An Optical Reflector for the CANGAROO-II Telescope

Details An Optical Reflector for the CANGAROO-II Telescope An Optical Reflector for the CANGAROO-II Telescope

1999-06-04

arxiv.org/abs/astro-ph/9906075v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, to appear in Proc. 26th ICRC (Salt Lake City), OG 4.3.05

Scientific paper

We have been successful in developing light and durable mirrors made of CFRP (Carbon Fiber Reinforced Plastic) laminates for the reflector of the new CANGAROO-II 7 m telescope. The reflector has a parabolic shape (F/1.1) with a 30 m^2 effective area which consists of 60 small spherical mirrors of CFRP laminates. The orientation of each mirror can be remotely adjusted by stepping motors. After the first adjustment work, the reflector offers a point image of about $0.^\circ 14$ (FWHM) on the optic axis.

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