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S1 (switch A) = 10x40x2 mm vertical finger counter
S2 (switch B) = 40x40x2 mm square counter
S3 (switch C) = 100x100x10 mm downstream counter (NB not always in the beam line - moved back as a veto to Sh lightguide from august 11)
S4 (switch D) = 100x100x10 mm photon-tagging counter (overlapping last SSD)
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Trigger with DAQ veto (hardware trigger + AD DAQ veto for synchronized runs)
Trigger w/o DAQ veto (hardware trigger for CU-only runs, AD can run in parallel)
selection: connect the cable cable labelled Ext trigger to CU to the desired output
Trigger selection:
For the time being we are working with PS run we used the following trigger settingsettings:
- electrons and full-brem: S0+S2+NOTSh+NOTS3+C1+C2
- tagged photons: S0+S2+NOTSh+NOTS3+C1+C2+S4
- pions: S0+S2+NOTSh+NOTS3+C1+C2 (Note C1 and C2 with reduced pressure and high discriminator threshold)
- protons: S0+S2+NOTSh+NOTS3+NOTC1+NOTC2 (Note C1 and C2 with high pressure and low discriminator threshold)