1. Overview of AMS-02 Changes due the addition of the Permanent Magnet
05/04/2010
Joseph Kastelic / ESCG

2. AMS-02 Payload Design Changes due to the addition of the Permanent Magnet.
Major Cryogenic Hardware Removed from the AMS-02 Payload
Superconducting Cryomagnet
Superfluid Helium Tank (SFHe)
Cryogenic Support Hardware Removed from AMS-02 Payload
Onboard Vacuum Pump
Cryomagnet Support Straps (suspension system)
Flight Vacuum case
Cryocooler Loop Heat Pipe (LHP)
SFHe Tank Burst Disk
Vacuum Case Burst Disk
CAB Loop Heat Pipe, accumulators, evaporators
Warm Helium Tank and WHT MMOD.
2500 liters of Liquid/Gas Helium

3. Major Electrical Hardware removed from AMS-02 Payload
CAB (Cryomagnet Avionics Box)
Cryomagnet Dump Diodes (CDD)
Uninterruptible Power Supply (UPS)
Electrical Support Hardware removed from AMS-02 Payload
Baroswitch Electronics (BSE)
RTD Cabling
Charge/Discharge Cabling
Cryomagnet Pilot Valve Switch (CPVS)(Magic Box)
OBP (Onboard Pump) Cabling from IPA
CCEB electronics (Leave Box On)
Components of the Tracker Alignment System
Major Thermal Hardware Removed from the AMS-02 Payload
Zenith radiator
MLI (Reconfigured for new thermal requirements)

4. Major Hardware Added to Payload
STA Vacuum Case
Permanent Magnet (Inside the STA Vacuum Case)
Permanent Magnet Support Structure (Inside the STA Vacuum Case)
Tracker Plane 1N (above TRD)
Tracker Plane 6 added between RICH and ECAL
New TTCS loop for Plane 6
Major Hardware Unaffected by the Change
USS-02
PAS assembly (except envelope)
Grapple fixtures
Debris Shields
ROEU
EVA Connector Panel
Umbilical Mechanism Assembly
Hardware Reconfigured
Electronic Calorimeter (ECAL) moved 35mm
Tracker Plane 1N relocated above TRD.

5. External Parts to be Removed From Payload
Debris Shield, ROEU, and Interface Panel A removed for clarity
Zenith Radiator (Cryomagnet cooling)
Cryomagnet Pilot Valve Switch Box (CPVS)
BSE (Baroswitch)
Cryomagnet Dump Diode (CDD)
Cryomagnet Avionics Box (CAB) and CAB Loop Heat Pipe
Vent Pump
Uninterruptable Power Supply (UPS)
Cryocooler

6. External Parts to be Removed From Payload
Cryocooler
Vacuum Case Burst Disk
SFHe Tank Burst Disks
Warm Helium Tank and MMOD Shield
Cryocooler

7. Superconducting Cryomagnet and external Cryogenic Hardware.
Most will be removed from the AMS-02 Payload
4 Cryocooler
Burst Disk
Warm Helium Tank and MMOD Shielding
Various Tubes. Fittings, Valves, etc. to be removed.

8. Cryomagnet Vacuum Case Internal Hardware that will be removed
Helium tank
Sixteen Support straps (magnet suspension system)

9. STA Vacuum Case to be Configured for Fight with permanent Magnet

10. Permanent Magnet originally flow on STS-91 June1998
Mounts to structure with bolts and shear pins in 8 locations on the cylinder and 4 places on each flange
Top flange (structural)
Bottom Flange (structural)
Magnet material core (non-structural)

11. STA Vacuum Case with Permanent Magnet
Support Struts (16) (Titanium Alloy)
Permanent Magnet
Aluminum X Structure 7075-T7351
VC Upper and Lower Support rings
Top View :Struts (exactly along Original Action Line)
Conical flanges and Outer Cylinder not shown

12. Outer Support Structure with 4 Identical Structures
STA Vacuum Case with Permanent Magnet
Outer Support Structure with 4 Identical Structures
All Joints: Bolted and Shear Pin
Clevis and Spherical Bearing Joint
Titanium Strut
VC attachment Fitting
AMS02 Permanent Magnet

13. Vacuum Case with PM Cross Section
Upper Conical Flange
Lower Conical Flange
Permanent Magnet
Outer Cylinder
Upper Support Ring
Lower Support Ring
Permanent Magnet X-Structure

14. Vacuum Case with PM Installed in the AMS-02 Unique Support Structure
STA Shown Installed in Pre-Integration Activities

15. AMS-02 Tracker Assembly (Reconfigured)
Tracker Design Prior to PM
Tracker was Contained within the inner bore of the Vacuum Case
Tracker Assembly

16. Original Configuration Plane 5 will be moved to the top of the TRD
Tracker Consist of 5 Planes of Carbon Fiber and 8 layers of Silicone
Plane 1: Layer 1
Plane 2: Layer 2 and 3
Plane 3: Layer 4 and 5
Plane 4: Layer 6 and 7
Plane 5: Layer 8
Original Configuration
Plane 5 will be moved to the top of the TRD
Relocated Plane 5 or Plane 1N
New Tracker Plane 6 Layer 9
Tracker Plane P9 will be made from parts taken from layer 8, layer 1, and spares.

17. AMS-02 Experiment Core and Tracker Assembly Reconfigured
Transition Radiation Detector (TRD)
Electronic Calorimeter (ECAL)
Ring Image Cherenkov Counter (RICH)
Silicone Tracker

18. Honeycomb Support Structure with CF face sheets
Plane 1N Configuration
TRD
Silicone layer
Carbon Fiber Plane 1N
Honeycomb Support Structure with CF face sheets
Plane 1N
TRD
Plane 1N will include MLI and debris containment.

19. AMS-02: Upper TRD Cover with Plane1N Support
Plane1N Support Structure
TRD
Unique Support Structure (USS)
Permanent Magnet Assembly

20. AMS-02: Upper TRD Cover with Plane1N Support
Plane1N Support Structure shown translucent
Plane 1N

21. AMS-02: Upper TRD Cover with Plane1N Support
Silicon Layer
Honeycomb Support Structure with CF face sheets

22. AMS-02: Upper TRD Cover with Plane1N Support
Silicon Layer
PlatenN
Plane1N Support

23. New Tracker Plane 6 Layer 9
New Tracker Plane will be located between the ECAL and the RICH Assembly
The ECAL will be lowered by 35mm giving room for the new plane
Tracker
Lower Time of Flight
The empty space from Plane 5 will be replaced with a dummy plane
Plane 6 will include MLI and debris containment.

24. New Tracker Plane 6 Layer 9
Tracker Plane Mounting Hardware. Interfaces Existing ECAL Mounting Locations
ECAL
Silicone Layer
Carbon Fiber Plane

25. New Tracker Plane 6 Integrated
New Cooling Loop

26. New Tracker Plane Cooling Loop
Tracker Plane Cooling Loop (TTCS)
Loop for Plane 6 (Evaporator)

27. Capture Bar Clearance issue due to the lowering of the ECAL
Passive PAS
Capture Claw Clearance Envelope ISS Keep out zone
The Configuration prior to lowering the ECAL
AMS-02
Active Common Attach System (CAS)
Capture Claw

28. Lowering The ECAL 35mm produces a violation of the Capture Claw Envelope of 19mm
There is no known impact of the envelope violation that concerns AMS-02
Nominal Clearance to Claw 24mm

29. MLI
Considerable MLI changes are anticipated. Some will be eliminated and others will be added.
Ram
Wake
Starboard Side of Payload

30. MLI
Considerable MLI changes are anticipated. Some will be eliminated and others will be added.
Ram
Wake
Port Side of Payload

31. AMS-02 Hardware that will not be changed
USS-02 Assembly (Primary Structure)
Payload Attach System (PAS)
Umbilical Mechanism Assembly (UMA)
Power and Video Grapple Fixture (PVGF)
EVA Handrails
Port Debris Shield

32. AMS-02 Hardware that will not be changed
Remotely Operated Electrical Umbilical (ROEU/PDA)
Starboard Debris Shield
Flight Releasable Grapple Fixture (FRGF)
Interface Panel A
USS Handrails
Keel Assembly
EVA Connector Panel
Keel Handrails

33. Backup Slides

35. Parts to be Removed From Payload