scaler channel assignment 2.4GeV LHe experiment 2009.03- (rev. 2009.05) 0 clock 1 ungated trigger 2 gated trigger 3 buffer change 4 event veto 5 6 =1> 7 =2> 8 TAG (PL x SF) 9 clock 10 clock gated by DAQ busy 11 Sector 1 12 Sector 2 13 Sector 3 14 Sector 4 15 Sector 5 16 Sector 6 17 AC1 (up-left) 18 AC2 (up-right) 19 AC3 (down-left) 20 AC4 (down-right) 21 AC OR 22 Tag x !Up x SectorOR : 23 Up Veto 1 24 Tag x !Up x SectorOR : 25 (Up Veto 2) 26 Tag (PL x SF) 27 Fwd(2or3) x !AC 28 Tag x Fwd(2or3) 29 Tag x AC 30 Tag x Fwd(2or3) x !AC 31 Tag overlap out (PL x SFoverlap) 32 Inner 1 33 Inner 2 34 Inner 3 35 Inner 4 36 Inner 5 37 Inner 6 38 Outer upxdw 1 39 Outer upxdw 2 40 Outer upxdw 3 41 Outer upxdw 4 42 Outer upxdw 5 43 Outer upxdw 6 44 Outer upxdw 7 45 Outer upxdw 8 46 Outer upxdw 9 47 Outer upxdw 10 48 Outer upxdw 11 49 Outer upxdw 12 50 Fwd rxl 1 51 Fwd rxl 2 52 Fwd rxl 3 53 Fwd rxl 4 54 Inner OR 55 Outer OR 56 Fwd(1,2,3,4) OR 57 Sector OR 58 Tag x SectorOR 59 Tag x !Up x SectorOR 60 Tagx!UpxFwd(2or3)x!ACx(TOF m>=1)x!(e+e-) 61 Tagx!UpxFwd(2or3)x!ACx(TOF m>=1)x!(e+e-) 62 Tag x !Up x SectorORxOuter>=2 63 ?Tag x !Up x SectorORxOuter>=2x!AC ->Beam monitor (2009.5)