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LHCb Hybrid to Pedestal

LHCb Hybrid to Pedestal. John Carroll. Metrology. Top of Silicon. This side is Paddle and R side. R to Phi face to face Width 1.995mm. R to Phi face to face Width 2.017mm. Tilt on left side From CL 0.367mm. Tilt on right side From CL 0.443mm. Hybrid. Tilt of Hybrid.

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LHCb Hybrid to Pedestal

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  1. LHCb Hybrid to Pedestal John Carroll

  2. Metrology John Carroll – VELO PRR

  3. Top of Silicon This side is Paddle and R side R to Phi face to face Width 1.995mm R to Phi face to face Width 2.017mm Tilt on left side From CL 0.367mm Tilt on right side From CL 0.443mm John Carroll – VELO PRR

  4. Hybrid John Carroll – VELO PRR

  5. Tilt of Hybrid Left side leans 221μm Right side leans 216 μm John Carroll – VELO PRR

  6. ? John Carroll – VELO PRR

  7. Detector Plane -53μm 0μm -10μm +172μm John Carroll – VELO PRR

  8. Top of Paddle John Carroll – VELO PRR

  9. Position of Face Nominal distance from CL to face 0.56mm Distance on existing Pedestal 0.44mm John Carroll – VELO PRR

  10. Summary • 1) Hybrid leans ~220 μm (away from paddle) • 2) Paddle face offset in Z by 120 μm • 3) Existing twist in hybrid (for hybrid #45 70 μm) • 4) Accuracy of video measurement using focus ±10 μm John Carroll – VELO PRR

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