Detection Threshold for α-Particles on the Solid-State Track Detector of Celluloid Films

Abstract

Experimental investigations have been made on track registration properties of α-particles in the solid-state track detector of celluloid film. Celluloid films exposed to α-particles of 4.4∼2.2 MeV were etched in NaOH(6N) solution at 40°C and 50°C. The upper limits of the critical (threshold) energy for track registration and the maximum registration range of α-particles in the detector have been found to be 3.7∼3.8 MeV and 19∼21 µm, respectively.