Cherenkov Telescope Array
(planned ground gamma-ray telescope array)
The Cherenkov Telescope Array (CTA)
is a plan for a pair of arrays of ground-based telescopes
on the Atacama Desert in Chile (99 dishes)
and La Palma in the Canary Islands (19 dishes)
for observation of gamma rays.
Their aim is to spot high-energy gamma-ray photons by observing the
Cherenkov radiation they produce in the upper atmosphere.
The method is indirect, but offers a much larger collecting area than
is practical with a space mission, which is what is needed for
the photons of interest.
The dishes are not identical, different sets covering different
A prototype dish began operation in 2017.
(gamma rays,telescope,NRAO,ESO,ground,Canary Islands,Chile,plan,array,distributed)
| || |
|4.2×10-21m||73×1027Hz||300TeV||begin||Cherenkov Telescope Array|
|62×10-18m||4.9YHz||20GeV||end||Cherenkov Telescope Array|
High Energy Stereoscopic System (HESS)