  The activities of the EUROfusion consortium on the development of high
quality nuclear data for fusion applications include evaluations of deuteron
induced reactions and related data libraries for needs of the DEMO fusion power
plant and IFMIF-DONES neutron--source nuclear analyses. Molybdenum is one of
the major constituents of the reference stainless steels used in critical
components of these projects. While the TENDL deuteron data library was the
current reference used by EUROfusion, need of its further improvement has
already been pointed out. The weak binding energy of the deuteron is
responsible for the high complexity of its interaction with nuclei, involving
also a variety of reactions initiated by the nucleons following the deuteron
breakup. Their analysis completed that of the deuteron interactions with Mo and
its stable isotopes, from elastic scattering to pre-equilibrium and
compound--nucleus reactions, up to 50 MeV. A particular attention has been paid
to the breakup, stripping, and pick-up direct interactions which amount to
around half of the deuteron total--reaction cross section. The due account of
most experimental data has validated the present approach, highlighted some
prevalent features, and emphasized weak points and consequently the need for
modeling/evaluation upgrade.
