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