Calculations of electron scattering on H-like ions

Bray, Igor; Hayat, H.; Fursa, Dmitry V.; Kadyrov, Alisher; Bray, Alexander; Cytowski, M.

doi:10.1103/physreva.101.022703

Cited by 5 publications

(3 citation statements)

References 34 publications

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“…The code has inbuilt hybrid MPI and OpenMP parallelization, as well as GPU acceleration. The latter has only been implemented recently [54] and continues to be a focus of development. Sample e-Li scattering inputs for the presented calculations are available.…”

Section: Atomic Molecular and Optical Science Gatewaymentioning

confidence: 99%

Taking the Convergent Close-Coupling Method beyond Helium: The Utility of the Hartree-Fock Theory

Bray

Weber

Fursa

et al. 2022

Atoms

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The convergent close-coupling (CCC) method was initially developed to describe electron scattering on atomic hydrogen and the hydrogenic ions such as He+. The latter allows implementation of double photoionization (DPI) of the helium atom. For more complex single valence-electron atomic and ionic targets, the direct and exchange interaction with the inner electron core needs to be taken into account. For this purpose, the Hartree-Fock (HF) computer codes developed in the group of Miron Amusia have been adapted. In this brief review article, we demonstrate the utility of the HF technique by examples of electron scattering on Li and the DPI of the H− and Li− ions. We also discuss that modern-day computer infrastructure allows the associated CCC code, and others, to be readily run directly via the Atomic, Molecular and Optical Science Gateway.

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Section: Atomic Molecular and Optical Science Gatewaymentioning

confidence: 99%

Taking the Convergent Close-Coupling Method beyond Helium: The Utility of the Hartree-Fock Theory

Bray

Weber

Fursa

et al. 2022

Atoms

Self Cite

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“…Accurate EII cross sections are essential for a reliable interpretation of laboratory plasmas. In Figure 6, we depict our (calculated using the Model 1) ground state total EII cross sections of N 6+ ion in plasma environments and compare them (the plasma-free case) with the convergent close-coupling (CCC) theoretical results of Bray et al [46] and with the experimental data of Aichele et al [47]. For the unshielded case, both theoretical results are within experimental uncertainty of each other, although our Model 1 theoretical calculations are bigger than the measurements ($8% larger at the peak of the cross section).…”

Section: T a B L E 2 The Same As Formentioning

confidence: 99%

Development of various methods to the investigation of the spectral properties and collision dynamics of H‐like ions taking place in dense and hot plasma environments

Chen

Liu

Sun

et al. 2021

Int J of Quantum Chemistry

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The correct understanding of the behavior of highly stripped ions immersed in a dense plasma environment is a hitherto challenge for theory and it is of importance in various applications. Here, we developed four kinds of novel theoretical models to the determination of the spectral properties and collision dynamics of H-like ions in dense and hot plasmas by employing the analytical potential [Li et al., Phys. Plasmas 2019, 26, 033301] to describe the interactions among the charged particles: (i) The electron photon processes in plasma model within the relativistic scheme; (ii) The multiconfiguration Dirac-Fock model within the framework of relativistic self-consistent iteration approximation; (iii) The generalized pseudospectral method within the relativistic framework; and (iv) An analytic formula based on the Hartree-Fock method and the irreducible tensor theory within the non-relativistic regime, derived from a solution of Schrödinger equation. As a typical example, energy eigenvalues, radiative transition properties, spectral line shifts, and electron impact excitation and ionization cross sections of the selected N 6+ and Ne 9+ ions are determined for several temperature-density cases, characteristic of inertial confinement fusion plasmas. A comparison of these results with each other and the results from earlier calculations as well as with the available experimental data is provided. Systematic trend is determined for all the Zhan-Bin Chen and Peng-Fei Liu contributed equally to this study.

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“…Esta propiedad permite que las zeolitas sean empleadas como ablandadoras de agua (solas o como componentes de los detergentes, en sustitución de los polifosfatos). (Llenado, 1983;Rees, 1986), en el tratamiento de desechos radioactivos (Bray, 1971), para remover amoniaco de aguas de desecho (Mercer, 1968;Breck, 1973;01ahetal., 1986)y en catálisis.…”

Section: //Miunclassified

Las zeolitas de la costa de Ecuador (Guayaquil) : geología, caracterización y aplicaciones

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Calculations of electron scattering on H-like ions

Cited by 5 publications

References 34 publications

Taking the Convergent Close-Coupling Method beyond Helium: The Utility of the Hartree-Fock Theory

Taking the Convergent Close-Coupling Method beyond Helium: The Utility of the Hartree-Fock Theory

Development of various methods to the investigation of the spectral properties and collision dynamics of H‐like ions taking place in dense and hot plasma environments

Las zeolitas de la costa de Ecuador (Guayaquil) : geología, caracterización y aplicaciones

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