Studying the possibility of using the optical transmittance to estimation density of the alpha particle tracks on CR-39 detector

Abstract

In this research, the alpha particle tracks density on CR-39 detectors was determined in minimum time and effort. Identical samples of CR-39 were irradiated for different irradiation times by an alpha source and chemically etched and the tracks counted using an optical microscope. In addition, the transmittance of these detectors was measured using UV-Vis spectroscopy in the spectral range of (400 - 1000 nm) and found that the transmittance is decreasing with increasing irradiation time. Then, the transmittance of the detectors was correlated with tracks density and obtained a calibration graph as well as the effect of tracks concentration and etching time on the transmittance detectors was studied.