For EURICA measurements degrader thickness were increased
trying to decrease MACI and AIDA trigger rate
Before we had 5.7 mm of Al
Now we have: 
Degrader: 4.0 + 1.0 + 0.6 + 0.4 +0.3 = 6.3 mm of Al
also 2x 0.8mm Al plates were added before 
the MACI start detector (thus covering partially AIDA)
Trigger from AIDA will be taken from 3rd DSSSD