ams-02 tracker mechanics status of construction, assembly, integration ladder assembly ladder...
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AMS-02 tracker mechanicsstatus of
construction, assembly, integration
•Ladder assembly•Ladder installation on planes•Integration details, cooling loop, star tracker•Safety issues•Tracker assembly•Schedule
Divic RAPIN, UniGe
Summary of contributions from:M. Paniccia, M. Ionica, F. Da Silva, E. Perrin, B. Verlaat, C. Gargulio
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
Ladder Assembly Status (Perugia-Geneva)
• ASSEMBLY• ~ 200 ladders build• 1 ladder still to be assembled• 4 ladders to be repaired
• PHASE 2 hybrid box & legs gluing
• ~ 7 ready for process
• EMI SHIELDING ( kapton foil wrapping)• ~ 38 ready for processs
• Full test at each step with RA source and noise control
Installation of ladders on support planes
• Ladders are installed on both sides of the 3 inner planes.
• 5 over 6 layers are fully equipped with ladders
• Inner part of the tracker soon completed.
Ladders on plane 4
Installation of ladders on support planes
Plane 3 being stored (under Nitrogen)
Details of fixation on both sides
AMS-02 Tracker - Plane 2
July 21, 2005
Ready To be Integrate
Integrated
L07PI002
L09GI006
L14AI031
L09GI003
L10PI005
L10GI014
L11GI004
L11GI009
L11GI016 L09GI013 L09GI010
L14AI042
L07PI004
L11GI008 L12AI001
L12AI004
L12AI006
L12AI003
L12AI005
L12AH024 L12AH057
L12AH029
L12AJ021
L12AJ051
L10PI008
L14AI044
L12AJ054
L12AJ055
L10PI001
L09GI002
L11AI126
L11AI140 L12AJ033
L11SI176
L12SH169
L12AH058
L14AI032
L09AI139 L09GI011
L11AI127
L09SI164
L12AI012
L12SI167
L12AJ038
L12SI182L12SI182
L12AI016
Before phase 2 at Perugia
Last inner layer close to completion
Installation of ladders on support planes
Thermal bars installed on external planes
AMS-02 Tracker - Plane 5
July 19, 2005
ON PHASE-2
READY TO BE SHIELDED
ASSEMBLY COMPLETED
L10AO144
L15AN117
L12AO105 L10AO147
L14AO119
L13AO074
L13AO073
L15AP112 L15AP098
L15AP110 L15AN118
L14AO120 L15AO093
L15AO097
L15AO095 L14AO122
L14AO124 L13AO111
L12AO106 L10AO148 L10AO145
L14AO157
L14AO121 L13AO072 L11AO155
L15AO116
L15AO162
L15AO115
L15AO096
L11SO165
AMS-02 Tracker - Plane 1
July 21, 2005
ON PHASE-2
READY TO BE SHIELDED
ASSEMBLY COMPLETED
L12AO107
L15AN100
L15AN101
L13AO114
L15AN113
L10AO146 L10AO150
L13AO025 L14AO160
L15AP099
L15AP109
L13AO026
L14AO158
L15AO173 L15AO174
L15AO175
L13AO071
L14AO159
L14AO156 L14AO123 L14AO125 L15AO163
L11AO153
L10AO151 L10AO149
L12SO181L12SO181
L15SO180L15SO180
L15AO177
L11AO154
L15SO178
ON PRODUCTIONON PRODUCTION
STAND BY
ON REPARATION
TTCS Evaporator Production TTCS Evaporator Production StatusStatus
B. Verlaat & M. Van OverbeekB. Verlaat & M. Van Overbeek
NIKHEF, 14 October 2005NIKHEF, 14 October 2005
Evaporator is split with hydraulic connectorsInner ring
Outer ring
Intermediate Connectors
In & Outlet Connectors
July 2005: 2 Inner rings are produced!
Inner ring under production
Bending tool details
Soldering set-up
Inner ring production
results
Copper block details
Complete inner ring
Outer Ring Assembly and soldering jig
Outer Ring Details
Outer ring under production
Evaporator clamps in Tracker
structure
Inlet and outlet tube clamp
Inner ring central clamp
1) Bolt analysis was made by ISAtec and A.Alvino. ==> We need better quality bolts for some cases: One junction (tracker feet tracker) deserves more attention and will be discussed on Wednesday splinter meeting.
2) Tracker fastener list and back off prevention method:Submitted to Jacobs. Update needed for structural fasteners.Back-off prevention clear - Two cases:
i) Contained small fasteners : Vibratiteii) Other fasteners: Mylar patch or self locking insert
3) Fracture of composites: Memo submitted to Jacobs.
4) Material list: Delivered to Jacobs Some issues: - Some Al alloy plates to be surface treated in-situ - A few components are prone to stress corrosion
Safety issues
Dry assembly of shells-planes was made before installation of ladderson planes.
…it continues with the new conical flange and the external planes…
Tracker assembly at Uni-GE
Dry assembly continues:- Star tracker lower support to upper conical flange.
- P1 to top conical flange- P5 to bottom conical flange.- Spl brackets for evaporators
Dry assembly continues:
-Star tracker lower support to upper conical flange.-Two pieces of the camera support to upper plane and upper flange
Assembly of the inner tracker at UniGe• Proposed set-up for
storage & insertion into the magnet.
• The various lengths of the cables were calculated. Cables are in UniGe
• Cables must be installed before the supporting shells.
• Extra length must be attached to temporary supports.
Tracker assembly at Uni-GE
Modifications can start:- Remove / reposition telescopic supports for inner planes.- Build adapters for conical flanges- Define plane transfer method==> By hand ?==> With a lifter ?
The ETHZ Frankenstein machine has been moved to UniGe
Assembly scheduleInner Tracker assembly can start as soon as :- The three inner planes are ready for assembly ~End of November
Delayed because of a missing ladder- The modifications to Conical flanges / Shell are made (if needed)- The Star Tracker lower supports are bonded to the top conical flange- The fasteners are available
Assembly sequence - Transfer the 3 inner planes into the « Frankenstein » in order P2, P3 and P4- Transfer the conical flanges into the « Frankenstein » - Position planes and connect thermal connectors- Mount cable support structure- Mount and connect cables on ladders of three external rows +Y and -Y- Mount the two 100° shell sectors- Mount and connect all other cables- Mount the two 80° shell sectorsInner Tracker assembly ==> Duration ~2.5 months
~End February2006 if assy starts early December
P5 completed with ladders ~Mid February 2006
P1 completed with ladders ~End of March 2006
(Test are not accounted for )
Still a lot of things to finalize / to do for the assembly of the Inner Tracker:- Procure fasteners which need to be replaced
- Shopping list for next TIM- Light tightness at exit of conical flange / around the feets- Mesh on light traps- Bond Star tracker lower support- Cable clamps- Structure to support cables- Container for Inner Tracker.- Etc...
Further assembly steps / parts needed- Re-do some bracketry for evaporators in two parts - Mount outer evaporator rings to P1 and P5- Modify outer plane containers to be compatible with evaporators
For integration- Inner Tracker handling gear- Installation jig for Inner evaporator (design A. Alvino) - Cable « paddle » and clamps on Vacuum case (design A. Alvino) - Cable balcony for Tracker crates.
Miscellaneous- Prototype condenser- Parts for heat exchanger
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