Optical design of the ultralight-weight FIRST telescope

Details Optical design of the ultralight-weight FIRST telescope Optical design of the ultralight-weight FIRST telescope

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4015..559c&link_type=abstract

Proc. SPIE Vol. 4015, p. 559-566, Radio Telescopes, Harvey R. Butcher; Ed.

Physics

Optics

Scientific paper

The FIRST telescope will be made of carbon fiber reinforced plastic. The optics follow a two mirror near-classical Ritchey-Chretian design, but deviates from that in two respects. The secondary mirror defines the pupil of the system, and the primary mirror is uncommonly fast at f/0.5. After presenting the optical design, the sensitivities will be presented. Current work in progress will be described in the following areas; (1) secondary mirror figure correction (2) stray light (3) primary mirror gaps (4) standing wave impact on the heterodyne instrument for FIRST (HIFI).

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