From digitization-v3r4p6_135005436_digi_DIGI.root and recon
Measured energy and best range selections
The energy returned for a Xtal is the geometric mean of the reconstructed energy for both sides of a Xtal. The energy from a + or - side can be reconstructed with either range 0 or range 1. this is the energy reconstructed from individual Xtals, where the different range selections show in different colors.
Range 0 is selected for low energy events including the muon peak. Around 100 MeV is a distribution of events where either range 0 or 1 is selected. Above 130 MeV range1 is selected for both ends.
Measured energy and ADC range 0
Here is the reconstructed energy vs ADC 0+ and
this is the reconstructed energy vs ADC 0-.