  The Cherenkov Telescope Array (CTA) is an international next-generation
ground-based gamma-ray observatory. CTA will be implemented as southern and
northern hemisphere arrays of tens of small, medium and large-sized imaging
Cherenkov telescopes with the goal of improving the sensitivity over the
current-generation experiments by an order of magnitude. CTA will provide
energy coverage from ~20 GeV to more than 300 TeV. The Schwarzschild-Couder
(SC) medium size (9.5m) telescopes will feature a novel aplanatic two-mirror
optical design capable of accommodating a wide field-of-view with significantly
improved angular resolution as compared to the traditional Davies-Cotton
optical design. A full-scale prototype SC medium size telescope structure has
been designed and will be constructed at the Fred Lawrence Whipple Observatory
in southern Arizona during the fall of 2015. concentrate on the novel features
of the design.
