April 9, 2008 NGS Engineering

Goals

The Palomar AO system has recently undergone a significant refurbishment. In the 4 months since November 29, 2007, we have:

• Recoated the AO relay flats and OAPs, and repolished and recoated the DM.
• Realigned the AO relay to provide a focus suitable for P1640 and SWIFT.
• Mounted FM3 on a removable kinematic base.
• Modified the PHARO mounting cradle to move PHARO forward 3.5".
• Modified the AO enclosure and added a PHARO FM3 enclosure.
• Installed a new AO stimulus, with 594nm laser source.
• Installed a new motor controller for Aerotech stages.

The purpose of this engineering night is to demonstrate the readiness of the refurbished system for NGS-AO science, and to characterize its performance.

Personnel and engineering schedules

Planning to be present: Baranec, Bouchez, Burruss, Roberts.
Engineering schedules:

Procedures and test plans

Please post your test plans on the Test Plan Library page, and add a link below.

• Daytime tests
  • AO bench setup and checkout - J. Roberts
  • PHARO pupil motion - A. Bouchez.
  • Stimulus flexure - R. Burruss.
• Nighttime tests
  • SSM motion and pupil registration.
  • Closed-loop performance.
  • Throughput.
  • Platescale (PHARO, ACAM, LOWFS)
  • Field distortion
  • Flexure