G. Espinosa

Computational model for dynamic detailed atomic kinetics simulations of swift ion beams colliding with high-energy-density plasma targets

Rafael Rodriguez, Juan Miguel Gil, G. Espinosa

A theoretical-computational model for one dimensional (1D) spatial resolution, dynamic atomic kinetic simulations of the interaction of swift ion beams with plasmas, is presented. This model is based on solving a set of rate equations implemented in a collisional-radiative model that couples …

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Ion-beam plasma interaction in ion fast ignition nuclear fusion scheme: A systematic study of the hot-spot properties and gains

P. Rodríguez-Beltrán, Juan Miguel Gil, Rafael Rodriguez, G. Espinosa

Ion fast ignition by laser-driven ion beams is an interesting approach within the inertial confinement fusion scheme to achieve nuclear fusion. In the ion fast ignition, once the precompression of the target is finished, a sphere of fully ionized deuterium-tritium (DT) is …

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Beam-plasma interaction in fast ignition nuclear fusion: Hot-spot properties and gains for different initial plasma temperatures

P. Rodríguez-Beltrán, Juan Miguel Gil, Rafael Rodriguez, G. Espinosa

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Analytical model for the temperature field of a plasma heated by fast and monoenergetic ion beams

G. Espinosa, Juan Miguel Gil, Rafael Rodriguez, P. Rodríguez-Beltrán

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Simulation and characterization of hot spots generated in deuterium–tritium plasma by fast quasi-monoenergetic ion beams

Juan Miguel Gil, P. Rodríguez-Beltrán, Rafael Rodriguez, G. Espinosa

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Laboratory evidence for an asymmetric accretion structure upon slanted matter impact in young stars

Konstantin F. Burdonov, G. Revet, R. Bonito, C. Argiroffi et autres

Aims. Investigating the process of matter accretion onto forming stars through scaled experiments in the laboratory is important in order to better understand star and planetary system formation and evolution. Such experiments can indeed complement observations by providing access to the processes …

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Analysis of radiative opacities for optically thin and thick astrophysical plasmas

G. Espinosa, Rafael Rodriguez, Juan Miguel Gil

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VizieR Online Data Catalog: Radiation module for the code PLUTO (Colombo+, 2019)

S. Colombo, L. Ibgui, S. Orlando, Rufus Bautista Rodriguez et autres

Bound electron stopping power model of partially stripped ions in partially ionized plasmas

Juan Miguel Gil, P. Rodríguez-Beltrán, Rafael Rodriguez, G. Espinosa et autres

In this work, an expression for the bound electron stopping power of partially ionized highly energetic ions for partially ionized plasmas in the context of the Bethe approximation, in both local thermodynamic equilibrium and nonequilibrium, is presented and studied. The mean excitation …

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Effects of radiation in accretion regions of classical T Tauri stars

S. Colombo, L. Ibgui, S. Orlando, Rafael Rodriguez et autres

Context. Models and observations indicate that the impact of matter accreting onto the surface of young stars produces regions at the base of accretion columns where optically thin and thick plasma components coexist. Thus, an accurate description of these impacts is necessary …

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Effects of Radiation in Accretion Regions of Classical T Tauri Stars: Pre-heating of accretion column in non-LTE regime

S. Colombo, L. Ibgui, S. Orlando, Rafael Rodriguez et autres

Models and observations indicate that the impact of matter accreting onto the surface of young stars produces regions at the base of accretion columns, in which optically thin and thick plasma components coexist. Thus an accurate description of these impacts requires to …

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Simulation of the ion beam‐plasma interaction processes for point‐like ions in doped DT plasmas

P. Rodríguez-Beltrán, Juan Miguel Gil, Rafael Rodriguez, G. Espinosa et autres

The purpose of this work is to study the interaction between an ion beam and a doped deuterium‐tritium (DT) plasma in a fast ignition nuclear fusion context. In order to analyze the influence of the dopants in the interaction process, we present …

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