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 m^2 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 re ector offers a point image of about 0.14 degree (FWHM) on the optic
axis. The telescope has been in operation since May 1999 with an energy
threshold of ~ 300 GeV.Comment: 5 pages, 2 figures, to appear in the proceedings of the GeV-TeV
Gamma-Ray Astrophysics Workshop, "Towards a Major Atmospheric Cherenkov
Detector VI" (Snowbird, Utah, August 13-16, 1999
