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Radiation Length Distribution Aug 15, 2008 Maki Kurosawa RIKEN

Radiation Length Distribution Aug 15, 2008 Maki Kurosawa RIKEN. Modified Medium for Pixel Layer. M55J 150um (RC). M55J 380um (BUS). Before. Si 150um (Sensor). width 15mm. C 100um (Resin). M55J 500um (Omega). CF 380um (Stave). Coolant ( H 3 C 4 OF 7 ) f 2mm. total = 1.03 (%). After.

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Radiation Length Distribution Aug 15, 2008 Maki Kurosawa RIKEN

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  1. Radiation Length Distribution Aug 15, 2008 Maki Kurosawa RIKEN

  2. Modified Medium for Pixel Layer M55J 150um (RC) M55J 380um (BUS) Before Si 150um (Sensor) width 15mm C 100um (Resin) M55J 500um (Omega) CF 380um (Stave) Coolant (H3C4OF7)f2mm total = 1.03 (%) After M55J 390um (BUS) = 100um (Al) + 290um (G10) Si 350um (Sensor+RC) width 15mm Coolant (H3C4OF7)f3mm total = 1.30 (%)

  3. Modified Medium for Strip Layer (ROC3 ½ oz) Cu 17um (BIAS) Cu 17um x 2 (AGND + AVDD) Si 625um Before width 31.3mm Cu 17um (DGND) width 54.35mm width 72mm Coolant f2mm H3C4OF7 G10 0.6mm (Insulator) omega piece 500um CF 500um (stave) total = 1.95 + 1.25*1.3 ~ 3.6 (%) After width 31.3mm width 54.35mm width 72mm Coolant f3mm H3C4OF7 total = 1.97 + 1.25*1.3 ~ 3.6 (%)

  4. Present Material of Pixel Layer (8) Omega : M55J 500um Coolant : H3C4OF7 (7) Stave : Carbon Fiber 300um (6) Resin : C 100um (5) Sensor : Si 200um (4) ROC : Si 150um (3) Resin : C 100um (2) BUS (VDD and GND) : Al 100um (1) BUS : M55J 290um

  5. Present Material of Pixel Layer Stave : Carbon Fiber 500um Omega : M55J 500um G10 500um Coolant : H3C4OF7 SVX4 : Si 300um Sensor : Si 625um

  6. Cross Section of SVX

  7. ROC3 ½ oz

  8. Radiation Length Distribution at Previous Meeting The material of resin, carbon and coolant were not included in the calculation of a radiation length. Layer 2 X/X0 ~ 1% Layer 1 X/X0 ~ 1% Plot at previous meeting Layer 3 X/X0 ~ 3% Layer 3 X/X0 ~ 3% • CONDITION • -1.2 < h < 1.2 (FLAT) • 0.0 < f(degree) < 360 (FLAT)

  9. Radiation Length Distribution Layer 2 X/X0 ~ 2% Layer 1 X/X0 ~ 2% Layer 3 X/X0 ~ 3.7% Layer 3 X/X0 ~ 3.9% • CONDITION • -1.2 < h < 1.2 (FLAT) • 0.0 < f(degree) < 360 (FLAT)

  10. Radiation Length Distribution (ROC3 ½ oz) Radiation Length for VTX Radiation Length v.s. q Radiation Length v.s. f VTX X/X0 ~ 11.5% SVX Acceptance h=1.2  33.5 (degree) SVX Acceptance Radiation length of VTX was estimated to be 11.5%.

  11. ROC3 ¼ oz

  12. Modified Medium for Strip Layer (ROC3 ¼ oz) Cu 8.5um (BIAS) Cu 8.5um (DGND) width 31.3mm width 54.35mm width 72mm total = 1.85 + 1.25*1.3 ~ 3.5 (%)

  13. Radiation Length Distribution (ROC3 ¼ oz) Radiation Length for VTX Radiation Length v.s. q Radiation Length v.s. f VTX X/X0 ~ 11% h=1.2  33.5 (degree) SVX Acceptance Radiation length of VTX was estimated to be 11%.

  14. Stave Thickness 300um Stave Width 31.3mm (ROC3 ½ oz)

  15. Modified Medium for Strip Layer (ROC3 ½ oz) Cu 17um (BIAS) Cu 17um x 2 (AGND + AVDD) Si 625um Before width 31.3mm Cu 17um (DGND) width 54.35mm width 72mm Coolant f2mm H3C4OF7 G10 0.6mm (Insulator) omega piece 500um CF 500um (stave) Width = 72mm total = 1.95 + 1.25*1.3 ~ 3.6 (%) After width 31.3mm width 54.35mm width 72mm CF 300um (stave) Width = 31.3mm Coolant f3mm H3C4OF7 total = 1.89 + 1.25*1.3 ~ 3.5 (%)

  16. Radiation Length Distribution (ROC3 ½ oz) Radiation Length for VTX Radiation Length v.s. q Radiation Length v.s. f VTX X/X0 ~ 11% SVX Acceptance h=1.2  33.5 (degree) SVX Acceptance Radiation length of VTX was estimated to be 11%.

  17. Summary • Implement a realistic omega shape and fixed some bug in my code. • Radiation length of VTX was estimated to be • ROC3 ½ version : 11.5 % • ROC3 ¼ version : 11 % • ROC3 ½ version, 300um thickness and 31.1mm width : 11% • “svx.f” and “phnx.par” file will be checkout next week.

  18. Stave Thickness 300um Stave Width 31.3mm (ROC3 ½ oz) Stave : Carbon Fiber 300um Width = 31.3mm

  19. Stave Thickness 300um Stave Width 31.3mm (ROC3 ½ oz) Layer 2 X/X0 ~ 2% Layer 1 X/X0 ~ 2% Layer 3 X/X0 ~ 3.3% Layer 3 X/X0 ~ 3.5% • CONDITION • -1.2 < h < 1.2 (FLAT) • 0.0 < f(degree) < 360 (FLAT)

  20. Tilt Angle of Pixel Layer Present Previous tilt : 13.02 tilt : 7.0 tilt : 7.8 tilt : 13.0 28.715 26.676 14.585 13.587 UNIT : degree

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