The FHE thresholds distribution for 1/2 of CAL channels (odd Lo configuration)

 In spite of low statistics procedure works well.

 The FHE threshold vs number of events with FHE=ON per crystal end

 The increase in number of events when threshold decreases in natural, as the spectrum of energy deposition is rapidly decreasing with energy.

So, the low thresholds below 900 MeV are real - they have very goo statistics. The crystal with smalles statistics has 3 FHE hits. It is desirable to increase statistics by factor ~3 to have at least 10 triggered events per crystal end.