A5090152064- X-ray Spectroscopy and Fluorescence Analysis
- Electron and X-Ray Spectroscopy Techniques
- Fuel Cells and Related Materials
- Nuclear Physics and Applications
- Ion-surface interactions and analysis
- Electrocatalysts for Energy Conversion
- Advanced Materials Characterization Techniques
- Cultural Heritage Materials Analysis
- Advanced Battery Materials and Technologies
- Membrane-based Ion Separation Techniques
- nanoparticles nucleation surface interactions
- Advanced battery technologies research
- Advanced Battery Technologies Research
- Advanced materials and composites
- Radiation Shielding Materials Analysis
- Vehicle emissions and performance
- Laser-induced spectroscopy and plasma
- Analytical Chemistry and Sensors
- Conducting polymers and applications
- Recycling and utilization of industrial and municipal waste in materials production
- Freezing and Crystallization Processes
- Building materials and conservation
- Mine drainage and remediation techniques
- Iron oxide chemistry and applications
- X-ray Diffraction in Crystallography
Universidad Nacional de Córdoba
2013-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2010-2024
Centro Médico Sanitas Córdoba
2016
Esslingen University of Applied Sciences
2010
National University of San Luis
2007-2010
Centro Científico Tecnológico - San Luis
2010
Centro Científico Tecnológico - San Juan
2008
The emission of x rays in the $K\ensuremath{\beta}$ region Mg, Al, Si, Sc, Ti, Cr, Fe, Ni, and Zn induced by electron bombardment was studied means wavelength dispersive spectroscopy. lines were: $K{\ensuremath{\beta}}^{\mathrm{III}}$ $K{\ensuremath{\beta}}^{\mathrm{IV}}$ spectator hole transitions, $1s\ensuremath{\rightarrow}3s$ quadrupole decay, $K{\ensuremath{\beta}}_{2}$ $K{\ensuremath{\beta}}_{5}$ diagram structures related to radiative Auger processes,...
Abstract X‐ray diffraction (XRD), energy dispersive spectrometry (EDS), x‐ray imaging (XRI) and scanning electron microscopy (SEM) techniques were applied to characterize differentiate surface paintings of archeological pottery from the Aguada Ambato Portezuelo styles (Catamarca, Argentina). Standard procedures are not always appropriate for such samples (paint layers porous, nonplanar discontinue). Image processing is necessary when chemical contrast discriminated. Soft lines (e.g. Fe L)...
The emission of x rays in atomic transitions from $M$-shell vacancy states Pb, Bi, Th, and U induced by electron bombardment was studied means wavelength dispersive spectroscopy. Relative transition probabilities, characteristic energies, natural linewidths, x-ray production cross sections were determined through a careful spectral processing based on parameter refinement method. experimental data for number relative probabilities along with values large set parameters are given. Finally,...
Effects related with the attenuation and deflection suffered by an electron beam when it passes through a carbon conductive coating oxide film layer on surface of bulk samples are studied Monte Carlo simulations energy dispersive spectroscopy excitation. Analytical expressions provided for primary intensity losses incident electrons in both layers, terms incidence energy, mass thicknesses, atomic number oxidized element. From these analytical expressions, suitable corrections proposed models...
A method for the experimental determination of absolute efficiency wavelength dispersive spectrometers was developed, based on comparison spectra measured with a system and an energy spectrometer. The aim studying this parameter arises because its knowledge is necessary to perform standardless analysis. simple analytical expression obtained curve three crystals (TAP, PET, LiF) spectrometer used, within range from 0.77 10.83 keV. Although particular used in work, may be extended other...
The sulfur K x-ray emission was studied in pure sulfur, anhydrite (CaSO4) and sphalerite (ZnS) samples. ionizations were induced by electron impact the spectra recorded with a wavelength dispersive spectrometer. spectral processing performed through methodology based on optimization of atomic experimental parameters. Energies intensities diagram satellite lines determined for set transitions Kα Kβ groups. include Kα22, Kα2, Kα1, Kα', Kα3, Kα4, Kα5, Kα6, Kβ1,3, Kβ-RAE, KβIII, KβIV, Kβx, Kβ'...
X-ray production cross sections of Re and Os M subshells were measured using an electron beam.
Relative L-shell radiative transition rates were obtained for a number of decays in Gd, Dy, Er, Yb, Hf, Ta and Re by means method refining atomic experimental parameters involved the spectral analysis x-ray irradiated samples. For this purpose, pure samples bombarded with monochromatic synchrotron radiation tuning incident energy order to allow selective ionization different shells. The results presented are compared theoretical values published other authors. A good general agreement was...
The emission of x-ray satellite lines in the $K\ensuremath{\alpha}$ region Mg, Si, Sc, Ti, Cr, Fe, Ni, and Zn induced by electron incidence was studied means wavelength dispersive spectroscopy. were $K{\ensuremath{\alpha}}^{\ensuremath{'}}$, $K{\ensuremath{\alpha}}_{3}$, $K{\ensuremath{\alpha}}_{4}$, $K{\ensuremath{\alpha}}_{5}$, $K{\ensuremath{\alpha}}_{6}$, two transitions denoted here as $K{\ensuremath{\alpha}}_{22}$ $K{\ensuremath{\alpha}}_{12}$. Energy shifts with respect to main...
The emission of X-rays in atomic transitions from L-shell vacancy states Ru, Ag and Te induced by electron incidence was studied.
Diagram and satellite line parameters were obtained from Fe-L Ni-L X-ray spectra induced by electron impact.
The ageing of microporous layers (MPL) fuel cell gas diffusion has been analyzed using a special atomic force microscopy technique. mean local adhesion on the surface as well energy dissipation same area used measure for changes properties corresponding to MPL. samples have studied before and after operation. In all cases, due operation are stronger cathode compared anode. results from measurements under comparably dry wet conditions consistent with an increased loss polytetrafluoroethylene...
X-ray-production cross sections for ${M}_{3}, {M}_{4}$, and ${M}_{5}$ subshells of Pt Au by electron impact were experimentally determined at incident energies ranging between 2.8 28 keV. To this purpose, thick targets irradiated an beam in a field-emission-gun scanning microscope, the x-ray-emission spectra recorded with energy-dispersive spectrometer. The x-ray-production obtained as result spectral processing performed through careful parameter optimization routine previously developed,...