In this paper a new semi empirical equation describing the track diameters of α
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.
د.مشتاق عبد داود مسلط الجبوري | Dr. Mushtaq Abed Dawood Al-Jubbori | 6602