MIP Calibration 080626

Input Files:

• root://glast-rdr.slac.stanford.edu//glast/Data/Flight/Level1/LPA/prod/1.56/svac/r0236191699_v001_svac.root

Input Time Span (MET seconds): 236191701.9560 - 236195764.0892

Triggers used: 580234

• Delivered to MOOT with Jira OBCONF-42 on 7 July 2008. Inserted under alias "calibGenACD"

Summary Plots.

Plots with respect to previous calibration.

Reference Files:

• Previous Calibration xml

Output Files:

• Calibration xml
• Fit Plots

Comments:

• The differences w.r.t. previous (about 10% increase) are consistent with temperature drift.
  
• The Ribbons (in red in the scatter plot) actually have higher gain, but this is washed out by the change in angular distribution.
  These data have many more events on the sides of the ACD where the ribbon signals are much lower in one PMT and much high in the other. The next result is a high average signal with a lower most probable value.