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    User name eschulte

    Log entry time 00:04:41 on March13,2001

    Entry number 58630

    keyword=Transition-Swing Shift Summary

    16:00 Begin setup for sin21

    16:20 Angles on both spectrometers and the Left dipole set.
    16:42 HRSr field stabilised.

    16:50 Begin taking data on 15 cm dummy 6% radiator in 30 uA

    17:10 Remove radiator and reduce reduce current to 15 uA

    17: 30 Change to 15 cm LH2 target

    17:40 Request 30 uA

    17:45 Doug requests beam for a test of OTR.

    17:57 Beam returned.

    18:08 Request radiator in--6%

    18:10 Begin radiator in running for sing21

    18:40 End E94-104 and call MCC for a Controlled Access. Begin setup for
    E89-108

    #####

    18:45 Begin transition to e98108.

    o called Ed Folts for spectrometer positioning
    o called Bob Michaels for DAQ switchover
    o called for controlled access sweep
    o started spectrometer angle changes
    o started spectrometer field changes
    - field in HRSr decreasing, no need to cycle quads
    - field in HRSl increasing, perform quad cycle

    19:02 HRSr is at 47.994 deg. Control of HRSl passed to Folts in the Hall.

    19:07 HRSl quad cycle complete. Now set to +1.9860 GeV/c.

    19:11 HRS2 have 6 msr collimators.

    19:17 HRSl magnets now set to p0 = +1.9860 GeV/c and stable.

    19:40 HRSl is at 12.473 deg.

    19:49 Hall returned to power permit then beam permit.

    19.57 HRSr dipole stabilised at -0.84600 GeV/c.

    Summary:

    HRSr at -47.994 deg and -0.84600 GeV/c after quad cycle
    HRSl at 12.473 deg and +1.98600 GeV/c

    20.02 BeO in. Visual check showed (1,3)

    20.10 Arc OTR is in (confirmed MCC). Target changed to carbon.
    Requested 5 uA. Raster off.

    20.22 Kaon trigger installed. Magsum sheet to halog.

    20.23 12C pointing check at 5 uA for 5 min.

    20.31 Change targets to the 9-foil optics stack. Purposely misteer beam to +2 mm at H04B.xpos. 5 uA for 15 minutes.

    20.45 Return beam to normal position. Put 15 cm lH2 into beam. Requested
    raster of 2 mm X 2 mm. Accept 25 uA and set prescales and check spot.

    21.20 Everything looks good. Request 75 uA (administrative limit).

    21.55 Good for 95 uA. Production! Run 2870 is the first "real" run.

    2870 21.43 22.36 751k
    2871 22.37 23.24 753k
    2872 23.24