  The area of interests of nuclear physics are studies of reactions, wherein
atomic nuclei of projectile collide with target nuclei. An amount of energy
lost by projectile nucleus during its passing through the target is a major
issue - it is important to know how charged particles interact with matter. It
is possible to afford this knowledge by using theoretical programs, which
calculate energy loss applying Bethe-Bloch equation.
  Hadrontherapy, which is a field of still growing interest, is based on
interactions of charged particles with matter. Therefore exists a need of
creating a simple model, which could be used to the calculation of dose
distributions in biological matter.
  Two programs (SRIM, Xeloss), used to the calculation of energy loss by
nuclear physicist, have been adapted to determine dose distributions in analogs
of human tissues. Results of the calculations with those programs for beams
used in hadrontherapy (e.g. $^1$H, $^{12}$C) will be compared with experimental
data available in references.
