Optimization of MCP intensifier tubes in astronomical adaptive optics sensors

Details Optimization of MCP intensifier tubes in astronomical adaptive optics sensors Optimization of MCP intensifier tubes in astronomical adaptive optics sensors

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie.1114..152c&link_type=abstract

IN: Active telescope systems; Proceedings of the Meeting, Orlando, FL, Mar. 28-31, 1989 (A90-30852 12-74). Bellingham, WA, Socie

Physics

Optics

Adaptive Optics, Image Intensifiers, Lead Zirconate Titanates, Microchannel Plates, Telescopes, Gallium Arsenides, Photocathodes, Visual Observation, Wave Front Deformation

Scientific paper

An account is given of the optimization of microchannel plate image intensifier systems for Hartmann-Shack wavefront-sensing adaptive optics suitable for astronomical instruments. Attention is given to the practical aspects of the operation of GaAs photocathode intensifiers, especially with respect to quantum efficiency and its implications for the governing assumptions of this design effort. Future possibilities for the use of these detectors in wavefront sensing nearer the IR range are evaluated; negative-affinity photocathode development shows promise of good spectral response in the IR.

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