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picture1_Ppt Budget 70097 | Vtx Intro


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File: Ppt Budget 70097 | Vtx Intro
outline performance goal baseline design design parameters pixel technology options ladders support structure cooling system installation and alignment future prospects detector upgrade with beam energy r d needed performance goal ...

icon picture PPTX Filetype Power Point PPTX | Posted on 29 Aug 2022 | 3 years ago
Partial capture of text on file.
               Outline
   • Performance goal
   • Baseline design
    –Design parameters
    –Pixel technology options
    –Ladders
    –Support structure
    –Cooling system
    –Installation and alignment
   • Future prospects
    –Detector upgrade with beam energy
    –R&D needed
                    Performance goal
     • Excellent impact parameter resolution
                                   3/2
            s  < 5 ⊕ 10/psin q [mm]
             IP 
     • Large acceptance
          max |cosq| ≅ 0.96 (L1–L3) 
                            ≅ 0.9 (outermost layer)
     • Low pixel occupancy:  ≲few%
                     Design parameters
      • Overall design
         –Each ladder has sensors on both sides ~2 mm apart
         –Three layers of the double-sided ladders make the vertex detector
         –Rin = 16 mm, Rout = 60 mm
         –Material budget ~ 0.3%X /ladder = 0.15%X /layer
                                    0                 0
      • Software baseline parameters
         –Conservative parameters which have been demonstrated or seem 
          within our reach will be used
         –It should be noted that the MOKKA simulation model is independen
          t of sensor technology option
         –Difference in sensor technologies (point resolution, etc.) matters on
          ly in digitization and reconstruction phase, or in the background stu
          dy
                 Design parameters
                R (mm)   |Z| (mm)  |cosq| s       Readout time (ms) 
                                          (mm)    (for CMOS)
     Layer 1    16       62.5      0.97   2.8     50
     Layer 2    18       62.5      0.96   6       10
     Layer 3    37       125       0.96   4       100
     Layer 4    39       125       0.95   4       100
     Layer 5    58       125       0.91   4       100
     Layer 6    60       125       0.90   4       100
             Design parameters
   • Impact parameter resolution
      –Difference is very small
          3 mm resolution     New parameter
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...Outline performance goal baseline design parameters pixel technology options ladders support structure cooling system installation and alignment future prospects detector upgrade with beam energy r d needed excellent impact parameter resolution s psin q ip large acceptance max cosq l outermost layer low occupancy few overall each ladder has sensors on both sides mm apart three layers of the double sided make vertex rin rout material budget x software conservative which have been demonstrated or seem within our reach will be used it should noted that mokka simulation model is independen t sensor option difference in technologies point etc matters ly digitization reconstruction phase background stu dy z readout time ms for cmos very small new...

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