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This is the version of the Silicon Detector modelled as of November, 2006, post Valencia.
The compact description of this detector in xml format can be found at http://www.lcsim.org/detectors/sid01.zip . What follows is a plain text description of the file compact.xml found in this zip file.
Where a material is listed as xx% coverage, the density of the material has been reduced to xx% of its nominal value to mimic the effect of cutouts in the material.
The tracking region is defined to be a cylinder with radius 126.5cm and z extent +/- 167.9cm.
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The beampipe consists of a cylindrical central tube and forward/backward conical sections. The 0.040cm thick Beryllium central tube has an inner radius of 1.2cm and extends to |z|<6.25cm. The conical sections have a cone half-angle of 43.4mrad with an inner radius that flares from 1.2 cm at 6.25cm to 8.218cm at |z|=167.9cm. The conical sections are 0.0875Cm thick Be for 6.25cm<|z|<37.5cm, where they transition to steel. The thickness of the steel section flares from 0.0875cm at |z|=37.5cm to 0.1992cm at |z|=167.9cm. A titanium inner liner on the inner surface of the beam pipe consists of a 0.0025cm thick cylinder and 0.0075cm thick conical sections.
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Layer | Inner Radius | |z| Extant |
---|---|---|
1 | 1.44cm 43cm | 6.27cm |
2 | 2.24cm 23cm | 6.27cm |
3 | 3.52cm 51cm | 6.27cm |
4 | 4.78cm 77cm | 6.27cm |
5 | 6.02cm 01cm | 6.27cm |
The cylinders attach to 0.026cm thick carbon fiber (25% coverage) bulkheads that span 1.44cm<r<7.16cm and have an inner |z| of 6.27cm. The vertex detector is attached to the support tube by 0.026cm thick carbon fiber (25% coverage) support disks that span 1.44cm<r<16.87cm and have an inner |z| of 6.30cm.
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Layer | Inner Radius | Outer Radius | Inner |z| | Thickness |
---|---|---|---|---|
1 | 1.46cm | 1.66cm | 6.4cm | 0.5cm |
2 | 2.24cm 26cm | 2.44cm 46cm | 6.4cm | 0.5cm |
3 | 3.52cm 54cm | 3.72cm 74cm | 6.4cm | 0.5cm |
4 | 4.80cm | 5.00cm | 6.4cm | 0.5cm |
5 | 6.04cm | 6.24cm | 6.4cm | 0.5cm |
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The entire vertex detector is enclosed within a double walled carbon fiber support tube. The support tube walls are 0.05cm thick carbon fiber with inner radii of 16.87cm and 18.42cm and a |z| extant of |z|<89.48cm. The ends of the support tube double-walled disks of 0.05cm thick carbon fiber disks that span 5.5cm<r<16.87cm and are located at |z|=97.5cm and |z|=99.74cm.disks located as follows:
Wall | Inner Radius | Outer Radius | Inner |z| |
---|---|---|---|
Inner | 4.80cm | 16.87cm | 86.88cm |
Outer | 4.91cm | 16.87cm | 89.43cm |
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Material | Layer 1 | Layer 2 | Layer 3 | Layer 4 | Layer 5 |
---|---|---|---|---|---|
PEEK | 0.02cm | 0.02cm | 0.02cm | 0.02cm | 0.02cm Rohacell31 |
Rohacell31 (50% coverage) | 0.14cm 3cm | 0.14cm 3cm | 0.14cm 3cm | 0.14cm 3cm | 0.14cm 3cm |
Epoxy | 0.0175cm | 0.0175cm | 0.0175cm | 0.0175cm | 0.0175cm |
Carbon Fiber | 0.016cm | 0.016cm | 0.016cm | 0.016cm | 0.016cm |
Silicon (active) | 0.03cm | 0.03cm | 0.03cm | 0.03cm | 0.03cm |
Silicon (dead) | 0.00048cm | 0.00048cm | 0.00048cm | 0.00048cm | 0.00048cm |
Kapton | 0.0038cm | 0.0051cm | 0.0064cm | 0.0078cm | 0.0091cm |
Copper | 0.00038cm | 0.00052cm | 0.00065cm | 0.00079cm | 0.00093cm |
The barrel support cylinders are composed of .05cm CarbonFiber, 0.80cm of Rohacell31 (15% coverage) and 0.05cm CarbonFiber. The inner radii and |z| extent are given by:
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The barrels are supported by 0.05cm thick carbon fiber (15% coverage) rings:
Layer | Inner Radius | Outer Radius | Inner |z| |
---|---|---|---|
1 | 21.5cm | 45.6cm | 57.0cm |
2 | 46.5cm | 70.6cm | 83.6cm |
3 | 71.5cm | 95.6cm | 109.5cm |
4 | 96.5cm | 120.6cm | 135.9cm |
5 | 121.5cm | 126.5cm | 161.7cm |
Endcap:
Each layer is composed of double-sided sensor modules to measure coordinates in two views. The table below shows the radial extant of the disks and the inner |z| position for the "A" and "B" sensor planes.
Layer | Inner Radius | Outer Radius | |z| for A Plane | |z| for B Plane |
---|---|---|---|---|
1 | 20.7cm | 49.4cm | 85.6cm 5cm | 85.8cm 9cm |
2 | 20.7cm | 74.7cm | 111.5cm 4cm | 111.7cm 8cm |
3 | 20.7cm | 99.9cm | 137.9cm 8cm | 138.1cm 2cm |
4 | 20.7cm | 125.0cm | 163.7cm 6cm 163 | 164.9cm 0cm |
Each A plane has the following material thicknesses:
Material | Layer 1 | Layer 2 | Layer 3 | Layer 4 |
---|---|---|---|---|
Silicon (active) | 0.03cm | 0.03cm | 0.03cm | 0.03cm |
Silicon (dead) | 0.00048cm | 0.00048cm | 0.00048cm | 0.00048cm |
Kapton | 0.0051cm | 0.0064cm | 0.0078cm | 0.0091cm |
Copper | 0.00052cm | 0.00065cm | 0.00079cm | 0.00093cm |
PEEK | 0.02cm | 0.02cm | 0.02cm | 0.02cm Rohacell31 |
Rohacell31 (50% coverage) | 0.14cm 3cm | 0.14cm 3cm | 0.14cm 3cm | 0.14cm 3cm |
Epoxy | 0.0175cm | 0.0175cm | 0.0175cm | 0.0175cm |
Carbon Fiber | 0.016cm | 0.016cm | 0.016cm | 0.016cm |
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The endcap supports are disks made of two 0.05cm thick Carbon Fiber planes separated by a 0.63cm thick layer of Rohacell31 (15% coverage). The radial span and inner z coordinate are:
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Layer | Inner Radius | Outer Radius | |z| for A Plane | |z| for B Plane |
---|---|---|---|---|
1 | 2.78cm | 16.67cm | 20.65 40 | 20.85cm 80cm |
2 | 7.51cm | 16.67cm | 54 53.1cm 85cm | 54.3cm 25cm |
3 | 11.65cm | 16.67cm | 83 82.2cm 95cm | 83.4cm 35cm |
Each A Plane has the following material thicknesses:
Material | Layer 1 | Layer 2 | Layer 3 |
---|---|---|---|
Silicon (active) | 0.03cm | 0.03cm | 0.03cm |
Silicon (dead) | 0.00048cm | 0.00048cm | 0.00048cm |
Kapton | 0.0038cm | 0.0038cm | 0.0038cm |
Copper | 0.00038cm | 0.00038cm | 0.00038cm |
PEEK | 0.02cm | 0.02cm | 0.02cm |
Rohacell31 (50% coverage) | 0.14cm 3cm | 0.14cm 3cm | 0.14cm 3cm |
Epoxy | 0.0175cm | 0.0175cm | 0.0175cm |
Carbon Fiber | 0.016cm | 0.016cm | 0.016cm |
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The forward disk supports are disks made of two 0.05cm thick Carbon Fiber planes separated by a 0.35cm thick layer of Rohacell31 (15% coverage). The radial span and inner z coordinate are:
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