An optical reflector system for the CANGAROO-II telescope

Details An optical reflector system for the CANGAROO-II telescope An optical reflector system for the CANGAROO-II telescope

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..515..383c&link_type=abstract

GeV-TeV GAMMA RAY ASTROPHYSICS WORKSHOP: Towards a Major Atmospheric Cherenkov Detector VI. AIP Conference Proceedings, Volume

Astronomy and Astrophysics

Astronomy

Gamma-Ray Astronomy, Astronomical Telescopes, Cherenkov Counters, Mirrors, Light Reflection, Imaging

Scientific paper

We have developed light and durable mirrors made of CFRP (Carbon Fiber Reinforced Plastics) laminates for the reflector of the new CANGAROO-II 7 m telescope. The reflector has a parabolic shape (F/1.1) with a 30 m2 effective area which consists of 60 small spherical mirrors. The attitude of each mirror can be remotely adjusted by stepping motors. After the first adjustment work, the reflector offers a point image of about 0°.14 (FWHM) on the optic axis. The telescope has been in operation since May 1999 with an energy threshold of ~300 GeV. .

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