Mod 15e: Marked as Good

Module 15, eta plane seems to have some unusual behavior that makes me suspicious of it.  Strips 2101-2150 seem to be ok but after that things deteriorate.  Figure 1 shows the plot of ADC vs softId for the whole fill:

Figure 1:

 

Figure 2 shows the plot for the phi plane of module 15:

Figure 2:

 

Note the band structure in the pedestal for strips above 2150 in the eta plane, where the number of hits increases and then falls off again.  We would expect, however, that the peak of the distribution would be at the lowest ADC value.  This behavior is repeated in individual runs, as in Figure 3 which plots ADC vs softId for run 10092024:

Figure 3:

 

This module has 48 bad strips, amounting to most of those above 2150, which would leave it as excellent: however, as I don't entirely trust, and some of the fits for the strips above 2150 are questionable (see Figure 4) it I'm going to downgrade it to good.

Figure 4: