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.