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    User name Solvigno

    Log entry time 00:10:25 on March 5,2007

    Entry number 194753

    keyword=Shift summary

    16:00 beam tuning to get energy spread close to 2.5E-5 and vertical size of the beam spot under 100um.

    22:12 beam conditions are acceptable. Move the target to carbon.

    22:15 ask for 5uA with raster on at 9x11 --> 4x0.8
    ask for 5uA with raster on at 9x25 --> 4x1
    22:30 call MCC to tell them about our raster size situation.
    They are now downloading the raster parameters for this energy.
    22:34 redo 5uA and 9x11 --> 8x1.5
    now 5uA and 5x14.6 --> 5x1.8 (14.6 is the max they can have).
    22:40 The optics expert is looking into the problem. The problem is
    that to optimizing the beam spot size under 100um in y, the 6 quads after the raster had to be turned on. But to get to the raster 4x6 at the target, Jay Benesch informed us that they need to turn off a quad. This implies a vertical beam spot size of about 150um. After talking with the run coordinator, it was decided to accept the beam with a 150um vertical size.
    23:18 now at 5uA. MCC is set at 9x11. We get 4x5.5.
    Ask 9x12 and get 4x6 at the target.

    23:20 Now moving on to delta scan internal sieve out.

    23:31-23:39 --> run# 1134: delta=0%, 5uA, raster on, DT=16%, 1M events.


    23:39 ask for raster off

    23:45 Raster is off. Took harp scan: vertical width=265um.

    23:49-00:02 --> run# 1135: delta=0%, 5uA, raster off, DT=16%, 1M events.

    00:02 Left magnets cycled to go to +4%.