User name johna
Log entry time 16:24:50 on April25,2007
Entry number 200019
keyword=Unsual spot++ result
spot++ results fo run 2796 (attached) looked odd. From looking at position vs. event number, it appears that the beam may have been drifting in y over the first 50k events, yielding an odd pattern in the BPMs (notice that the raster readback looks normal, and the target distribution looks OK). Anyway, we will keep a close eye on the spot++ and BPM readback for future runs to make sure the beam position is stable.