Run 1628 251K

    Changed T3 (ps3) to 99999 (was 30) to take T6 singles only
    Changed T6 (ps6) to 300 (was 1800) to take T6 events at 300 Hz

    23:15-23:31 Run 1629 251K (T6 only)
    23:32-23:46 Run 1630 251K (T6 only)

    23:49 Changed to LH2 4cm target

    23:55 Requested 3.5 uA

    Changed T3 (ps3) to 160
    Changed T6 (ps6) to 400

    00:01 Run 1631 JUNK
    00:02 Run 1632 JUNK

    Problems starting CODA
    -- rcServer connection problem that persisted across CODA resets
    -- did a 'startcoda' from a term window to start from scratch