This is a version an approximation of the Large Detector modelled as of Oct. 1, 2005. LDC01Sc detector in Mokka. The compact description of this detector in xml format can be found at http://www.lcsim.org/detectors/ld3ldc01app.1-oct05.zip . What follows is a plain text description of the file compact.xml found in this zip file.
The tracking region is defined to be a cylinder with radius 175158. cm and z extent +/- 282229.95 cm.
Beampipe:
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The beampipe consists of cylinders and cones of Be and Fe. The inner radius of the central Be beampipe is 1 cm. A beam vacuum is defined inside the beampipe.
Luminosity Monitor:
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The luminosity monitor is NOT included
Vertex Detector:
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The vertex detector is composed of a central barrel system with five layers.
The first barrel layer is 10 cm long and the rest are 25. cm long, and are composed of 0.028 cm Beryllium and a .0005 00375 cm Silicon slice which is sensitive.
The inner radii of the layers are:
1.55, 2.7, 3.8, 4.9, 6.0
Strip lines, electronics and supports are included
Tracker:
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The intermediate tracker is composed of two barrels composed of 0.05616 03 cm of silicon.
The inner radii and z extent of the two barrel layers are:
z | inner radius | |
|---|---|---|
38. | 16. | |
29 66. | 30. | 63. |
The small angle endcap tracker is composed of 5 double sided disks of 7 disks with sensitive slices of 0.03 cm dense silicon, 8.72 g/cc.
The position and size of the disks are:
z | inner radius | outer radius |
|---|---|---|
20.0 | 3.8 | 14.0 cm |
32 30.0 | 4.0 8 | 25 14.0 cm 65 |
44. 0 | 7 5.9 | 30 21.0 cm |
120 55. | 11 6.8 | 30 27.0 cm |
180 80. | 15 9.6 0 | 30 29.0 cm |
105.0 | 11.1 | 29.0 cm | |||
130.0 | 13.2 | 29 | 240. | 18.9 | 30.0 cm |
The central TPC tracker consists of a 250 a 394 cm long, 161.8 158 cm radius sensitive volume filled with P10 gas.
The inner and outer carbon-fiber field cages are at radii of 32. and 161.8 cm.Ar.
The forward TPC endcap tracker consists of a double-sided disk disks with sensitive slices of 0.03 cm silicon at
z = 279 220 cm with inner and outer radii of 26 and 185 of 30.5 and 149 cm.
Calorimeters:
Electromagnetic Calorimeter:
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The inner radius for the barrel is 175 160 cm.
The EM calorimeter is a sampling calorimeter composed of 20 layers of
material | thickness |
|---|---|
Tungsten | .250cm 21cm |
G10 | .068cm 16cm |
Silicon | .032cm 05cm |
Air | .025cm 08cm |
follow by 10 additional layers with 0.5 42 cm Tungsten.
The z extent of the barrel cylinder is +/- 275 220 cm.
The endcap starts at an inner radius of 26 of 30 cm and extends out to 185 179 cm.
Hadron calorimeter:
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The hadron calorimeter is a W a Fe scintillator sampling calorimeter composed of 50 40 layers of
material | thickness | ||
|---|---|---|---|
Tungsten Iron | 0 1.75 cm 8 cm | ||
Polystyrene | 0.5 65 cm | ||
|
| G10 | 0.25 cm |
The barrel inner radius is 195 180 cm with a z extent of +/- 275 220 cm.
The endcap extends from an inner radius of 26 of 30 cm to an outer radius of 260 247 cm.
Solenoid:
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The solenoid is modelled as a cylinder with an inner radius of 250cm. This is larger than the outer radius of the hadron calorimeter since we will not be building a cylindrical detector, but a polygonal one (current thinking is octagonal). The barrel composition is as follows:
material | thickness | z |
|---|---|---|
Steel | 6.0cm | 360 cm |
Air | 8.5cm | 360 cm |
Aluminum | 39.3cm 340 cm | |
Steel | 6.0cm | 340 cm |
Air | 20.0cm | 360 cm |
Steel | 3.0cm | 360 cm |
This is capped with disk endplates of 6cm steel from r=294.5 cm to 339.8 cm.
Solenoid is NOT modeled. However the Field is, at a constant Bz of 4 Tesla.
MuonMuon System:
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The muon system is implemented as a sampling calorimeter composed of 48 layers of:
material | thickness |
|---|---|
Iron | 5.0 cm |
G10 | 0.3 cm |
PyrexGlass | 0.11 cm |
RPCGas | 0.12 cm |
PyrexGlass | 0.11 cm |
Air | 0.86 cm |
The barrel inner radius is 380 cm with z extent of +/- 375 cm.
The endcap sits outside the barrel at an inner z of 380 cm and radius from 26 cm to 690 cm.
The field is solenoidal, constant 4 Tesla along z up to half the coil thickness and -0.6 outside.
does not exit.
Masks and far forward detectors are NOT implementedMasks and far forward detectors remain to be implemented.