Comparison among different models of track growth and experimental data

The lengths of major axes of the alpha-particle track openings in CR-39 detectors were calculated by using four different models of track growth. Special computer programs were prepared for each of the models under comparison. Some differences were found among the results from the various models considering the wide ranges of incident angles, energies and removed layers during chemical etching. Systematical comparisons with experimental data for various incident angles and energies up to 5 MeV were also performed.