In this work, previous modeling of protons and alpha particles track length development in CR-39 solid
state nuclear track detectors SSNTD is modified and further extended. The extension involved the accommodation of heavier ions into the model. These ions include deuteron, lithium, boron, carbon, nitrogen and oxygen ions. The new modeling does not contain any case sensitive free fitting parameters.
Model calculation results are found to be in good agreement with both experimental data and SRIM
software range energy dependence predictions. The access to a single unified and differentiable track
length development equation results in the ability to obtain direct results for track etching rates