Using the image processing in digital system to determine the nuclear parameters of LR-115 detector

摘要

Background The relative resolution of the nuclear track detector to distinguish between the different energies of alpha particles has been investigated.Method This done by modeling the nuclear track of LR-115 detector, the revealed tracks have been classified and their diameters were measured with numerical densities replication depending on the fitting by resonance Breit-Wigner formula, the optimum etching time was chose with the least standard deviation of the spectral distribution of tracks diameter according to the average track diameter (D).Purpose The spectral distribution width (Delta D) was determined at Full Width at Half Maxima (FWHM). The results and comparisons showed the resonance Breit-Wigner formula it had a preference in improving the relative resolution of the detector as compared with the Gaussian and Wblfit formulas. It turns out the application of image analysis software by MATLAB technique leads to give fast and accurate nuclear track parameters for LR-115.Conclusion The digitally counting system is high accurate and infinite speed in completing the procedure. The results obtained with respect to the measurement of U-238 concentration in the standard samples, showed the superiority of digitally system in the determination of these concentration in comparison with manually system, with average error rate no exceeding of 4.175%.