The new CAL pedestals calibration file based on nomSciOps run 245129872 collected on Oct 8, 2008 is available at:
/nfs/slac/g/svac/chehtman/calibGenCAL_analysis/flight/ped/calPed_8oct08_3utc37_run245129872.xml
The new MeV per DAC calibration file based on 107 nomSciOps runs 244137831 - 244733848 collected during the week Sep 26 - Oct 3, 2008 is available at:
/nfs/slac/g/svac/chehtman/calibGenCAL_analysis/flight/fit_protonCalib_nomSciOps_week26sep3oct2008_sum_try2.calMPD.xml
These files are proposed to replace the June 28 pedestal calibration file and pre-launch MeV per DAC calibration file used so far for offline data reconstruction in the pipeline.
The comparison of Oct 8 and Jun 28 pedestals (LEX8 and HEX8 ranges) is shown on the following plot:
The pedestal drift is significant: between -12 and +18 ADC units.
The time evolution of the "pedestal temperature" defined by the slope of the above corellation is shown on the following set of plots: