Abstract
Cellulose nitrate LR-115 detectors were irradiated with alpha particles in the energy range from 1 to 5MeV at incident angles from 20° to 90°, using an 241Am source. After etching in a 2.5N NaOH solution kept at 60°C for various periods, the diameters of the major and minor axes of the track openings, track growing rate, track etch rate, etching ratio, and track length were found as a function of energies and incident angles. The measured track parameters were compared to calculated values, and the etching ratio was formulated as a Durrani–Green's function of the incident energy and angle.
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