Graphite monochromator for actinide L-line energy dispersive X-ray fluorescence analysis in liquid sample

E. Esbelin (1)

1 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)

The concentrations of actinides U, Np, Pu, Am, and Cm are determined by L-line X-ray fluorescence measurement in a hot cell. A specific device was built to focalize only on the energy range from 13 to 15 keV by means of a graphite monochromator. The resulting spectrum is characteristic of the system, which has been developed, and requires the development of specific processing software for quantitative analysis. This paper proposes a new approach of modeling and correction of matrix effects for these specific spectra. This correction requires a precise chemical description of the media. Several results were compared with other analytical techniques and very good agreement was found.

Domains: Nuclear Theory [nucl-th]; Nuclear Experiment [nucl-ex]

E. Esbelin. Graphite monochromator for actinide L-line energy dispersive X-ray fluorescence analysis in liquid sample. X-Ray Spectrometry, 2014, 43 (4), pp.198-208. ⟨10.1002/xrs.2540⟩. ⟨cea-02389398⟩