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APO Imager - Schedule


The Imager Project has three stages
· · A PROJECT is a unique endeavor having a definable beginning and end with results in a deliverable A deliverable is something tangible and measurable Imager can be thought of as having three stages Design Build Integration

The 1) 2) 3)


Design
· Optical design (90% complete)
­ Have done a preliminary tolerance analysis but still need to polish this off before sending to optician

· Mechanical design (90% complete)
­ Need to add tolerances ­ Need to produce and review shop drawings

· Electronics design (10% complete)
­ Prototype designed and built for shutter control ­ Some custom PCB boards may need to be designed for motion control (FW) and inputs to I/O of PC104 ­ Layout of instrument umbilical TBD


Build (external vendors)
· Optics (3 Lenses)
­ Sierra Precision Optics

· Filters (large ugriz set)
­ Custom Scientific

· Machine shops
­ ­ ­ ­ CVE High Rolls, NM for most items (tolerances to 0.001 inch) UW Physics shop for some items (tolerances to 0.001 inch) Shop yet to be named for Aluminum Nitride parts Commercial Electro Plating will do the "electroless" nickel plating work

· CCD
­ E2V

· CCD interfacing
­ Astronomical Research Cameras (ARC - Bob Leach)


Integration and Testing
· Assembly and integration will take place in the Operations Building Instrument Lab and clean room.
­ CCD integration will take place in CA at ARC (Bob Leach's company)

· Lab testing and software integration will take place in the Instrument Lab · 3 half nights (up to 3 full nights) will be requested for commissioning on the telescope


1

23 4

5

6

78

9 10

11 12


Milestones
1. Optics Design ­ determine F/ratio and choose a CCD 2. Mechanical, Optical and Electronics Designs ­ preliminary enough for the PDR 3. Order CCD ­ Reviewers satisfied enough with design concepts to order CCD 4. Optics Design ­ Tolerancing complete enough to freeze optical design 5. Mechanical and Electrical Designs ­ ready for CDR 6. CDR process complete ­ order Optics and s tart making shop drawings 7. Test fit parts and start assembly 8. Initial pump down of dewar (with test window) 9. CCD and dewar (with test window) go to Leach for integration 10. First light (bench) on detector with APO ICC 11. Full lab bench testing of complete mechanical and software 12. First light on sky


Schedule should the CCD take full 9 months ARO


Work Breakdown Schedule
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