Draft: VELO Upgrade II Geometry for Future Upgrades Structure

• Make changes based on !457, change 256x256 -> 384x384, and the corresponding layout of Substrate and Hybrid

  • compact/components/TV/trunk/parameters.xml
  • compact/components/TV/trunk/visualization.xml
  • Detector/TV/src/DeTVSensor.cpp
  • Detector/TV/include/Detector/TV/TVConstants.h

• Velo U2 "Scenario X" with:

  • Pixel Size = 55um
  • Inner radius = 7.2 mm
  • Each chip made up of 384 x 384 pixels arranged into 2 rows of 3 chips
  • Foil and Guard ring are inherited from lhcb/Detector!457:
    • Foil is a cylinder of aluminium 75um thick with a radius of 3.5mm, with the same z-length as the current foil
    • Guard ring is specifically factorised out with a different, inactive silicon
  • Layout design from peilian, in the forward direction: 16 station[-63.28660506350147, -24.98695915663695, 13.31268675022757, 51.61233265709208, 89.91197856395661, 128.21162447082114, 166.51127037768563, 185.6610933311179, 204.8109162845502, 311.61127736299784, 581.3211435913094, 619.7232949152464, 707.988150496994, 727.988150496994, 747.988150496994, 767.988150496994]*mm

• Parameterised Model means changing parameters.xml allows quick changes to geometry including swapping in corrugated foil

Other Branches/MRs:

• Gauss: Gauss!1030
• LHCb: LHCb!4375
• Conditions: lhcb-conddb/lhcb-conditions-database!122
• Gaussino:

TODO:

• Check for better Substrate and Hybrid layouts

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Validated by

• Core Software
• RTA
• Simulation