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    User name JOAQUIN LOPEZ

    Log entry time 01:30:57 on March 10, 2007

    Entry number 195352

    keyword=Target status from physics replay

    In order to study the status of the Pb+C and Bi+C targets, the variables rb.Raster.target.dir.y vs rb.Raster.target.dir.x (Position of the Raster at the target) have been ploted for the whole range of the runs. 4 plots are made for each run (or group of runs):

    1 ) With the whole number of events 2 ) With a cut in Emiss corresponding to the main Carbon peak 3 ) With a cut in Emiss corresponding to the outermost states of Pb or Bi, no carbon is expected within this cut 4 ) The large Emiss region, dominated by Pb or Bi.

    It can be seen that the bismuth content from the C+Bi+C target is irregular in the lower half from the very beginning of the experiment (run 1324), and that the lead in C+Pb+C is gone (run 1308) in a large area. The onset of the lead is in run 1209 and was gradually (and very slowly) growing during the following runs.



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