CEA-Grenoble / DSM / DRFMC / SBT / Lionel DUBAND - Instrument Baseline Design Review - PACS and SPIRE Cooler - Feb. 27/28 2002 1

SPIRE & PACS SORPTION COOLERS

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

30 000 K

3000 K

300 K

30 K

3 K

0.3 K

INSTRUMENT BASELINE DESIGN REVIEW

CEA-Grenoble / DSM / DRFMC / SBT / Lionel DUBAND - Instrument Baseline Design Review - PACS and SPIRE Cooler - Feb. 27/28 2002 2

COOLER STATUS - 1

DESIGN : completed(full compatibility with PACS/SPIRE)

CQM/STM Manufacturing : completed

Mechanical performance :Full numerical modelling done

All anomalies dealt with and tracedAll parts available

CEA-Grenoble / DSM / DRFMC / SBT / Lionel DUBAND - Instrument Baseline Design Review - PACS and SPIRE Cooler - Feb. 27/28 2002 3

COOLER STATUS - 2

CQM & STM Assembling : 90% doneSTM unit

Cooler heart ready for EB welding

Slight delay due to subcontractors

CEA-Grenoble / DSM / DRFMC / SBT / Lionel DUBAND - Instrument Baseline Design Review - PACS and SPIRE Cooler - Feb. 27/28 2002 4

GROUND SUPPORT EQUIPEMENT (MAIN)

TEST CRYOSTAT(2 "small" cryostats available)

LHeLN2

New large test cryostat delivered Feb. 2002Instrumentation in progress (wiring, thermometry, etc..)Needed for performance test (> 48 hours autonomy)

CLEAN ROOM : Implementation in progressExpected to be available April 2002

CEA-Grenoble / DSM / DRFMC / SBT / Lionel DUBAND - Instrument Baseline Design Review - PACS and SPIRE Cooler - Feb. 27/28 2002 5

COOLER AIV PLAN

Assembling(Techmeta/SNLS/

OMG/Thermocompact/

SBT)

Proof pressure tests(20 MPa)

Thermal tests #1[Health Check ref]

One week bake out(80°C)

PackingDelivery

Thermal tests #2(health check)

Vibration tests(room T)

Thermal tests #3(health check)

Performance test(nominal)

CEA-Grenoble / DSM / DRFMC / SBT / Lionel DUBAND - Instrument Baseline Design Review - PACS and SPIRE Cooler - Feb. 27/28 2002 6

January February Mars April May J une J uly Aug

2002CQM

PFM & FS

Autumn Winter Spring Summer Autumn Winter

2002 2003

Machining Delivery PFM Delivery FS Assembling

Qualification PFM Qualification FS

SCHEDULE

Assembling VibrationTests

Thermal Tests

ThermalVacuum

Available fordeliveryNote : Planning can

be impacted by ECR on electrical isolation

PreTests +Integration

CEA-Grenoble / DSM / DRFMC / SBT / Lionel DUBAND - Instrument Baseline Design Review - PACS and SPIRE Cooler - Feb. 27/28 2002 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)

CEA-Grenoble / DSM / DRFMC / SBT / Lionel DUBAND - Instrument Baseline Design Review - PACS and SPIRE Cooler - Feb. 27/28 2002 8

doc. Name completion statusCooler Specifications Released Not formally approvedI CD Released Not formally approvedPA Plan Released ApprovedDevelopement Plan Released Not formally approvedDetailed Planning Released -DML/DPL Released under reviewH/W tree Released under reviewMAIV Flow Chart Released Not formally approvedAIV Plan Released Not formally approvedFMECA Released Under reviewCleanliness Philosophy Released Not formally approvedAll procedures I n progress I nternal to SBT

MAIN PROJECT DOCUMENTATION

CEA-Grenoble / DSM / DRFMC / SBT / Lionel DUBAND - Instrument Baseline Design Review - PACS and SPIRE Cooler - Feb. 27/28 2002 9

TO DATE : PROBLEMS & SOLUTIONS

Deformation of structureafter EB welding

Deformation max. :≈ 400 µm on 150 mm plate

Impact on FM : NoneStructure modified

accordinglyNo delta qualification

expected

MRBs(internal & subcontractors)

Implementationof solution

Qualification

Anomaly spottedand traced

Angle iron added

CEA-Grenoble / DSM / DRFMC / SBT / Lionel DUBAND - Instrument Baseline Design Review - PACS and SPIRE Cooler - Feb. 27/28 2002 10

KEVLAR TENSIONdevelopment of dedicated tool

- various solutions being evaluated

OPEN ISSUES AND CRITICAL AREAS

ELECTRICAL ISOLATIONSPIRE ECR issued - Recently agreed by PACS (Feb. 15)Impact : - need to identify/qualify solution

- but cooler already built- planning : to be evaluated, but some

marginavailable today

CEA-Grenoble / DSM / DRFMC / SBT / Lionel DUBAND - Instrument Baseline Design Review - PACS and SPIRE Cooler - Feb. 27/28 2002 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