VELO Upgrade II Geometry for Future Upgrades Structure

• New U2 Velo moved from VP to "TV", Timing Velo
• Parameterised model defined in compact/components/trunk/TV/parameters.xml with full instructions on what and how to change the design
• Currently set to "Scenario X" with:
  • Pixel Size = 55um
  • Inner radius = 7.2 mm
  • Each chip made up of 256 x 256 pixels arranged into 2 rows of 3 chips
  • 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
• Parameterised Model means changing parameters.xml allows quick changes to geometry including swapping in corrugated foil

Other Branches/MRs:

• Gauss: Gauss!1030 (merged)
• Conditions: lhcb-conddb/lhcb-conditions-database!115 (merged)
• LHCb: LHCb!4375 (merged)

TODO:

• Decide on final pixel pitch, foil geometry & z positions of sensors - can maybe merge this already and make such changes in subsequent MR