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PDT Orientation in Space

cell_0 r f z. A - Layer. B - Layer. C - Layer. lo lo lo. 0 X 0, 0 X 1, 0 X 5 X = 1 , 2 , 3. 115 , 135. 2 X 0,2 X 1,2 X 4,2 X 5 X = 0 , 1 , 2 , 3 , 4. lo hi hi. 0 X 2, 0 X 3, 0 X 6 X = 1 , 2 , 3. 116 , 136.

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PDT Orientation in Space

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  1. cell_0 r fz A - Layer B - Layer C - Layer lo lo lo 0X0, 0X1, 0X5 X = 1 , 2 , 3 115 , 135 2X0,2X1,2X4,2X5 X = 0 , 1 , 2 , 3 , 4 lo hi hi 0X2, 0X3, 0X6 X = 1 , 2 , 3 116 , 136 2X2,2X3,2X6,2X7 X = 0 , 1 , 2 , 3 , 4 hi lo hi 1x0 , 1x1 , 1x4 x = 0, 1, 2, 3, 4 106 146 hi hi lo 1x2 , 1x3 , 1x7 x = 0, 1, 2, 3, 4 105 145 A.Maciel (N.I.U.) L2-Muon PDT Orientation in Space Nb; All chambers remain as in Run-I , except 115, 135, 116, 136 which are (x,p) rotated

  2. A.Maciel (N.I.U.) L2-Muon Cell 0 Position for East Chambers as Seen from East ( Assembly Bay View ) 241 221 201 141 121 101 Toroid 031 021 011 Cell Stagger (C) 0 Cell Stagger (A) 0 Calorimeter North South (B) 0 036 026 016 Toroid E-away 146 136 116 106 E-away 246 206 Note chambers 116 and 136 rotated (x,p) w.r.to run-1 West seen from West reproduces same cell-0 pattern 146 116 E-away All others E-near

  3. Central PDT’s Local fOrientation Map A.Maciel (N.I.U.) L2-Muon Electronics Readout Boards Toroids EAST WEST Calorimeter Bottom B-Layer exceptions Bottom B-Layer exceptions 115 135 116 136 105 145 106 146

  4. Scintillator Coverage for Central PDT’s Z Central C-layer PDT Central A-layer PDT C D E F A B C D E A B C D E 8 9 A B 5 6 7 8 9 5 6 7 8 9 4 5 6 7 0 1 2 3 4 0 1 2 3 4 0 1 2 3 φ For Aφ counters, each SFE holds a half octant

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