Draft: VELO Upgrade II Geometry for Future Upgrades Structure

• Make changes based on run5-tmp, 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[-6.328660506350147, -2.4986959156636948, 1.331268675022757, 5.161233265709209, 8.991197856395662, 12.821162447082113, 16.651127037768564, 20.48109162845502, 24.35, 31.161127736299782, 58.13211435913094, 61.97232949152463, 70.7988150496994, 72.7988150496994, 74.7988150496994, 76.7988150496994]*cm

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

Other Branches/MRs:

• Gauss: Gauss!1030 (merged)
• LHCb: LHCb!4375 (merged)
• Conditions: lhcb-conddb/lhcb-conditions-database!122 (closed)
• Gaussino: Gaussino!129

TODO:

• Check for better Substrate and Hybrid layouts

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Validated by

• Core Software
• RTA
• Simulation