An interesting breakthrough in understanding the elusive inner
content of nuclear systems in terms of partonic degrees of freedom is
represented by deeply virtual Compton scattering processes. In such a
way, tomographic view of nuclei and bound nucleons in coordinate space
could be achieved for the first time. Moreover, nowadays experimental
results for such a process considering ^44He
targets recently released at Jefferson Lab are available. In this talk,
the recent results of our rigorous Impulse Approximation for DVCS off
^44He,
in terms of state-of-the-art models of the nuclear spectral function and
of the parton structure of the bound proton, able to explain present
data, has been shown.