1. Test Readiness Review 23 October 2003 CRAL - LYON

2. October, 23th 2003TRR – Slicer Unit - CRAL2 Agenda 9h Status and Lab visit 9h Status and Lab visit 9h15 Summary of the design 9h15 Summary of the design 9h30 Integration 9h30 Integration 9h45 Overall test plan 9h45 Overall test plan 10h00 Results of individual subsystem test 11h30 Mechanical and vibration test 12h00 Lunch 14h00 Warm test plan 14h30 Cold test plan 15h Pupil and slit Mirrors concerns 15h15 General discussions 16h Action list 17h End

3. October, 23th 2003TRR – Slicer Unit - CRAL3 Status  Prototype manufactured and integrated  All components requirements are fulfilled  2 concerns: Slit mirrors optical contact released twice Slit mirrors optical contact released twice Pupil mirrors released once during delivery Pupil mirrors released once during delivery One mirror damaged One mirror damaged Cybernetix remanufacture one line (30th oct) Cybernetix remanufacture one line (30th oct)

4. October, 23th 2003TRR – Slicer Unit - CRAL4 Schedule

5. October, 23th 2003TRR – Slicer Unit - CRAL5 Action List Review

6. October, 23th 2003TRR – Slicer Unit - CRAL6 Design Overview Active Stack Heel Stack support Steering mirror Pupil mirror array Slit mirror array Main structure Substructure Thrust cylinders Dummy Stack

7. October, 23th 2003TRR – Slicer Unit - CRAL7 Prototype manufactured

8. October, 23th 2003TRR – Slicer Unit - CRAL8 Optical Design  10 Slices  5 pupil mirrors  5 slit mirrors  Diaphragm on re-imaging mirror  5 slits to be studied 2.754 mm (in slit mirrors and in detector plane) Incident collimated beam Folding mirror Re imaging mirror SlicesPupil mirrors Slit mirrors Camera objective 1 CCD detector

9. Pupil and slit Mirrors Concerns

10. October, 23th 2003TRR – Slicer Unit - CRAL10 Pupil and slit mirrors concerns  Recovery plan from the baseline monolithic solution  Not optimized for mechanical strength  Optimized to be mechanically compatible with monolithic  Optical property are fully in specifications  Mechanical assembly has to be redesign

11. October, 23th 2003TRR – Slicer Unit - CRAL11 Recommendation  Redesign and manufacture new pupil and slit lines  Redesign and manufacture new mechanical support  Conduct vibration and thermal tests  Recommendation: ESA Contract extension (~35k€) Current design Proposition