The European Solar Telescope (EST) will be equipped with a MCAO system
to provide an excellent correction within one arcminute field of view
(FOV). A prototype of this system will be built with the same
requirements except for the frame rate. This prototype will allow to
test and verify new concepts for Solar MCAO, as, e.g., the integration
of neuronal networks in the reconstruction process. This prototype will
work as follows: a high-resolution image of the sun will be created and
perturbed by a turbulence simulator with different phase screens placed
at different heights. MCAO correction will be performed by one pupil DM
and four altitude DMs. Two wide field wavefront sensors will be used to
perform the tomography. The calibration and control strategies are still
to be defined in the lab for the future implementation on the EST MCAO
system. A scientific camera will evaluate the performance on a 60"
field. The prototype is currently under construction and it is expected
to be finished by 2019.