A description of the currently valid layouts is given at the The CMS Tracker Upgrade site

Layout name Layout rz Layout rphi Revision Notes
OT613_200_IT404 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Geometry: Lower radii in 3 layers in IT Barrel with respect to TDR.
Pixel aspect ratio: 25x100 everywhere (like TDR).
OT613_200_IT405 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Geometry: Same as IT404.
Pixel aspect ratio: 50x50 everywhere.
OT613_200_IT406 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Geometry: Same as IT404.
Pixel aspect ratio: 25x100 in 1x2 modules, 50x50 in 2x2 modules.
OT613_200_IT407 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Geometry: Same as IT404.
Pixel aspect ratio: 50x50 in 1x2 modules, 25x100 in 2x2 modules.
OT613_200_IT408 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Geometry: From TDR, with (7+3) disks in IT instead of (8+4).
Pixel aspect ratio: 25x100 everywhere.
OT613_200_IT420 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Geometry: Same as IT404.
Pixel aspect ratio: 25x100 in 1x2 modules, 50x200 in 2x2 modules.
OT613_200_IT421 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Geometry: Same as IT404.
Pixel aspect ratio: 25x100 in 1x2 modules, 100x100 in 2x2 modules.
OT613_200_IT422 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Geometry: Same as IT404.
Pixel aspect ratio: 50x50 in 1x2 modules, 50x200 in 2x2 modules.
OT613_200_IT423 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Geometry: Same as IT404.
Pixel aspect ratio: 50x50 in 1x2 modules, 100x100 in 2x2 modules.
OT613_200_IT502 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Tilted IT geometry.
Pixel aspect ratio: 50x50 everywhere.
OT613_200_IT503 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Tilted IT geometry.
Pixel aspect ratio: 50x50 in 1x1 and 1x2 modules, 25x100 in 2x2 modules.
OT614_200_IT404 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    OT study.
Post-TDR baseline (presently).
Update in TEDD from Nick (Update in PS module design + Phi-rotation of half a module).
OT614_200_IT430 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT404.
Reduced chip size (same length as Atlas) + Reorganized geometry to insure coverage.
OT614_200_IT440 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT404.
'Swiss layout': 1x1 modules in TEPX Ring 1 + 2x2 modules in TEPX Ring 2.
+ Reorganized geometry to insure coverage.
OT614_200_IT441 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT404.
1x1 modules in TEPX Ring 1 AND in TFPX Ring 1 + 2x2 modules in TEPX Ring 2.
+ Reorganized geometry to insure coverage.
OT614_200_IT450 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT404.
Radii in TEPX set to ~ equidistant & See impact on 2-hit and 3-hit IT 'stubs' distribution.
This is in the context of designing TEPX in view of luminosity measurements.
OT614_200_IT451 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT450.
Tune radii and numModules in TEPX to try to equilibrate 3-hit 'stubs' counts among rings.
This is in the context of designing TEPX in view of luminosity measurements.
OT614_200_IT452 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT450.
In this layout, TEPX is tuned to have perfectly equilibrated 3-hit 'stubs' counts among rings.
This is in the context of designing TEPX in view of luminosity measurements.
OT614_200_IT460 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT404.
TBPX conversion station placed on top of TBPX.
OT614_200_IT461 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT404.
TBPX conversion stations placed on services cylinders (stations Z positions could be tuned).
OT614_200_IT601 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT404.
Skewed IT geometry.
Layer 3: 100 mm -> 102 mm. Layer 4: 140 mm -> 143 mm.
OT614_200_IT602 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT601.
Skewed IT geometry.
bigDelta: 1.5 -> 2.5 mm in Layers 2,3,4.
OT614_200_IT610 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT602 (TBPX) and IT451 (TFPX + TEPX).
Baseline Skewed IT geometry.
ROC size: 16.4 mm x 22 mm -> 16.8 mm x 21.6 mm. Numerous geometry adjustments (see tkLayout's readme).
OT614_200_IT611 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT610.
TEPX: 2x2 modules in Ring 1 and Ring 2.
OT614_200_IT612 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT611.
bigDelta: 4 mm -> 2 mm, smallDelta: 2 mm -> 4 mm.
OT614_200_IT613 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT612.
Stretched TEPX in |Z|.
OT615_200_IT404 dev-3386-45a21aa on https://github.com/tkLayout/tkLayout.git    OT study.
TBPS: Adjusted plank thickness + Changed alternation of outer / inner radii.
OT616_200_IT404 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    OT study.
Was based from OT615.
Shrink OT to fit new OT envelope (leave space for BTL + ease IT insertion). Diff in TEDD, TB2S, TBPS L1.
OT616_IT613 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    OT study.
Was based from OT616_200.
Sensor thickness: 200 um -> 290 um + Add deep-diffused Si + Review inactive Si + Add length to s-sensor in PS module.
OT616_IT614 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT613.
TFPX: Increased distance between Disks 6 and 7. + Put TBPX portcards between Disks 6 and 7.
OT616_IT615 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT614.
TFPX: Changed sensors spacing within each double-disk system.
OT616_IT616 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT615.
TFPX: Shift all double-disks (and materials volumes and TBPX portcards) by + 25mm in Z.
OT616_IT699 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT615.
Reduced holes in TBPX L1 and L2: 1.3 mm -> 0.6 mm, to account for future 3D sensors spacing.
OT616_IT700 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT699.
Same geometry + materials, but 3D sensor type in TBPX L1 + TBPX L2 + TFPX R1 (+ slightly different inactive Si).
OT617_IT615 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    OT study.
Was based from OT616.
All TEDD: update smallDeltas to latest info.
Improve transition region between TB2S and TEDD by removing readout hybrid in TEDD1, R15.
OT618_IT615 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    OT study.
Was based from OT617.
Also improve transition between TB2S/TBPS and TEDD by removing readout hybrid in TEDD2, R15.
OT800_IT615 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    OT study.
Was based from OT616. All TEDD: Update smallDeltas to latest info.
TBPS: Adjustments in Layer 1 to enable a safe IT installation, while respecting needed spacing with TBPS Layer 2.
OT800_IT621 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT615. 50x50 everywhere (instead of 25x100).
OT800_IT700 dev-3450-9145a08 on https://github.com/tkLayout/tkLayout.git    IT study.
Was based from IT699.
Same geometry + materials, but 3D sensor type in TBPX L1 + TBPX L2 + TFPX R1 (+ slightly different inactive Si).