Electron-impact single ionization of Mg and Al+

J. A. Ludlow; C. P. Ballance; S. D. Loch; M. S. Pindzola; D. C. Griffin

doi:10.1103/PhysRevA.79.032715

Electron-impact single ionization of Mg and Al+

J. A. Ludlow, C. P. Ballance, S. D. Loch, M. S. Pindzola, D. C. Griffin

School of Mathematics and Physics

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Theory and experiment are compared for the electron-impact single ionization of Mg and Al+. Nonpertur- bative R matrix with pseudostates RMPS and time-dependent close-coupling TDCC calculations have been carried out that exhibit large reductions from perturbative distorted-wave results of 38% for Mg and 20% for Al+. Experimental single-ionization data available for Mg and Al+ are in reasonable accord with distorted-wave data and lie substantially above the new theoretical results. Rate coefficients, necessary for the collisional- radiative modeling of Mg and Al plasmas were generated from the RMPS ionization cross sections. In the collisional-ionization region near the ionization threshold, the resulting rates were found to be up to two times lower for Mg and three times lower for Al+ than the rates generated from experimental data.

Original language	English
Journal	Physical Review A (Atomic, Molecular, and Optical Physics)
Volume	79
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevA.79.032715
Publication status	Published - 2009

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title = "Electron-impact single ionization of Mg and Al+",

abstract = "Theory and experiment are compared for the electron-impact single ionization of Mg and Al+. Nonpertur- bative R matrix with pseudostates RMPS and time-dependent close-coupling TDCC calculations have been carried out that exhibit large reductions from perturbative distorted-wave results of 38% for Mg and 20% for Al+. Experimental single-ionization data available for Mg and Al+ are in reasonable accord with distorted-wave data and lie substantially above the new theoretical results. Rate coefficients, necessary for the collisional- radiative modeling of Mg and Al plasmas were generated from the RMPS ionization cross sections. In the collisional-ionization region near the ionization threshold, the resulting rates were found to be up to two times lower for Mg and three times lower for Al+ than the rates generated from experimental data.",

author = "Ludlow, {J. A.} and Ballance, {C. P.} and Loch, {S. D.} and Pindzola, {M. S.} and Griffin, {D. C.}",

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doi = "10.1103/PhysRevA.79.032715",

language = "English",

volume = "79",

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T1 - Electron-impact single ionization of Mg and Al+

AU - Ludlow, J. A.

AU - Ballance, C. P.

AU - Loch, S. D.

AU - Pindzola, M. S.

AU - Griffin, D. C.

PY - 2009

Y1 - 2009

N2 - Theory and experiment are compared for the electron-impact single ionization of Mg and Al+. Nonpertur- bative R matrix with pseudostates RMPS and time-dependent close-coupling TDCC calculations have been carried out that exhibit large reductions from perturbative distorted-wave results of 38% for Mg and 20% for Al+. Experimental single-ionization data available for Mg and Al+ are in reasonable accord with distorted-wave data and lie substantially above the new theoretical results. Rate coefficients, necessary for the collisional- radiative modeling of Mg and Al plasmas were generated from the RMPS ionization cross sections. In the collisional-ionization region near the ionization threshold, the resulting rates were found to be up to two times lower for Mg and three times lower for Al+ than the rates generated from experimental data.

AB - Theory and experiment are compared for the electron-impact single ionization of Mg and Al+. Nonpertur- bative R matrix with pseudostates RMPS and time-dependent close-coupling TDCC calculations have been carried out that exhibit large reductions from perturbative distorted-wave results of 38% for Mg and 20% for Al+. Experimental single-ionization data available for Mg and Al+ are in reasonable accord with distorted-wave data and lie substantially above the new theoretical results. Rate coefficients, necessary for the collisional- radiative modeling of Mg and Al plasmas were generated from the RMPS ionization cross sections. In the collisional-ionization region near the ionization threshold, the resulting rates were found to be up to two times lower for Mg and three times lower for Al+ than the rates generated from experimental data.

U2 - 10.1103/PhysRevA.79.032715

DO - 10.1103/PhysRevA.79.032715

M3 - Article

SN - 1050-2947

VL - 79

JO - Physical Review A (Atomic, Molecular, and Optical Physics)

JF - Physical Review A (Atomic, Molecular, and Optical Physics)

IS - 3

ER -

Electron-impact single ionization of Mg and Al+

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