Search Results - "Di Rocco, Héctor O."
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Spectral line shift of Balmer and Paschen ions by self-consistent methods
Published in Spectrochimica acta. Part B: Atomic spectroscopy (01-06-2022)“…The aim of this work is to investigate the Stark shifts of some hydrogenic atoms and ions in hot dense plasmas. For this, Debye-Hückel (DH) and Ion-Sphere (IS)…”
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A New Method for Determination of Self-Absorption Coefficients of Emission Lines in Laser-Induced Breakdown Spectroscopy Experiments
Published in Applied spectroscopy (01-03-2010)“…In this paper we present a new method for determining the self-absorption coefficients of emission lines in laser-induced breakdown spectroscopy (LIBS)…”
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Compton profile and charge density reconstruction by the maximum entropy method
Published in Physica scripta (01-04-2022)“…The aim of this work is to propose a theoretical procedure to determine the electron momentum density and Compton profile of valence electrons in solids. The…”
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Self-consistent screened hydrogenic model based on the average-atom model: comparisons with atomic codes and plasma experiments
Published in The European physical journal. D, Atomic, molecular, and optical physics (01-10-2021)“…Here we present a self-consistent relativistic screened-hydrogenic model (SHM) based on the average-atom model (AAM) for effective calculation of the energy…”
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Electron momentum density and Compton profile by a semi-empirical approach
Published in The Journal of physics and chemistry of solids (01-08-2015)“…Here we propose a semi-empirical approach to describe with good accuracy the electron momentum densities and Compton profiles for a wide range of pure…”
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Correspondence between atomic levels in LS and jj couplings
Published in Spectroscopy letters (21-04-2019)“…This work aims at determining the correspondence between LS and jj couplings for some typical configurations without explicitly calculating level energies. To…”
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Theoretical Compton profile of diamond, boron nitride and carbon nitride
Published in Physica. B, Condensed matter (15-09-2017)“…In the present study, we used the generalized gradient approximation method to determine the electron wave functions and theoretical Compton profiles of the…”
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Breit and Quantum Electrodynamics Energy Contributions in Multielectron Atoms from the Relativistic Screened Hydrogenic Model
Published in Brazilian journal of physics (01-04-2016)“…The correction to the Coulomb repulsion between two electrons due to the exchange of a transverse photon, referred to as the Breit interaction, as well as the…”
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Analysis of line profiles from transient plasmas using a pseudo-Fano function
Published in Spectrochimica acta. Part B: Atomic spectroscopy (01-09-2017)“…[Display omitted] •An analytical formula for line profile analysis is proposed.•Problem of solving a Voigt convolution integral is overcome.•Physical…”
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The Calculation of the Optical Depths of Homogeneous Plasmas: Analytical, Experimental, and Numerical Considerations
Published in Applied spectroscopy (01-10-2011)“…Starting from the general expressions describing the line emission by a homogeneous plasma in local thermal equilibrium (LTE), in the approximation of…”
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Study of the 4p2, 5p2 and 5s5f excited configurations of the Zn and Cd isoelectronic sequences, using relativistic and non-relativistic semiempirical approaches
Published in The European physical journal. D, Atomic, molecular, and optical physics (2016)“…The consistency of the energy levels published for configurations 4 p 2 , 5 p 2 and 5 s 5 f belonging to Zn and Cd isoelectronic sequences is studied…”
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Experimental Compton profiles of Be, Al and Ti and comparisons to generalized gradient approximation calculations
Published in The Journal of physics and chemistry of solids (01-10-2013)“…Experimental analysis of isotropic Compton profiles for beryllium, aluminum and titanium was performed to assess the radial core wavefunctions and…”
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The study of the 4s4p configuration of the Zn isoelectronic sequence using the relativistic jj-coupling approach
Published in The European physical journal. D, Atomic, molecular, and optical physics (01-08-2013)“…The 4 s 4 p configuration of Zn is analyzed using the Relativistic jj-coupling approach . The experimentally determined relativistic Slater integrals are…”
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Acceleration of Monte Carlo modeling of light transport in turbid media; an approach based on hybrid, theoretical and numerical, calculations
Published in Journal of quantitative spectroscopy & radiative transfer (01-03-2009)“…A novel method to accelerate Monte Carlo (MC) simulations of photon migration in turbid media is presented. It is specifically suited for transillumination…”
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Screening parameters for the relativistic hydrogenic model
Published in High energy density physics (01-12-2015)“…We present a Relativistic Screened Hydrogenic Model (RSHM) where the screening parameters depend on the variables (n, l, j) and the parameters (Z, N). These…”
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Light transmittance in turbid media slabs used to model biological tissues; scaling laws
Published in Optik (Stuttgart) (01-03-2010)“…Near infrared (NIR) light propagation through turbid media, such as some polymers or milky solutions, is dominated by multiple scattering. Common equations for…”
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The combined use of screening and quantum defect parameters in the study of ionized atoms
Published in High energy density physics (01-03-2015)“…The screened hydrogenic model (SHM) is one of the atomic models commonly used in plasma physics, especially in the high energy density range. However, for…”
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Fast and accurate expression for the Voigt function. Application to the determination of uranium M linewidths
Published in Spectrochimica acta. Part B: Atomic spectroscopy (01-09-2008)“…The Voigt function is the convolution between a Gaussian and a Lorentzian distribution. The numerical implementation of this function is required in diverse…”
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An examination of the consistency of the published levels of the p2, p3 and p4 isoelectronic sequences using jj-relativistic expressions
Published in Journal of quantitative spectroscopy & radiative transfer (01-12-2014)“…We check the consistency of the known energy levels of the p2, p3 and p4 isoelectronic sequences tabulated at the NIST Atomic Spectroscopy Database. We used a…”
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