Salient mechanical and optical design features of 25m-diameter light-collector of MACE imaging Gamma-Ray Telescope

Abstract

A low-threshold energy, high-sensitivity gamma-ray telescope, MACE (for Major Atmospheric Cerenkov Experiment) is proposed to be built in India for explorations of gamma-ray sky in 100's keV - 10's GeV photon energy range, hitherto inaccessible from ground. This paper outlines the scientific motivation for this major telescope system and focusses on its mechanical design aspects. Preliminary simulation results, obtained on the expected optical quality of the overall light collector, are also discussed.