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Inner tracker integration completion: - Assembly and cabling - Temperature and magnetic field sensors - Shells closing and flanges mounting - Tooling Preparations for pre-integration:
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Inner tracker integration completion: - Assembly and cabling - Temperature and magnetic field sensors - Shells closing and flanges mounting - Tooling Preparations for pre-integration: - Test of evaporators (cooling loops) integration + tools - Pre-assembly of outer planes with inner tracker + tools - Cabling issues studies - Jigs for transport and storage at CERN -Tracker configuration for LBBX (TAS) mounting - Integration sequence - Issues to be solved AMS-02 tracker mechanicsstatus of assembly and integration Divic RAPIN, UniGe AMS TIM July 2007
General view of Silicon tracker • 5 planes, 8 layers • Plane 1, layer 1 • Plane 2, layers 2&3 • Plane 3, layers 4&5 • Plane 4, layers 6&7 • Plane 5, layer 8 • 192 ladder modules • 1024 electronic channel/module 200’000 channels Planes are supported by shells and conical flanges. (not shown)
Ladder Assembly (Perugia-Geneva) • ASSEMBLY • ~ 210 ladders build • PHASE 2 hybrid box & legs gluing • EMI SHIELDING ( kapton foil wrapping) • Full test at each step with RA source and noise control
Installation of ladders on support planes (UniGe clean room) Plane 3 being stored (under Nitrogen) Details of fixation on both sides
Assembly of the inner tracker in the Durga jig • Set-up for storage & insertion into the magnet. • Cables must be installed before the supporting shells and extra length must be attached to temporary supports.
Tracker with cables but without closing and supporting shells 384 flat cables from ladders to electronics Temporary storage of cables
Temperature (Dallas) and B-field sensors have been tested before closing of the inner tracker (A.Lebedev and U.Roeser) T-sensors B-field sensor
Tests of integration of cooling loops on outer plane (1) and on inner tracker (top) Cooling loops are fragile and not self supporting. They need to be kept in jigs for fabrication, storage, transport and assembly Complete installation and assembly jig Outer ring assembly and installation jig Inner ring assembly and installation jig
Jigs and support pieces were developed in order to manipulate the plane and to install cables and cooling loop at the same time Outer cooling loop on plane 1
Test integration of the inner cooling loop Real life will be less easy due to dimensions of vacuum tank
Test integration of the inner cooling loop It fits perfectly
Test integration of outer plane on inner tracker (with loops) Jig for cable storage and crane manipulation of outer planes (compatible with loop)
Test integration of outer plane on inner tracker (with loops) Device allowing safe and precise approach of the outer plane for the last 25 mm. Guiding spacers to prevent damaging contacts between ladders and conical flange during approach of the outer plane.
Study of cabling related issues Tracker feet regions Star tracker support region
Inner tracker support for storage and transportation (AMS01 test beam frame) The present state of the tracker (no loops, both outer planes mounted) is convenient for LBBX (TAS) adjustment and installation. (not for transportation) Tracker feet regions
TRACKER (MECHANICAL) INTEGRATION SEQUENCE(simplified) • Sequence dictated by topology • Up or upside down position not specified hereafter
Start: four separate boxes Two outer planes with: - cables, loop, LBBX+fibers Inner tracker with: - cables, upper inner loop Lower inner loop
Step 2: four upper feet installation Next: prepare lower conical flange
Step 4: four lower feet installation After this operation, tracker and vacuum case can be rotated
From this step, TOP and BOTTOM operations are independent Step 5: unfold and secure cables(and remove supports) Prepare lower inner loop
Step 6: Install lower inner loop Next: outer planes
Step 7: unfold and secure cables(and remove supports) Connect to crates
Next operations and open issues • Cooling loop modification + new connectors (Splinter meeting this TIM) • VC metrology (Splinter meeting this TIM) • Balcony design (already started by F.Cadoux) and production (TBD). • Detailed cable routing (in progress) • LBBX installation (WW during August). • Containers for outer planes and covers for inner tracker frame (UniGe) • Outer planes: Installation of cooling loop, cables and test (UneGe • Light tightness (UniGe) • Revision and completion of detailed procedures (E.P. and D.R.)
Conclusion of the April 2007 TIM presentation of D.R. Near future integration operations at UniGe • Design of storage and transport jigs for inner tracker and outer planes (re-use of Alu frame used for AMS01 beam test) (in progress) • Design and construction of outer plane installation jig. • Supporting shells installation and remove inner tracker from Durga. • Pre-assembly of inner evaporator on inner tracker (check mountability). • Pre-assembly of outer planes (check mountability) on inner tracker. • Time requested by TAS for laser beam alignment/installation. • Orbital welding of new connectors is needed for upper/lower inner/outer evaporators (on critical path)