  This work is focused on even-odd effects on the minimal total fragment
excitation energy in thermal neutron induced fission of 233U and 235U as well
as in spontaneous fission of 252Cf. In a scission model, taking into account
the fragment deformation properties and Coulomb interaction between fragments,
the expression of the difference between Q-values referred to even/even and
odd/odd charge splits, respectively, on the corresponding difference between
the minimal total fragment excitation energy is studied.
