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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.

Beampipe:

The beampipe is composed of three sections: consists of a cylindrical central tube and forward and /backward conical sections.
The   The 0.040cm thick Beryllium central tube has an inner radius of 1.2cm and a z extent of +/- 6.25cm and is made of .040cm thick Beryllium.
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.
The  A titanium liner on the inner surface of the beam pipe has consists of a titanium inner liner 0.0025cm thick for the central barrel section and 0thick cylinder and 0.0075cm thick for the conical thick conical sections.

Vertex Detector:

The vertex detector is composed of a central barrel system with five layers and forward systems composed of four disks.

Barrels 

The barrels are all 12.5cm long and are composed are composed of .0113cm thick Silicon, of which the outer .002cm is sensitive.
The inner radii of the layers are:

1.46cm, 2.26cm, 3.54cm, 4.80cm, and 6.04cm

Sensors are mounted on 13.5cm long support cylinders made of 0.0065cm thick carbon fiber (25% coverage of 0.026cm thick CF).
The cylinders attach to 0.0065cm thick carbon fiber bulkheads that span 1.45cm<r<6.04cm located at |z|=6.75 cm.
The vertex detector supports are 0.0427cm thick carbon fiber cylinders that span 1.45cm<r<16.953cm located at |z|=6.78cm.

Readout electronics and the radial cabling are modeled as disks at the ends of the sensors.
At the ends of each sensor layer are G10 rings with a radial thickness of 0.2cm and a thickness in z of 0.498cm.
The rings have an inner |z| position of 6.25cm and the inner radii are the same as the sensors.
Radial cables are modeled as Cu disks with an inner |z| of 6.90cm and radial spans and thicknesses given by the following table:

, with the following inner radii and |z| extants:

Sensors are supported by cylinders made of 0.026cm thick carbon fiber with 25% coverage.

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.

Disks

There are four forward There are four forward disks on either end, composed of a total of .0113cm of silicon, of which the inner .002cm is sensitive.
All of the disks extend to a maximum radius of 7.5cm.
The innner  The radial extant and inner |z| positions and inner radii for the four disks are:

The forward disks are supported by disk supports are 0.0065cm 026cm thick carbon fiber (25% coverage of 0.026cm thick CF) that are located 0.02cm behind the inner face of the sensors and extend from the inner disk radius to an outer radius of 16.953cm.

Forward disk readout electronics and cables are modeled as having an inner and outer part.
The inner part consists of G10 rings of 0.1cm thickness in radius and 0.2mm thickness in z that are located radially just inside the sensors and begin 0.1cm in front of the inner sensor plane.
The outer part consists of G10 rings of 0.5cm thickness in radius and 0.2mm thickness that are located radially just outside the sensors and begin 0.2cm in front of the inner sensor plane.

Cables and services are in 3 parts.
The inner cables are 0.012cm thick and run conically from an inner radius of 1.32cm at |z|=6.9cm to 1.455cm at |z|=10.0cm.
Service material of thickness 0.3cm runs conically from an inner radius of 1.455cm at |z|=10cm to 1.542cm at |z|=12cm.
The outer cables are parallel to the conical beam pipe and flare from a thickness of 0.010cm at an inner radius of 1.542cm at |z|=12cm to a thickness of 0.004cm at |z|=167.9cm.

The entire vertex detector is enclosed within a 200cm long double walled carbon fiber support tube.
The support tube walls have inner radii of 16.954cm and 18.434cm and are 0.0427cm thick.
The ends of the support tube double-walled disks of 0.0427cm thick carbon fiber disks that span 5.5cm<r<16.953cm and are located at |z|=97.5cm and |z|=99.74cm.

Tracker:

The tracker is composed of five cylindrical barrels with four disk-shaped endplanes. The z extent of the barrels increases with radius and the endplane for each extends beyond its cylinder in radius to provide overlap. The sensitive medium is silicon, assembled into carbon-fiber/Rohacell/PEEK modules and read out via a bump-bonded chip and Kapton/Copper cables. These modules are supported by carbon-fiber/Rohacell/carbon-fiber barrels or disks. Each barrel cylinder is supported from the next barrel out by an annular carbon fiber-ring. Outside each of these support rings in z, G10/Copper printed circuit boards are mounted for power and readout distribution to all silicon modules in a layer.

Barrels:

The radii and |z| extent of the barrel silicon are:

The estimated material thickness for modules, silicon, readout, and cables are averaged over the barrel and are given by:

The barrel support cylinders are composed of .025cm CarbonFiber, 0.8cm of Rohacell31 and 0.025cm CarbonFiber. The inner radii and |z| extent are given by:

Endcap:

) disks located as follows:

Readout Electronics and Cables 

For the barrel, readout electronics are modeled as G10 rings that are currently located outside the support membrances:

Forward disk readout electronics are modeled as inner and outer rings, both made of G10:

Barrel cables first are brought radially down to the beam pipe.  These radial cables are modeled as Cu disks:

 The remaining cable and service materials are located along the beam pipe. Inner cables are 0.012cm thick copper and run conically from an inner radius of 1.32cm at |z|=6.9cm to a radius of 1.455cm at |z|=10.0cm.  Service material is 0.3cm thick G10 that runs conically from an inner radius of 1.455cm at |z|=10cm to 1.542cm at |z|=12cm. Outer cables are modeled as copper that flares from a thickness of 0.010cm with an inner radius of 1.542cm at |z|=12cm to a thickness of 0.004cm with an inner radius of 8.310cm at |z|=167.9cm.

Support Tube 

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 located as follows:

Tracker:

The tracker is composed of five cylindrical barrels with four disk-shaped endplanes. The z extent of the barrels increases with radius and the endplane for each extends beyond its cylinder in radius to provide overlap. The sensitive medium is silicon, assembled into carbon-fiber/Rohacell/PEEK modules and read out via a bump-bonded chip and Kapton/Copper cables. These modules are supported by carbon-fiber/Rohacell/carbon-fiber barrels or disks. Each barrel cylinder is supported from the next barrel out by an annular carbon fiber-ring. Outside each of these support rings in z, G10/Copper printed circuit boards are mounted for power and readout distribution to all silicon modules in a layer.

Barrels:

The radii and |z| extents of the barrel silicon layers are:

The estimated material thickness for modules, silicon, readout, and cables are averaged over the barrel and are given by:

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:

The barrels are supported by 0.05cm thick carbon fiber (15% coverage) rings:

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.

Each A plane has the following material thicknesses:

Each B plane has the following material thicknesses:

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:

Services

The readout and power distribution boards are mounted on the outside surfaces of the barrel support rings. The regions occupied by these boards and the average thickness of the material they represent are given by:

Note that in layer five, due to the constraints of the calorimeter, the readout boards are not mounted on this annular ring, but rather at smaller radius.

Forward Disks

There are also three forward disks composed of double-sided sensor modules to measure coordinates in two viewsThe forward disks have two sensors per layer that are slightly displaced in |z|. The table below shows the radial extant of the disks and the inner |z| position for the "A" and "B" sensor planes.

Each A plane has the following material:

where each layer is composed of double-sided sensor modules to measure coordinates in two views. The forward disk supports are composed of .039cm CarbonFiber, 1.2cm Rohacell31 and 0.039cm of CarbonFiber. The sensor modules mounted outside of the disks are double-sided and have 0.03cm of silicon mounted on either side of CarbonFiber/Rohacell31 frames that clip into PEEK (Polyetheretherketone) mounts. The average thickness of the CarbonFiber, Rohacell31 and PEEK in the modules of each disk double-layer is assumed to be the same as that for the barrel modules. The average thicknesses of the readout material are also assumed to be the same, but are repeated on both sides of the modules for double-sided readout.

The the z-positions and radial extents of the annular support rings that complete the structure of the tracker are:

These rings are composed of 0.15cm thick CarbonFiber. The readout and power distribution boards are mounted on the outside surfaces of these support rings. The regions occupied by these boards and the average thickness of the material they represent are given by:

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 Each A Plane has the following material thicknesses:

Each B Plane has the following material thicknesses:

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:

Calorimeters:

Electromagnetic Calorimeter:

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