Alba Jorge

Classical-trajectory model for ionizing proton-ammonia molecule collisions: the role of multiple ionization

Alba Jorge, Marko Horbatsch, Tom Kirchner

Abstract We use an independent electron model with semi-classical approximation to electron dynamics to investigate differential cross sections for electron emission in fast collisions of protons with ammonia molecules. An effective potential model for the electronic orbitals is introduced, and utilized in …

es, ca (code pays fourni par la source)

Classical-Trajectory Time-Dependent Mean-Field Theory for Ion–Molecule Collision Problems

Alba Jorge, Marko Horbatsch, Tom Kirchner

es, ca (code pays fourni par la source)

Classical-trajectory model for ionizing proton-ammonia molecule collisions: the role of multiple ionization

Alba Jorge, Marko Horbatsch, Tom Kirchner

We use an independent electron model with semi-classical approximation to electron dynamics to investigate differential cross sections for electron emission in fast collisions of protons with ammonia molecules. An effective potential model for the electronic orbitals is introduced, and utilized in the …

Atomic collisional data for neutral beam modeling in fusion plasmas

Christian Hill, Dipti Dipti, Kalle Heinola, Alain Dubois et autres

Abstract The injection of energetic neutral particles into the plasma of magnetic confinement fusion reactors is a widely-accepted method for heating such plasmas; various types of neutral beam are also used for diagnostic purposes. Accurate atomic data are required to properly model …

at, fr, no, hu, es, au, ca, kr, de, gb, cn (code pays fourni par la source)

Classical-trajectory time-dependent mean-field theory for ion-molecule collision problems

Alba Jorge, Marko Horbatsch, Tom Kirchner

A mean-field model to describe electron transfer processes in ion-molecule collisions at the $\hbar =0$ level is presented and applied to collisions involving water and ammonia molecules. Multicenter model potentials account for the molecular structure and geometry. They include charge screening parameters …

Electron emission from water vapor under the impact of 250-keV protons

Abhijeet Bhogale, Subhro Bhattacharjee, Madhusree Roy Chowdhury, Chandan Bagdia et autres

Absolute double differential cross sections (DDCS) of low-energy electron emission from water molecule were measured upon collisions with 250-keV protons for emission angles between 30--150 degrees. The electrons having energies between 1 and 600 eV were detected by using hemispherical electrostatic analyzer. …

in, ar, es, ca (code pays fourni par la source)

Classical and semiclassical calculations of state-selective cross sections for electron capture and excitation in Be4++H(2s) collisions

Alba Jorge, Clara Illescas, Luis Méndez

A computational study of ${\mathrm{Be}}^{4+}+\mathrm{H}(2s)$ collisions has been carried out. Two computational models have been employed: the classical trajectory Monte Carlo (CTMC) method and the numerical solution of the time-dependent Schr\"odinger equation (GTDSE). The integral $n$ and $nl$ partial cross sections for …

es (code pays fourni par la source)

Net Electron Capture in Collisions of Multiply Charged Projectiles with Biologically Relevant Molecules

Hans Jürgen Lüdde, Alba Jorge, Marko Horbatsch, Tom Kirchner

A model for the description of proton collisions from molecules composed of atoms such as hydrogen, carbon, nitrogen, oxygen and phosphorus (H, C, N, O, P) was recently extended to treat collisions with multiply charged ions with a focus on net ionization. …

de, ca, es (code pays fourni par la source)

Net electron capture in collisions of multiply charged projectiles with biologically relevant molecules

Hans Jürgen Lüdde, Alba Jorge, Marko Horbatsch, Tom Kirchner

A model for the description of proton collisions from molecules composed of atoms such as hydrogen, carbon, nitrogen, oxygen and phosphorus (H, C, N, O, P) was recently extended to treat collisions with multiply charged ions with a focus on net ionization. …

Multicharged-ion–water-molecule collisions in a classical-trajectory time-dependent mean-field theory

Alba Jorge, Marko Horbatsch, Tom Kirchner

A recently proposed classical-trajectory dynamical screening model for the description of multiple ionization and capture during ion--water-molecule collisions is extended to incorporate dynamical screening on both the multicenter target potential and the projectile ion. Comparison with available experimental data for $\mathrm{He}{}^{2+}$ $+$ …

ca (code pays fourni par la source)

Classical calculations of differential electron emission in fast heavy-ion collisions with water molecules

Alba Jorge, Marko Horbatsch, Clara Illescas, Tom Kirchner

Synopsis We present a classical study of differential electron emission cross sections for highly-charged projectiles at υp ∼ 10 a.u. impinging on water molecules [1, 2]. Comparisons with Continuum Distorted Wave Eikonal Initial State theoretical results and with experimental data are presented. …

ca, es (code pays fourni par la source)

Energy deposit by electron excitation in CnN+ projectiles (n=1-3) colliding at in termediate velocity with He atoms : semi-empirical estimates and calculations

Thejus Mahajan, K. Béroff, Bernard Pons, Clara Illescas et autres

Synopsis Using measured dissociation branching ratios and theoretical dissociation energies, we extracted semi-empirical estimates of the energy deposit due to electron excitation in CnN+-He collisions at v=2.2 a.u. We compared these estimates to calculations based on the IAE (Independent Atom and Electron) …

fr, es, ca, us (code pays fourni par la source)