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:

Drawings (.ps)	Description	Date	Status
252070P3	Axonometric view of module mounting	07/11/97	obsolete
252072P3	End view of module mounting	07/11/97	obsolete
252045P3	Details for -20mrad stereo modules	01/10/97	obsolete
252047P3	Details for +20mrad stereo modules	02/10/97	obsolete
252124P3	3 point module mounting.	16/04/98	valid

Click here to see the 10 array mock-up (pictures)

 SCT Cylinder prototype:

Drawings (.ps)	Description	Date	Status
RAL TB-0035-242-00-C	Prototype cylinder	27/03/97	valid
Specification (.ps)	Description	Date	Status
EP-13746/PPE	Technical specification	05/11/96	valid*
EP-13746/PPE	Modification of tech spec	01/04/97	valid

Click here to see the cylinder prototype pictures

• Only valid with modification dated 01/04/97

SCT Barrel Geometry:

In the following table, you will find the current geometry drawings relative to the four barrels.

 

Drawings (.ps)	Description	Date	Status
252205P3	Barrel 3: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/+40mrad orientation	19/08/98	valid baseline
252206P3	Barrel 4: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/+40mrad orientation	19/08/98	valid not selected
252207P3	Barrel 5: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/+40mrad orientation	19/08/98	valid base line
252208P3	Barrel 6: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/+40mrad orientation	19/08/98	valid not selected
252209P3	Barrel 3: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/-40mrad orientation	19/08/98	valid not selected
252210P3	Barrel 4: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/-40mrad orientation	19/08/98	valid base line
252211P3	Barrel 5: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/-40mrad orientation	19/08/98	valid not selected
252212P3	Barrel 6: Silicon layer hermeticity (1GeV/c tracks) Assuming Z/-40mrad orientation	19/08/98	valid base line
252215P3	Barrel 3: Silicon layer hermeticity (radial tracks) Assuming Z/+40mrad orientation	26/08/98	valid base line
252216P3	Barrel 4: Silicon layer hermeticity (radial tracks) Assuming Z/+40mrad orientation	26/08/98	valid not selected
252217P3	Barrel 5: Silicon layer hermeticity (radial tracks) Assuming Z/+40mrad orientation	26/08/98	valid base line
252218P3	Barrel 6: Silicon layer hermeticity (radial tracks) Assuming Z/+40mrad orientation	26/08/98	valid not selected
252219P3	Barrel 3: Silicon layer hermeticity (radial tracks) Assuming Z/-40mrad orientation	26/08/98	valid not selected
252220P3	Barrel 4: Silicon layer hermeticity (radial tracks) Assuming Z/-40mrad orientation	26/08/98	valid base line
252221P3	Barrel 5: Silicon layer hermeticity (radial tracks) Assuming Z/-40mrad orientation	26/08/98	valid not selected
252222P3	Barrel 6: Silicon layer hermeticity (radial tracks) Assuming Z/-40mrad orientation	26/08/98	valid base line

SEQUENCE OF WORK ON SCT BARRELS

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)