A5003293390- Electron and X-Ray Spectroscopy Techniques
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear Physics and Applications
- Advanced Materials Characterization Techniques
- Ion-surface interactions and analysis
- Radiation Shielding Materials Analysis
- Radiation Therapy and Dosimetry
- Advanced Radiotherapy Techniques
- Cultural Heritage Materials Analysis
- Medical Imaging Techniques and Applications
- Welding Techniques and Residual Stresses
- Corrosion Behavior and Inhibition
- X-ray Diffraction in Crystallography
- Building materials and conservation
- Boron and Carbon Nanomaterials Research
- Advanced X-ray and CT Imaging
- Radiopharmaceutical Chemistry and Applications
- Radiation Detection and Scintillator Technologies
- Hydrogen embrittlement and corrosion behaviors in metals
- Analytical chemistry methods development
- Conservation Techniques and Studies
- Atomic and Molecular Physics
- Microstructure and Mechanical Properties of Steels
- Fuel Cells and Related Materials
- Non-Destructive Testing Techniques
Universidad Nacional de Córdoba
2015-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2014-2024
Metropolitan University of Technology
2023
Centro Científico Tecnológico - Tucumán
2018
Centro Médico Sanitas Córdoba
2016
Centro Científico Tecnológico - San Juan
2013
A method for obtaining quantitative mean atomic number images in a scanning electron microscope different kinds of samples has been developed. The backscattered signal is monotonically increasing with the Z, and accordingly Z can be given as function image gray levels. From results obtained from Monte Carlo simulations, an exponential fitted to convert registered levels into map. Once this fitting was performed, reproducibility determination checked through acquisition metal mineral...
Abstract A method for the refinement of atomic and experimental parameters applicable to several spectroscopic techniques is presented. This kind procedure, previously used in x‐ray diffraction, shown be a powerful tool electron probe microanalysis (EPMA). consists minimizing differences between an spectrum function proposed account bremsstrahlung characteristic peaks from corresponding sample, also detection artifacts. complicated involves related different sources (x‐ray production,...
The experimental determination of ionization cross-sections and total x-ray production under electron impact is carried out for the three silver L-subshells. very complex spectral structure involving several satellite bands was previously investigated by analyzing wavelength-dispersive spectra acquired in an microprobe. In this work, careful processing means POEMA software developed previously, considering energy intervals which include main Ag-L emissions. resulting are compared with...
The Kramers expression was modified after fitting 52 spectra from targets of diverse composition at several incident energies. function obtained describes adequately the continuum x-ray spectrum observed when a bulk, homogeneous and polished sample is irradiated by an electron beam with energies ranging 5 to 35 keV. considered are pure multicomponent, covering elements boron bismuth. In addition simplicity, new shows very good agreement measured spectra—much closer than other models...
Particle‐induced X‐ray emission (PIXE), diffraction (XRD), electron microprobe analysis (EDS) and scanning microscopy (SEM) analytical techniques were used to characterize surface paints in pre‐ post‐fired Aguada Portezuelo decorated pottery. Surface paintings black, white, red, brown, burgundy ochre analysed. Major, minor trace elements detected by PIXE, whereas XRD SEM‐EDS gave information on the main mineral phases characteristic morphology for each analysed pigment. The results obtained...
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-rays in atomic transitions from L-shell vacancy states Ru, Ag and Te induced by electron incidence was studied.
Gel dosimeters are integrating dosimeters, that enable dose verification in three dimensions. Optical analysis of gel has demonstrated to be an available technique for imaging the absorbed in-phantom exposed radiotherapy beams. The goal is demonstrate ability achieve accurately and spatial resolution mapping, also when high regions produced by a complex dimensional treatment planning. Two types investigated, Fricke (Fricke-Xylenol-orangeinfused gel) normoxic-polymer (polyacrylamide gel)....
Diagram and satellite line parameters were obtained from Fe-L Ni-L X-ray spectra induced by electron impact.
Abstract Several workers have proposed different models for the ionization distribution function ϕ(ρz), involving features related to interaction of electrons with matter, e.g. cross‐section, stopping power, electron back‐scattering and mass absorption coefficients (MACs). A number expressions been developed these parameters, on which accuracy correction procedures depends. This paper presents a comparison among three more successful ϕ(ρz): Packwood Brown's Gaussian model, quadrilateral...