SIMULATION OF X-RAY FLUORESCENCE SPECTRA*

Year
1996
Author(s)
M. L. Collins - Los Alamos National Laboratory
S.-T. Hsue - Los Alamos National Laboratory
R. Gunnink - Los Alamos National Laboratory
Abstract
A method for simulating x-ray fluorescence (xRF) spectra in hybrid densitometry is presented. This technique allows simulation of XRF spectra for solutions with arbitrary concentrations of special nuclear material and minor actinides excited by an x-ray generator. Spectra for mixed uranium and plutonium solutions with I-VI%ratios ranging flom 100 to 1 have been generated. This range of ratios applies to most solutions found in plutonium reprocessing plants. XRF simulation can provide important data for estimating instrument precision, evaluating analysis techniques, and training system operators. Applications of XRF simulation in the development of the Los Alamos Hybrid K-Edge/XRF Densitometer system are described.