MECHANICS GROUP ACTIVITIES:
General activities of the group include the design and manufacture of scientific equipment. The group uses the EUCLID 3D CAD package for design/drawing, has its own workshop and can use the clean room facilities of the dpnc for typical silicon detector assembly activities.
Warning: The SCT barrel design is in constant evolution, any user of the following information should carefully check its validity before use. (contact person: Eric Perrin)
SCT Barrel:
Activity focuses on the cylinder structure and the method of mounting the SCT modules onto these cylinders.
Proposed mounting scheme:
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Description |
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Axonometric view of module mounting |
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End view of module mounting |
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Details for -20mrad stereo modules |
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Details for +20mrad stereo modules |
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3 point module mounting. |
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Click here to see the 10 array mock-up (pictures)
SCT Cylinder prototype:
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Description |
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RAL TB-0035-242-00-C |
Prototype cylinder |
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Description |
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Technical specification |
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Modification of tech spec |
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Click here to see the cylinder prototype pictures
SCT Barrel Geometry:
In the following table, you will find the current geometry drawings relative to the four barrels.
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Description |
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Barrel 3: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/+40mrad orientation |
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baseline |
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Barrel 4: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/+40mrad orientation |
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not selected |
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Barrel 5: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/+40mrad orientation |
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base line |
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Barrel 6: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/+40mrad orientation |
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not selected |
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Barrel 3: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/-40mrad orientation |
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not selected |
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Barrel 4: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/-40mrad orientation |
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base line |
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Barrel 5: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/-40mrad orientation |
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not selected |
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Barrel 6: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/-40mrad orientation |
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base line |
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Barrel 3: Silicon layer hermeticity (radial tracks) Assuming Z/+40mrad orientation |
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base line |
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Barrel 4: Silicon layer hermeticity (radial tracks) Assuming Z/+40mrad orientation |
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not selected |
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Barrel 5: Silicon layer hermeticity (radial tracks) Assuming Z/+40mrad orientation |
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base line |
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Barrel 6: Silicon layer hermeticity (radial tracks) Assuming Z/+40mrad orientation |
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not selected |
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Barrel 3: Silicon layer hermeticity (radial tracks) Assuming Z/-40mrad orientation |
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not selected |
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Barrel 4: Silicon layer hermeticity (radial tracks) Assuming Z/-40mrad orientation |
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base line |
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Barrel 5: Silicon layer hermeticity (radial tracks) Assuming Z/-40mrad orientation |
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not selected |
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Barrel 6: Silicon layer hermeticity (radial tracks) Assuming Z/-40mrad orientation |
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base line |
The sequence is an attempt to list all operations foreseen in the cylinder manufacture, barrel assembly and the assembly of the four barrels together.
Report on Feasibility of 0° Tilt Angle in the SCT Barrel
Pages updated 1/02/99 (Gerard Barbier)