| Layer Name | Coordinates of Center | Material | Density | Thickness | Direction of Fibers | Center Coordinate of Fiber/Ribbon no. J | |||
| X | Y | Z | (g/cm3) | (cm) | (along axis) | (X) | (Y) | ||
| SCD Cover | 0.000 | 0.000 | 40.760 | Aluminum | 2.700 | 0.100 | I=0..12 (ladder position), J=0..13 (sensor position) | ||
| Clearance | 0.000 | 0.000 | 39.525 | Air | 0.000 | 2.370 | K= 0 for J=0..6, K=1 for J=7..13 | ||
| SCD Sensors | 0.000 | 0.000 | 38.321 | Silicon (6.5 x 5.8 cm2 sensors w/ 4x4 arrays of 1.5488x1.3738 cm2 | 2.330 | 0.038 | Pixels | -36.60+I*6.10 | -36.16+5.55*J+0.17*K |
| pixels, with 0.006 cm dead band between pixels, 0.1434 cm dead | |||||||||
| band around array) | |||||||||
| SCD Top Sensor Frame | 0.000 | 0.000 | 38.015 | Polycarbonate (79.70x77.94 cm2 with "windows", eff. density | 0.247 | 0.575 | |||
| 20.6% nominal) | |||||||||
| SCD Top Ladder | 0.000 | 0.000 | 37.637 | FR-4 fiberglass (79.70x77.94 cm2 eff. density 88.3% nominal) | 1.751 | 0.180 | |||
| SCD Top Thermal Strap | 0.000 | 0.000 | 37.497 | Aluminum | 2.700 | 0.100 | |||
| SCD Top Structural Frame | 0.000 | 0.000 | 37.447 | Aluminum (79.70x77.94 cm2 with window structure, eff. Density 11.25% nominal | 0.304 | 2.000 | Calculation of in-frame fill fraction: | 11.25% | |
| Clearance | 0.000 | 0.000 | 35.171 | Air | 0.000 | 2.552 | |||
| SCD Sensors | 0.000 | 0.000 | 33.876 | Silicon (6.5 x 5.8 cm2 sensors w/ 4x4 arrays of 1.5488x1.3738 cm2 | 2.330 | 0.038 | Pixels | -36.16+5.55*J+0.17*K | -36.60+I*6.10 |
| pixels, with 0.006 cm dead band between pixels, 0.1434 cm dead | |||||||||
| band around array) | |||||||||
| SCD Bottom Sensor Frame | 0.000 | 0.000 | 33.570 | Polycarbonate (79.70x77.94 cm2 with "windows", eff. density | 0.247 | 0.575 | |||
| 20.6% nominal) | |||||||||
| SCD Bottom Ladder | 0.000 | 0.000 | 33.192 | FR-4 fiberglass (79.70x77.94 cm2 eff. density 91.5% nominal) | 1.751 | 0.180 | |||
| SCD Bottom Thermal Strap | 0.000 | 0.000 | 33.002 | Aluminum | 2.700 | 0.200 | |||
| SCD Bottom Structural Frame | 0.000 | 0.000 | 32.902 | Aluminum (79.70x77.94 cm2 with window structure, eff. Density 11.25% nominal | 0.304 | 2.000 | Calculation of in-frame fill fraction: | 11.25% | |
| SCD Bottom Cover | 0.000 | 0.000 | 31.877 | Aluminum | 2.700 | 0.050 | |||
| T1 | 0.000 | 0.000 | 27.102 | Graphite (30 degree flare from 64.2 to 75.9 cm width) | 1.923 | 9.500 | |||
| T1 Cage | 0.000 | 0.000 | 22.225 | 30% graphite, 70% epoxy | 1.387 | 0.254 | |||
| Approximate by 0.141cm graphite with 1.77 g/cm3 density, followed | |||||||||
| by 0.113cm Lucite [CH2=C(CH3)CO2CH3] with 1.18 g/cm3 density) | |||||||||
| T2 | 0.000 | 0.000 | 15.896 | Graphite (30 degree flare from 52.0 to 62.9 cm width) | 1.923 | 9.367 | |||
| T2 Cage | 0.000 | 0.000 | 11.085 | 30% graphite, 70% epoxy | 1.387 | 0.254 | |||
| Approximate by 0.141cm graphite with 1.77 g/cm3 density, followed | |||||||||
| by 0.113cm Lucite [CH2=C(CH3)CO2CH3] with 1.18 g/cm3 density) | |||||||||
| S3 Cover | 0.000 | 0.000 | 10.150 | Aluminum (54.102 cm wide, 71.12 cm long) | 2.700 | 0.072 | |||
| S3 | 0.000 | 0.000 | 10.014 | Plastic scintillator fiber layer 115 cm long, 52 cm wide at center | 1.032 | 0.200 | Y | Read out together (side fibers longer, up to 141 cm) | |
| S3 Bottom | 0.000 | 0.000 | 9.857 | Aluminum (54.102 cm wide, 71.12 cm long) | 2.700 | 0.114 | 7.35523E-16 | ||
| Cal cover | 0.000 | 0.000 | 9.775 | Aluminum | 2.700 | 0.050 | |||
| Clearance | 0.000 | 0.000 | 9.550 | Air | 0.000 | 0.400 | |||
| Cal absorber | 0.000 | 0.000 | 9.175 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | In cal, J=0..49; '-' for J.lt.25, '+' for J.ge.25 | ||
| Cal0X | 0.000 | 0.000 | 8.925 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | Y | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 8.725 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal0Y | 0.000 | 0.000 | 8.475 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | X | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 8.275 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal1X | 0.000 | 0.000 | 8.025 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | Y | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 7.825 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal1Y | 0.000 | 0.000 | 7.575 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | X | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 7.375 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal2X | 0.000 | 0.000 | 7.125 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | Y | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 6.925 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal2Y | 0.000 | 0.000 | 6.675 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | X | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 6.475 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal3X | 0.000 | 0.000 | 6.225 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | Y | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 6.025 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal3Y | 0.000 | 0.000 | 5.775 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | X | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 5.575 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal4X | 0.000 | 0.000 | 5.325 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | Y | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 5.125 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal4Y | 0.000 | 0.000 | 4.875 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | X | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 4.675 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal5X | 0.000 | 0.000 | 4.425 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | Y | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 4.225 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal5Y | 0.000 | 0.000 | 3.975 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | X | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 3.775 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal6X | 0.000 | 0.000 | 3.525 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | Y | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 3.325 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal6Y | 0.000 | 0.000 | 3.075 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | X | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 2.875 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal7X | 0.000 | 0.000 | 2.625 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | Y | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 2.425 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal7Y | 0.000 | 0.000 | 2.175 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | X | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 1.975 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal8X | 0.000 | 0.000 | 1.725 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | Y | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 1.525 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal8Y | 0.000 | 0.000 | 1.275 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | X | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 1.075 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal9X | 0.000 | 0.000 | 0.825 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | Y | -24.5+/-0.045+J | |
| Cal absorber | 0.000 | 0.000 | 0.625 | Tungsten (51 cm square with thickness reduced to 2 mm in outer 0.5 cm frame) | 19.270 | 0.350 | |||
| Cal9Y | 0.000 | 0.000 | 0.375 | Plastic scintillator ribbons (50.3 cm long, 1 cm wide) | 1.032 | 0.050 | X | -24.5+/-0.045+J | |
| Cal Bottom Plate | 0.000 | 0.000 | 0.175 | Carbon/epoxy composite | 1.387 | 0.350 | |||
| Note: This is a working version and information is not guaranteed to be accurate | |||||||||