Towards a realistic design for a forward tracker at the ILC I. Garcia M.A. Villarejo M. Vos 1
Outline ● 1. Power pulsing – 1.1 Barrel ladders – Set-up - Thermal measurements – 1.2 Petal ladders – Set-up ● 2. Micro channel cooling: – 2.1 Lab. Experiments – 2.2 CAE Simulations – 2.3 Comparison ● 3. CAD model – 3.1 First design of the services (cooling, cables) – 3.2 Assembly strategy ● 4. Material budget calculations – 4.1 Single Barrel ladder – 4.2 Vertex region in θ angle – 4.3 Vertex region in Φ angle ● 5. Future work ● 6. Conclusions 2 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
1. Power pulsing • Pulsing power system developed at IFIC Valencia Mechanical ladder prototype DEPFET technology 1 ms 200 ms ILC DUTY CYCLE • Study of the thermo-mechanical properties of thin sensors with a pulsed power supply 3 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
1. Power pulsing 23.02 0.04 o C 23 Temperature sensor ( o C) 22.98 0.04 o C 22.96 22.94 22.92 0 50 100 150 200 Time (ms) 4 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
1. Power pulsing 24 Si petals CAD design FTD pixel disk mock-up - DEPFET mechanical petals - 75 um Silicon (< 0.2% X0) - CFRP Support disks 5 - 1mm (0.09% X0 avg. area) - CFRP connection tubes - Custom 3D printed joints Mechanical support structure 5 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
2.1 Micro channel cooling: Lab. Expertiments Tests made: 5W and water cooling 2 1 Setup Initial state Water and DEPFET at room temperature 304.45K Power on Cooling on 3 4 No cooling 0,1l /h 5W water at 304.45K 312.85K 378,35K 6 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
2.2 Micro channel cooling: CAE Simulations Simulation made: 5W and water cooling with same initial conditions as test Isolation Isolation (FR4) (FR4) 7 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
2.2 Micro channel cooling: CAE Simulations Simulation made: 5W and water cooling with same initial conditions as test Isolation Isolation (FR4) (FR4) T_water_out=308.6K Q_water=Cp*m* D T=(4186)*(2.15*0.00038*0.00034*997)*(308.6-304.4)= 4.87W 97% of the 5W is absorbed by the cooling flow 8 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
2.3 Micro channel cooling: Comparison Initial state Water and DEPFET at room temperature Isolation Isolation (FR4) (FR4) 304.45K Cooling on 0,1l /h water at 304.45K Simulation: D T= 7.15K 312.85K Test: D T= 8.4K 9 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
3.1 CAD Model: First design of the services (cooling, cables) 10 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
3.1 CAD Model: First design of the services (cooling, cables) 11 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
3.2 CAD Model: Assembly strategy Steps: 1 → 2 SIT2 2 → 3 CFRP 1 2 3 → 4 SIT 1 & CFRP 4 → 5 VXBD 5-6 & CFRP 3 4 5 → 6 VXBD 3-4& CFRP 5 6 12 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
3.2 CAD Model: Assembly strategy Steps: 6 → 7 VXBD 1-2 & CFRP 7 → 8 FTD1 & CFRP 7 8 8 → 9 FTD 2 & CFRP 9 → 10 FTD 3-7 & 9 10 CFRP (x2) 10 → 11 Beam Pipe 11 → 12 VXBD 3-4 & CFRP 11 12 13 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.1 Material budget calculations: single barrel ladder Thickness Si: End of ladder: 0,103+0,340+0,076 mm ; Sensitive area: 0,050 mm ; Balcon: 0,450mm (x0,66) End of ladder Sensor region ILC 1st layer end of ladder: 0.642 %X 0 ILC 1st layer sensitive ladder: 0.142 %X 0 0,033 0,021 0,002 DCDs/DHPs Sensitive 0,031 0,010 Frame Si Structure 0,007 0,006 0,059 Switcher Fluid (CO2) 0,053 0,039 Bumps Bumps Cu Layer Cu Layer 0,073 0,449 SMDs Power pulsing (cable) Average %X0=0,275 14 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations CAD Model .txt file with thickness Plot the data LPHNE's macro Import data and calculate %X/X0 15 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations CAD Model .txt file with thickness Plot the data LPHNE's macro Import data and calculate %X/X0 - No use of GEANT4 - Resolution of 0,01º - The studies are done for: Θ=[0,90]º and ϕ=0º Θ=0º and ϕ=[0,360]º - Good tools for complex geometries, but needing of data post processing 16 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations CAD Model .txt file with thickness Plot the data LPHNE's macro Import data and calculate %X/X0 All of this has been possible because of the - No use of GEANT4 tool developed by: - Resolution of 0,01º - The studies are done for: Θ=[0,90]º and ϕ=0º Θ=0º and ϕ=[0,360]º - Good tools for complex geometries, but needing of data post processing 17 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations θ 18 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations 19 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations 8 7,5 Cables 7 FTD1-2 6,5 Beam pipe 6 5,5 CFRP 5 VXBD1-6 4,5 % Radiation length TOTAL 4 3,5 3 2,5 2 1,5 1 0,5 0 90 86 82 78 74 70 66 62 58 54 50 46 42 38 34 30 26 22 18 14 10 6 88 84 80 76 72 68 64 60 56 52 48 44 40 36 32 28 24 20 16 12 8 4 θ Angle [º] 20 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations Average amount of % radiation length per material 8 0,067 7,5 Cables 7 Cables 0,158 FTD1-2 6,5 FTD1-2 Beam pipe 6 Beam 0,348 pipe 0,872 5,5 CFRP CFRP 5 VXBD1-6 VXBD1-6 0,328 4,5 % Radiation length TOTAL 4 3,5 3 2,5 2 1,5 1 0,5 0 90 86 82 78 74 70 66 62 58 54 50 46 42 38 34 30 26 22 18 14 10 6 88 84 80 76 72 68 64 60 56 52 48 44 40 36 32 28 24 20 16 12 8 4 θ Angle [º] 21 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations 8 7,5 Cables 7 6,5 Beam pipe 6 CFRP 5,5 VXBD1-6 5 % Radiation length 4,5 Total until first sensor 4 3,5 3 2,5 2 1,5 1 0,5 0 90 86 82 78 74 70 66 62 58 54 50 46 42 38 34 30 26 22 18 14 10 6 88 84 80 76 72 68 64 60 56 52 48 44 40 36 32 28 24 20 16 12 8 4 θ Angle [º] 22 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations 23 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations 6 Cables FTD1-6 5,5 Beam pipe 5 CFRP VXBD1-6 4,5 TOTAL 4 3,5 % Radiation length 3 2,5 2 1,5 1 0,5 0 88 84 80 76 72 68 64 60 56 52 48 44 40 36 32 28 24 20 16 12 8 90 86 82 78 74 70 66 62 58 54 50 46 42 38 34 30 26 22 18 14 10 6 θ Angle [º] 24 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations Average amount of % radiation length per material 0,148 6 Cables 0,162 FTD1-6 5,5 Cables FTD1-6 Beam pipe 5 Beam pipe 0,770 CFRP CFRP 0,348 VXBD1-6 VXBD1-6 4,5 TOTAL 4 0,449 3,5 % Radiation length 3 2,5 2 1,5 1 0,5 0 88 84 80 76 72 68 64 60 56 52 48 44 40 36 32 28 24 20 16 12 8 90 86 82 78 74 70 66 62 58 54 50 46 42 38 34 30 26 22 18 14 10 6 θ Angle [º] 25 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations 6 Cables 5,5 Beam pipe CFRP 5 VXBD1-6 Total until first 4,5 layer 4 3,5 % Radiation length 3 2,5 2 1,5 1 0,5 0 88 84 80 76 72 68 64 60 56 52 48 44 40 36 32 28 24 20 16 12 8 90 86 82 78 74 70 66 62 58 54 50 46 42 38 34 30 26 22 18 14 10 6 θ Angle [º] 26 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.2 Material budget calculations Ф 27 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
4.3 Material budget calculations: Vertex region in Φ angle 28 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
5 Bonus: long barrel sensor coverage in θ 9 8 VXBD1-6+SIT1-2 VXBD1-6+SIT1 VXBD1-6 7 VXBD1-6+FTD1 VXBD1-5+FTD1 Number of sensors VXBD1-5+FTD1+FTD3 6 VXBD1-4+FTD1+FTD3 VXBD1-4+FTD1-3 VXBD1-3+FTD1-3 5 VXBD1-2+FTD1-3 VXBD1-2+FTD1-4 VXBD1+FTD1-4 4 FTD1-4 FTD1-5 FTD2-5 3 FTD2-6 FTD2-7 FTD3-7 2 FTD4-7 FTD5-7 FTD6-7 1 FTD7 0 Angle in theta ϴ 29 M.A. Villarejo Bermúdez Towards a realistic design for a forward tracker at the ILC
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