Semi Empirical Equation for the Calculation of the Track Diameter of Alpha Particles in CR-39 as a Function of Etching Temperature

In this paper a new semi empirical equation describing the track diameters of particles in CR-39 is presented. The equation involves three free fitting parameters. It is shown that this equation can reproduce tracks diameter formed on the CR-39 by alpha particles at 3.1MeV, different etching times and temperature (70, 75, 80, 85) oC . Parameters values obtained from the experimental data were used to predict etched track diameters at different temperatures (T=70-85)oC and etching times (t=0-6)h. The suggested empirical equation is self consistent as far as reproducing all features of track diameter development as a function of etching time and temperature.