Polonium-210 Assay Using a Background-Rejecting Extractive Liquid-Scintillation Method

摘要

This paper describes a procedure which combines solvent extraction with alpha liquid scintillation spectrometry. Pulse shape discrimination electronics are used to reject beta and gamma pulses and to lower the background count to acceptable levels. Concentration of exp 210 Po and separation from interferring elements are accomplished using a H sub 3 Po sub 4 -HCl solution with TOPO combined with a scintillor in toluene. (ERA citation 07:008072)