The FinalGainCalculationPlots.pdf shows the histograms and fits that determined the final gains. For Rings 1, 2, 39, & 40, the value extracted from the plots have corrections applied. The details of this are described in the calibration note in section 3.5.

CalibrationNote.pdf goes over the details of the calibration, the choices made, and an overview of the procedure.

Kevin wrote a detailed procedure going over the use of the code, which can be found in KevinsBemcCalibrationProcedure.pdf