? ENDCAP: Mechanics IFIC-Valencia

Petal Concept: Components Petal mass estimation Mass (g) Facings + Honeycomb + Epoxy 227,9 POCOFOAM 50,6 SS Pipe   73,4 SMC 95 CGL 60 Bus Cable + Epoxy 85,3 Silicon 107,5 Chips 12,4 Hybrid + BeO + Epoxy 116,5 Total 828,6

Petals: Sensors Overlap and Dimensions Rout: 958mm 205 - 280mm Silicon Rout: 951mm Overlap Rout: 3mm Silicon Rin: 334.5mm Overlap Rin: 3mm 80mm Rin: 327mm

Petals: Sensors Overlap and Dimensions Rout: 958mm 215 - 280mm Rout: 11mm Silicon Rout: 951mm Overlap angle: 12mrad ATLAS PROJECT DOC No: Utopia V1.0 N.P. Hessey Silicon Rin: 334.5mm Rin: 4mm 90mm Rin: 327mm

Disks: Sensors Overlap Y Rin: 4mm Disk rotation is not allowed by this design X Overlap angle: 12mrad (as example) Disk could be reflected 180º (plane XY) No Disk overlap; symmetry is maintained by sensors on both petal sides on every Disk and therefore Petals are reduced 11mm at Outer radius. With Disk overlap symmetry is maintained by only sensors on one Petal side on every Disk. Rout: 11mm 11.25º 11.25º

Short Strips on rings 4 & 5 8 6 2x10 4x8 4x6 2000 μW/mm2 1700 μW/mm2

Thermal Runaway 8 6 2x10 4x8 4x6

How does layout affects to Petals? 3 different Disks and 4 different Petals Covering from R325 up to R950mm Similar distances between disks 120mm clearance to barrel and pixel 1 different Disks and 2 Petals shapes Covering from R336 up to R951mm Different distances between disks; different petal insertion. 60mm clearance to barrel and less than 20mm to closest pixel disk

CF Inner Cylinder Apertures on Outer cylinder to permit services exit 8 support bars constrain disks Inner cylinder with 4 different diameters to constrain disks and sustain petals Master disk supports entire structure

CFRP-KOREX Disks 1.- Master Disk + Support bars + Inner cylinder 2.- Disks are assembled into the structure.

CF Frames

Lateral Support Beams

Services Support Rings

(4/16) Rows of Petals: Insertion

(4/16) Rows of Petals: Services and Testing 40 petals from 160 (25%)

(12/16) Rows of Petals: Insertion

(12/16) Rows of Petals: Services and Testing

Outer Cylinder Rails: EC Insertion

ENDCAP Envelope

Services: cabling Capillaries Services estimation includes: Opto fibers x18 HV cabling x18 LV cabling x2 Inlet and Outlet capillaries DCS x18 Al service channel Capillaries Total per petal (g/mm)   0,39502609 Total per Disk (g) Services Disk 1: from z: 2956mm to z: 1376mm 19972,5192 Services Disk 2: from z: 2956mm to z: 1476mm 18708,43571 Services Disk 3: from z: 2956mm to z: 1744mm 15320,69194 Services Disk 4: from z: 2956mm to z: 2141mm 10302,28047 Services Disk 5: from z: 2956mm to z: 2791mm 2085,737765 Total 5 Disks (g) 66389,66509

Accessible area after services 40 petals from 160 (25%) +12 (32,5%) +12 (40%) 1.4m

Services Connections 2D-Layout: conflictive area MANIFOLDING CONNECTIONS: AREA 3 CONNECTION POSSIBLE? IF NOT DIF. PIPES PER DISK 1.4m

Next Steps: Electrical Services, SMC, connectors Petal insertion - 3points support

Next Steps: F.E.A. Disks & Rings

Next Steps: 3D Layout Services Connectors or dif. Pipes? Pressure Losses admissible? Manifold X4? X5? 3D Layout Services

Next Steps: Mechanical Tests SETUP Deflections Modal test All possible information to check F.E.A Thermal Test / Electrical prototype? CO2 cooling plant Thermal camera CMM o Vision CMM?