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    User name Paschke/Solvignon

    Log entry time 08:05:53 on April23,2003

    Entry number 98260

    keyword=Shift summary


    Run 1210/2210 longC, 1uA, raster off, correct sieve position
    Run 1211/2211 Empty target, 1uA, raster off
    Run 1212/2212 Multifoil C, 1uA, raster off
    Run 1213/2213 Multifoil C, 1uA, raster off, Beam offset in x
    Run 1214/2214 Single-foil C target, 1uA, raster off, Beam moving in x
    Run 1215/2215 Single-foil C target, 1 uA, raster off, Beam offset in x
    Run 1216/2216 Empty target, 1uA, raster off, beam offset in x
    Run 1217/2217 Empty target, 1uA, raster off, beam x offset, Septum I=117.0
    Run 1218/2218 Single-foil target, 1uA, beam x offset
    Run 1219/2219 Single-foil target, 1uA, beam x offset, Septum I=126.5
    Run 1222/2222 Single-foil target, 1uA, beam x offset, Septum I=114.0

    Run 1227 Junk. Single-foil, 1uA, +4%, T1 prescale=10 (41k). (Septum misset to P0=1.473)
    Run 1228 Junk. Single-foil, 1uA, +4% (Septum misset to P0=1.473)
    Runs 1229,1230 Single-foil, 1uA, +4% (Septum correctly set to P0=1.1932), raster off
    Runs 1231,1232 Single-foil, 1uA, +4% (Septum correctly set to P0=1.1932), raster on


    00:20 asked for controlled access to investigate sieve slit position.
    01:15 Everyone is out of the Hall. The sieve is now correctly positioned in the 6 degree position.
    01:23 Beam is returning for optics studies (1uA)
    01:35 Beam stopped for 5 minutes to move to empty target
    01:55 Beam stopped for 5 minutes to move to multifoil optics
    02:20 asked MCC for movement on bpm4B to observe rate changes
    02:33 started runs 1213/2213 with beam moved to
    (-0.3,-0.24) bpm4A, (-2.0,-.29) bpm4B.
    02:40 beam stopped for 5 minutes to move to single-foil optics target
    02:57 beam stopped for 5 minutes to move to Empty Target
    03:15 Septum current raised 10% to 117.0 A (from 108 A)
    03:18 beam stopped for 5 minutes to move to single-foil optics target
    03:45 Septum current raised to 126.5 A
    04:15 Septum current lowered to 114 A
    05:00 Took series of junk runs to check raster size with MCC value,
    Checked RightArm trigger rate with raster on/off for x offset =0/ =-2.
    Decided it was reasonable to run centered, lower rate at x=-2 probably
    does not indicate a problem.
    05:20 started Q2/Q3 cycle on RHRS in preparation for delta scan.
    06:04 starting delta scan. beam roughly centered, with bpm4A(0.10,-0.27),
    bpm4B (-0.2,-0.33)
    06:25 ok, so, we forgot to change the septum setpoint for the first delta
    scan point. Changing setpoint I=103.196 (P0=1.1932, Current readback= 119.0)