1. SMT Assembly & Rates, Take 2 (or 3?) Changes –Limited tents to Barrels 1&6, layers 1&3 (of 4) –Used Yuri’s tent numbers in addition to nominal tolerance –Calculated for  z = 22 cm as well as  z = 30 cm Will show –pass rate for nominal tolerance –efficiency at fixed rate (nominal) –Plots over range of “nominal” for p T =1.5 GeV (have 3, infinite)

2. For calibration, consider an analytic case Assume gaussian,  =1, but in reality different  Make a cut at 2.0, and integrate outside. Make ratio, R, of areas for true  over  =1.0. Trigger increase is R 3 Trigger Rate  R Increase 1.01 1.05 1.2x 1.05 1.25 1.7x 1.10 1.50 3.4x

3. pT Det. Background Rel. Trigger IP Cut Effi/ Effi/ (GeV) Config Pass Frac(%) Rate Increase (micron) Tk(%) Evt  Ideal 4.5 = 1.0 68 76 68% Nominal 10 (10/4.5)^3 = 11 86 72 61% Distor. 14 (14/10)^3 = 2.7 100 68 53% 3.0 Ideal 4.5 76 74 64% Nominal 9 8 94 69 55% Distor. 12 [11] 2.4 [1.8] 110 65 47% 1.5 Ideal 4.5 96 76 53% Nominal 7.5 4.6 108 66 49% Distor. 10.[9.3] 2.4 [1.9] 120 63 44% Results for 30 cm Beam Spot (Trigger: 3 tracks, S>2) [] indicate different seed to geometry motions

4. pT Det. Background Rel. Trigger IP Cut Effi/ Effi/ (GeV) Config Pass Frac(%) Rate Increase (micron) Tk(%) Evt  Ideal 4.5% 70 76% 69% Nominal 10 11x 84 72 61 Distor. 11 1.3?? 86 71 60 3.0 Ideal 4.5 70 76 69 Nominal 8 6 80 74 63 Distor. 10 2 82 73 62 1.5 Ideal 4.5 70 77 70 Nominal 7 4 75 75 67 Distor. 9 2 77 74 65 Results for 22 cm Beam Spot (Trigger: 3 tracks, S>2)

5. Continuous Variation in “Nominal” Nominal nominal