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Evaluation of SMT Assembly Rates - Changes in Tent Configurations

Analysis of SMT assembly rates with limited tent configurations for barrels and layers. Calculates pass rates and efficiency for different tent sizes and trigger rates.

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Evaluation of SMT Assembly Rates - Changes in Tent Configurations

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  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 sz = 22 cm as well as sz = 30 cm • Will show • pass rate for nominal tolerance • efficiency at fixed rate (nominal) • Plots over range of “nominal” for pT=1.5 GeV (have 3, infinite)

  2. Trigger Rate s R Increase 1.01 1.05 1.2x 1.05 1.25 1.7x 1.10 1.50 3.4x For calibration, consideran analytic case • Assume gaussian, s =1, but in reality different s • Make a cut at 2.0, and integrate outside. • Make ratio, R, of areas for true s over s=1.0. • Trigger increase is R3

  3. [] indicate different seed to geometry motions 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)

  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 Variationin “Nominal” Nominal nominal

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