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    User name R. Michaels

    Log entry time 03:45:21 on July16,2005

    Entry number 148174

    keyword=cavity checks

    Now we do a series of short runs with different currents
    and different positions to check cavities. Someone (Lindsay?)
    may analyze the HAPPEX data in the morning. I spot-checked
    and found that bpm3x was close to saturation, the other signals
    were ok.

    I analyzed the spectr. data, and some signals moved in a sensible
    way, though they seemed noisy, but other signals were saturated.

    We'll need to adjust gains with the slider GUI, but this GUI is
    not working: blank EPICS screen, we don't know how to reset it.
    Apparently MCC didn't either and we didn't want to wake up Musson.

    I suppose these data can serve as our "bulls-eye scan" for
    the striplines too.

    Target: BeO. Q is in microAmps, X & Y in mm.

    HAPPEX Run .... Spectr. Run .... Q .... X .... Y

    3625 ........... 2060 .......... 5.2 .. 0.84 ... 0.5
    Keep X,Y about the same, vary Q:
    3626 ........... 2061 .......... 2.1 .. 0.81 ... 0.65

    3627 ........... 2062 .......... 7.2 ... ~same

    Go back to 5 uA. Now we move X
    3628 ........... 2063 ........... 5.0 ... 2.1 ,... 0.5

    3629 ........... 2064 ........... 5.0 ... -2.0 ...... 0.5

    Go back to X = 0. Now we move Y
    3630 ........... 2065 ........... 5.0 .... 0 ..... +2
    3631 ........... 2066 ........... 5.0 .... 0 ..... -2

    Move X & Y together
    3632 ........... 2067 ............ 5.0 ... -2 .... -2
    3633 ........... 2068 ............ 5.0 ... +2 .... +2

    Test completed. However, I think we'll need to revisit this
    because of the gain issue and because Musson wants to fine-tune
    the zero crossing.