  In its broadest terms, doctoral dissertation entitled "Track structure
modelling for ion radiotherapy" is part of the supporting research background
in the development of the ambitious proton radiotherapy project currently under
way at the Institute of Nuclear Physics PAN in Krak\'ow. Another broad
motivation was the desire to become directly involved in research on a topical
and challenging subject of possibly developing a therapy planning system for
carbon beam radiotherapy, based in its radiobiological part on the Track
Structure model developed by prof. Robert Katz over 50 years ago. Thus, the
general aim of this work was, firstly, to recapitulate the Track Structure
model and to propose an updated and complete formulation of this model by
incorporating advances made by several authors who had contributed to its
development in the past. Secondly, the updated and amended (if necessary)
formulation of the model was presented in a form applicable for use in computer
codes which would constitute the "radiobiological engine" of the future therapy
planning system for carbon radiotherapy, which the Krak\'ow ion radiotherapy
research group wishes to develop. Lastly, currently available radiobiology data
were analysed in terms of Track Structure Theory to supply exemplary parameters
for cell lines (preferably, exposed in normal and anoxic conditions) to be used
as possible input for carbon ion radiotherapy planning studies.
