APPLICATION OF SOLID-STATE TRACK DETECTORS FOR MEASUREMENT OF THE LOW-LEVEL ACTIVITY OF ALPHA-EMITTERS

Alpha spectrometry approach using solid state nuclear track detectors of CR-39 type is considered within the energy range 4-6 MeV. Experimental information obtaining stages are described from solid state nuclear track detectors irradiation procedure to follow analysis of individual tracks. Results of plutonium isotopes contained samples and dependence of minimal detectible activity from exposure time and spike (tracer) activity for nuclide are presented.