Goddard Space Flight Center Cryogenics and Fluids Branch

Status of the AMS-02 Cryocooler

January 2007 TIM

January 2007 AMS-02 TIM 2

Goddard Space Flight Center Cryogenics and Fluids Branch

Compliant Mount Design

• Waiting for final design approval– By NASA GSFC’s Mechanical Systems

Analysis Group

• Starting Qualification Plan– Component Static Pull Test

• Completed pre-test NDE

• Component test scheduled for mid Jan

– Assembly Vibe Test on an FM cooler• Working Pre-test analysis

• Assembly test scheduled for late Jan – early Feb

January 2007 AMS-02 TIM 3

Goddard Space Flight Center Cryogenics and Fluids Branch

Cryocooler Electronics

• Electronics meeting – Held at ETH Zurich following October 2006 TIM

– Review/demonstration of overall system

– Discussion of testing to be completed at GSFC• Verify multiple drive design

• Extended, uninterrupted runtime of electronics with FM coolers

• GSFC Electronics work– CCEB-EM1 anticipated arrival at GSFC March 2007

– Verify safe-to-mate by testing drive design & software with simulated loads & EM cooler

– Verify compatibility with 4 FM coolers

January 2007 AMS-02 TIM 4

Goddard Space Flight Center Cryogenics and Fluids Branch

Integration

• Formulating integration procedures and drawings– Cooler bracket integration to vacuum case

– LHP integration

– Balancer removal and integration (pre/post shipping to satisfy keep-in-zone)

– Electrical connector interface drawing

• Identifying shipping configuration & requirements

January 2007 AMS-02 TIM 5

Goddard Space Flight Center Cryogenics and Fluids Branch

Program Status Summary

• EM cooler– Continue life testing and thermal performance verification– Test with ETH flight electronics

• FM coolers– Preparing for tests with ETH flight electronics

• Compliant mount– Component test scheduled for Jan 07– Assembly vibration test on FM cooler scheduled for Jan 07 – Feb 07– Integrate with FM coolers

• Delivery schedule– FM coolers available after electronics work, beginning of July 2007