Journal ArticleDOI
RMATRX1: Belfast atomic R-matrix codes
TLDR
RMATRX1 as mentioned in this paper is a general program to calculate atomic continuum processes using the R -matrix method, including electronatom and electron-ion scattering, and radiative processes such as bound-bound transitions, photoionization and polarizabilities.About:
This article is published in Computer Physics Communications.The article was published on 1995-12-01. It has received 679 citations till now. The article focuses on the topics: Matrix method & Radiative transfer.read more
Citations
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Electron scattering from magnesium at an incident energy of 20 eV
TL;DR: In this paper, the 3 1P state of magnesium by 20 eV electrons has been studied experimentally using the scattered-electron-polarized-photon correlation method over a wide range of scattering angles (10°-120°) and theoretically using the convergent close-coupling and R-matrix with pseudo-state methods.
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Low-energy behaviour of e O scattering calculations
TL;DR: In this paper, the R-matrix method was used to calculate elastic cross sections for low-energy e −O scattering and excitation in the 3Pe ground state and for excitation to and between the 1De and 1Se states.
Journal ArticleDOI
Resolution of the long-standing overprediction of the resonance to intercombination line-intensity ratio in mid- Z neonlike ions
TL;DR: In this paper, predictions of R(3C/3D) across the Ne-like isoelectronic sequence from chromium to silver are brought into agreement with coronal-density experimental measurements in two steps: first by including a semi-empirical correction in the collisional atomic data due to configuration-interaction effects, and next by including the effects of cascades on the upper level populations.
Journal ArticleDOI
Atomic data from the Iron Project ? LXII. Allowed and forbidden transitions in Fe XVIII in relativistic Breit-Pauli approximation
TL;DR: In this article, an extensive set of oscillator strengths ( f ), line strengths ( S ), and radiative decay rates ( A ) for the allowed and forbidden transitions in Fe-XVIII is presented.
Journal ArticleDOI
Effective Collision Strengths for Fine-Structure Transitions in S I
TL;DR: In this article, the B-spline R-matrix approach was used to calculate the collisional excitation strengths for transitions between the 3s23p4 3P2,1,0, 1D2, and 1S0 levels and from these levels to the 58 fine-structure levels of the excited configurations of neutral sulfur.
References
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The Theory of Atomic Spectra
Edward U. Condon,G. H. Shortley +1 more
TL;DR: In this paper, the quantum mechanical method is applied to the theory of complex spectra and the Russell-Saunders case is used to obtain the energy levels of one-electron spectra.
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The Theory of Atomic Spectra
Edward U. Condon,G. H. Shortley +1 more
TL;DR: In this paper, the quantum mechanical method is applied to the theory of complex spectra and the Russell-Saunders case is used to obtain the energy levels of one-electron spectra.
Journal ArticleDOI
GRASP: A general-purpose relativistic atomic structure program
TL;DR: The Oxford MCP/MCDF and MCBP/BENA packages have been rewritten in FORTRAN 77 and combined in the new code, GRASP, which is more versatile than its predecessors, contains more stable and accurate numerical procedures and a simplified but more flexible interface.
Journal ArticleDOI
Quantum defect theory
TL;DR: Quantum defect theory (QDT) as mentioned in this paper is a unified theory of bound states, including series perturbations, autoionisation and electron-ion scattering, both elastic and inelastic.