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    User name jpchen

    Log entry time 02:07:08 on November14,2007

    Entry number 214349

    keyword=Pb target information

    I talked to Dave Meekins today about the Pb target in loop3. According to Dave, this one is ~100 mg/cm^2 (the information in Dave's table was incorrect). Dave has no picture, here is his discription: The frame holding the Pb target was on top/bottom, no side frame. The Pb foil horizontal size is about 1", tilted 50 degree.
    With this information, it is likely that Pb target may be not centered
    in horizontal direction such that with beam at x=+2, it missed
    the Pb target.
    We plan to do another Pb target position scan with smaller raster size to get a more accurate picture.