  Fully Depleted Monolithic Active Pixels (FD-MAPS) represent a
state-of-the-art detector technology and profit from a low material budget and
cost for high energy physics experiments and other fields of research like
medical imaging and astro-particle physics. Compared to the MAPS currently in
use, fully depleted pixel sensors have the advantage of charge collection by
drift, which enables a fast and uniform response overall the pixel matrix. The
functionality of these devices has been shown in previous proof-of-concept
productions. In this article we describe the optimization of the test pixel
designs, that will be implemented in the first engineering run of the
demonstrator chip of the ARCADIA project. These optimization procedures include
radiation damage models, that have been employed in Technology Computer Aided
Design simulations to predict the sensors behavior in different working
environments.
