PALM-3000

HOWFS - 7/24/09

C. Baranec

PALM-3000 Current Status Summary

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• Telescope simulator assembled

• HOWFS assembled and tested

• Alignment plan (CIN 636) is halfway finished

• Alignment feedback GUI developed and tested

PALM-3000 Telescope Simulator

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• On-axis green laser

• Red laser fiber source

• On x-y-z translation stage

• F/# ~15.7 (needs to be confirmed)

PALM-3000 HOWFS Mechanical

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Pieces needed for WFS fabricated and assembled.

Alignment feedback GUI developed and tested.

PALM-3000 Alignment feedback GUI

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PALM-3000 s16

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PALM-3000 s32

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PALM-3000 s64

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PALM-3000 Demo…

• Switch to remote desktop

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PALM-3000 Analysis/Discussion

• Pupil ellipticity at 2.0% (1.70% desired for AOI of 10.5)– There are degrees of freedom to change the ellipticity

• Pupil size at 9.645 mm (9.600 target)• We need to establish exact pupil sizes in the

different modes before specifying collimator• Different focus measurement in different modes

– Many possible contributors, will require investigation• CCD50 focus positions not yet established

– Will require use of Pixelink camera

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PALM-3000 Flexure analysis

• Flexure – ATS150 roll compliance is excellent. Still awaiting pitch compliance. Expect 0.1”/hour. Khanh’s description of flexure analysis however is confusing. What priority should we place on having him document this properly?

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PALM-3000 Outstanding tasks - summary

• CCD50 readout modes – awaiting SciMeasure.• Test the camera modes – RN/DC (JR, ? days)• Finish alignment plan - (CB, 1 day)• Further alignment investigation – (CB, 1 day)• Amendments to alignment procedure – (CB, 1 day)• Internal flexure testing – (CB, 1 day)• Spec new optics – (CB, ½ day)• Alignment with the testbed – (CB, 2 days)• Plan for testing and incorporating new optics – (CB, 1

day)• Mechanical…

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PALM-3000 Mechanical Engineering Update

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Task # Priority Description Status1 CCD50 cover In shop2 HOWFS cover Conceptual, in solidworks3 Field stop with ACam mirror Fab. drawings4 ACam optics mounts Conceptual, in solidworks 5 ACam camera mount Conceptual, in solidworks

Khahn expects to be finished working on the HOWFS/Acam by end of next week.

PALM-3000 Schedule

• Mechanical finished – next few weeks

• SciMeasure modes - ?

• Integration with testbed (no DM) – 3-4 weeks

• Order testbed collimator/cylinder – after F/# established

• Integration with DM in testbed – 6-10 weeks

• Integration on PALM-AO bench – next year

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PALM-3000 Management Summary

Total labor:• CB – ~8 days• JR – CCD testing modes, integration• ME – 1 week from Khanh Bui• AB – integration

Equipment costs:• SciMeasure camera modes - ?• New optics (col, cyl) ~ $1000

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