SVT PST design update per Sep 2025 Drawing #1010
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…ing.PACKET.SEP2025. And, removed outer cones from both P and N sides.
1. Updated SupportServiceMaterial_geo.cpp to handle multiple solid subtraction in a backward compatible way. 2. Added negative service passthrough plate for SVT PST. 3. Updated the z-position of the SVT PST flange 4. Modified rmin of TrackerSupportCylEndcap volumnes such that they don't get shifted outwards with the addition of a layer of service material underneath.
…dges haven't been smoothened.
…sthrough plate and/or beampipe support plate.
…ad of inside to avoid overlap with endcap services).
…n't been updated yet.
… end cap P2D, P2E, as well as the inner detector barrel support cylinder (on both sides)
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Briefly, what does this PR introduce?
Significant updates to the existing SVT pixel support tube (PST) model according to the details outline in the SVT PST Drawing Packet Sep 2025. Please find attached for more details.
What kind of change does this PR introduce?
Please check if this PR fulfills the following:
Does this PR introduce breaking changes? What changes might users need to make to their code?
No
Does this PR change default behavior?
No