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SPIRE & PACS SORPTION COOLERS

SPIRE & PACS SORPTION COOLERS. INSTRUMENT BASELINE DESIGN REVIEW. Lionel Duband, L. Clerc, L. Miquet, L. Guillemet, R. Vallcorba, D. Guillaume, D. Communal, Patrick Dupont/Eric Dubois (BV) SERVICE DES BASSES TEMPERATURES DRFMC / DSM - CEA GRENOBLE. COOLER STATUS - 1. DESIGN : completed

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SPIRE & PACS SORPTION COOLERS

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  1. SPIRE & PACS SORPTION COOLERS INSTRUMENT BASELINE DESIGN REVIEW Lionel Duband, L. Clerc, L. Miquet, L. Guillemet, R. Vallcorba, D. Guillaume, D. Communal, Patrick Dupont/Eric Dubois (BV)SERVICE DES BASSES TEMPERATURESDRFMC / DSM - CEA GRENOBLE

  2. COOLER STATUS - 1 DESIGN : completed (full compatibility with PACS/SPIRE) Mechanical performance : Full numerical modelling done CQM/STM Manufacturing : completed All anomalies dealt with and traced All parts available

  3. COOLER STATUS - 2 CQM & STM Assembling : 90% done STM unit Slight delay due to subcontractors Cooler heart ready for EB welding

  4. GROUND SUPPORT EQUIPEMENT (MAIN) TEST CRYOSTAT (2 "small" cryostats available) New large test cryostat delivered Feb. 2002 Instrumentation in progress (wiring, thermometry, etc..) Needed for performance test (> 48 hours autonomy) CLEAN ROOM : Implementation in progress Expected to be available April 2002

  5. Proof pressure tests (20 MPa) Vibration tests (room T) Thermal tests #1 [Health Check ref] Thermal tests #3 (health check) Packing Delivery One week bake out (80°C) Thermal tests #2 (health check) Performance test (nominal) COOLER AIV PLAN Assembling (Techmeta/SNLS/OMG /Thermocompact/SBT)

  6. SCHEDULE CQM 2002 Available for delivery Assembling PreTests + Integration Vibration Tests Note : Planning can be impacted by ECR on electrical isolation Thermal Vacuum Thermal Tests PFM & FS 2002 2003 MachiningDelivery PFM Delivery FS Assembling Qualification PFM Qualification FS

  7. PA PLAN - 1 • PA requirements implemented - covers all project life - Potential risks & hazards identification done - Cleanliness and contamination control - Material evaluation program in progress (Kevlar) - DML & DPL done - Subcontractors evaluated - Non conformance reporting system implemented - Configuration control system done - Traceability (acceptance data package)

  8. MAIN PROJECT DOCUMENTATION

  9. Anomaly spotted and traced MRBs (internal & subcontractors) Implementation of solution Qualification TO DATE : PROBLEMS & SOLUTIONS Deformation of structure after EB welding Angle iron added Deformation max. : ≈ 400 µm on 150 mm plate Impact on FM : None Structure modified accordingly No delta qualification expected

  10. OPEN ISSUES AND CRITICAL AREAS ELECTRICAL ISOLATION SPIRE ECR issued - Recently agreed by PACS (Feb. 15) Impact : - need to identify/qualify solution - but cooler already built - planning : to be evaluated, but some margin available today KEVLAR TENSION development of dedicated tool - various solutions being evaluated

  11. CONCLUSION • No major problems to date • CQM first thermal tests : ≈ April • STM available end of March • Electrical isolation : to be adressed • Kevlar : experiments continue data built up • out of SBT "territory" : cryostat straps need attention

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