Open AccessDevelopment of total uranium analytical method by L x-ray fluorescence
Author(s) -
R. A. Dewberry
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/491554
Subject(s) - uranium , excitation , detector , x ray fluorescence , electromagnetic shielding , fluorescence , sample (material) , analytical chemistry (journal) , absorption (acoustics) , chemistry , range (aeronautics) , materials science , radiochemistry , physics , optics , nuclear physics , chromatography , quantum mechanics , composite material
This paper describes development of an L x-ray fluorescence technique to perform total uranium analysis using an internal excitation source which is added directly to the sample. The method has been demonstrated with synthetic U samples in the limited concentration range of 1g/l to 15g/l, and provides the advantages of simplicity, involving no mechanical parts which would normally be found in an external excitation source. Total uranium is determined by counting L x-rays fluoresced by a microCurie level spike of Cd-109 added directly to the sample and without shielding the excitation source from the detector. A method for correction of sample self-absorption is included in the analysis