Thermal characterization of the support plate for the 6.5-m MMT thin-shell adaptive secondary mirror

Details Thermal characterization of the support plate for the 6.5-m MMT thin-shell adaptive secondary mirror Thermal characterization of the support plate for the 6.5-m MMT thin-shell adaptive secondary mirror

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3353..826r&link_type=abstract

Proc. SPIE Vol. 3353, p. 826-838, Adaptive Optical System Technologies, Domenico Bonaccini; Robert K. Tyson; Eds.

Physics

1

Scientific paper

The Multiple Mirror Telescope on Mt. Hopkins will soon be upgraded to a single 6.5 m primary mirror.An adaptive- optical system, featuring a thin-shell, adaptive-secondary mirror with 330 voice-coil actuators is being developed for this new telescope. The thin-shell mirror is supported by a thick, concave aluminum substrate which also holds the actuator control and monitoring electronics and serves as the reference surface. With the actuator electronics dissipating heat into the substrate, the thermal behavior of the aluminum reference plate becomes as important issue. This paper presents results form tow experiments designed to determine the thermal behavior of the reference plate.

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