  A very intense gamma beam of the Gamma Factory facility proposed at CERN can
be used to generate radioactive ion beams (RIBs) with high production yields
and study the structure of exotic neutron-rich nuclei. The radioactive nuclides
are generated via photo-fission in several actinide targets and thermalized in
high-purity cryogenic helium, filling a gas cell which is enclosing the
targets. Electric fields are used to extract heavy ions and form RIBs which can
be sent to various selection and measurement stations. Estimates for the
production and extraction yields of exotic neutron-rich nuclei with such a
setup are provided. A study of the impact of space charge, build-up inside the
gas cell, on the extraction properties is presented and it is demonstrated that
the beam needs to be chopped for achieving optimal extraction yields.
