Precise x-ray energies of gadolinium determined by a combined experimental and theoretical approach. (October 2019) - Ménesguen, Y.
Highlights: This article combined different approaches, either theoretical and experimental to determine a consistent set of diagram lines energies and binding energies of Gadolinium. This is the first time, to our knowledge, that such an approach is performed. It allowed us to determine precisely line energies on a large energy range covering the M and L diagram lines. We identified for the first time the lines M 5 − O 2, M 4 − O 2, 3 and M 4 − N 2, 3 diagram lines. Abstract: We combined different experimental techniques with a theoretical approach to determine a consistent set of diagram lines energies and binding energies. We propose an original approach consisting in determining the mass attenuation coefficients in an energy range covering the L -, M - and N - absorption edges, including a detailed evaluation of the associated uncertainties, to derive precisely the binding energies. We investigated the Lα, Lβ and M spectra of Gd with an independantly calibrated high-resolution anti-parallel double-crystal x-ray spectrometer. All the lines were identified and found in excellent agreement with the binding energies previously derived. Morever, we identified for the first time M 5 − O 2, M 4 − O 2, 3 and M 4 − N 2, 3 diagram lines.