Cherenkov Telescope Array
The CTA will be the most powerful γ-detector, built on the advаnces of its predecessors (H.E.S.S., VERITAS and MAGIC), and is expected to register over 1,000 new objects. In order to cover the largest possible range of energies, three groups of telescopes are planned: 70 small-sized, 40 medium-sized and 8 large-sized, set at two sites: one in the northern hemisphere (the Canary Islands) and one in the southern hemisphere (Chile).
Different size telescopes
Each telescope will have its own specific dimensions, but they will all have a segmented cosmic ray detection mirror, a high-speed camera that records the registered rays and mounts that allow fast guidance to any direction of the sky.
So far, a prototype of a middle-sized size telescope has been built and tested, as well as three different variants of a small-sized telescope.
In October 2018, the first large-sized telescope was inaugurated. It is expected that the entire infrastructure will be completed and put into operation in 2025.