Computation of Atomic Processes: A Handbook for the ATOM Programs
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Summary
This text and software package contains many of the formulae needed for researchers to compute atomic processes, including photoionization, Auger and radiative decay, elastic scattering and ionization. The calculations are set within the Hartree-Fock approximation and its generalization to the random phase approximation with exchange. The results of calculations can be used to solve a wide range of physical problems, from atomic strucutre to cross sections of collision processes.
The text explains how to use the ATOM programs, the software for which is written in FORTRAN and may be used on VAX or UNIX-based machines. The programs each consider a different range of variables. The organization of the text and software is designed to help the user calculate what they need to as easily as possible.
It is a unique compendium of information for those researching atomic properties and processes, in particular for those working in computational physics. It will be useful to those working in atomic and molecular physics, astrophysics, radiation physics, plasma physics, and solid state physics to obtain accurate information about atomic structure.
Table of Contents
Overview. Essential physics of the ATOM system. Mathematical description of atomic properties. Radial self-consistent Hartree-Fock-Dirac equations. Radial Hartree-Fock equation for the frozen core. The choice of wave functions. The coefficients in the Hartree-Fock equation. Photoionization, oscillator strengths and polarizability. Generalized oscillator strengths. Electron impact ionization. Generalized oscillator strengths with PCI. Inner-shell photoionization with PCI. Near-threshold ionization. Self-energy part of the one-particle Green function. Scattering phases and electron wavefunctions taking account of the self-energy part. The Auger-decay widths of atomic levels. Probability of double Auger decay. One-photon decay of two-hole states. Electron-induced triplet level excitation. High-energy projectile Bremsstrahlung. Intermediate energy Bremsstrahlung. The photoabsorption cross-section. The features of muon capture. The structure of the ATOM system. Results of Calculations.
Editorial Reviews
"... excellent user's manual ... judicious mix of information about theoretical approaches and calculation techniques for investigating atomic structure ... detailed account of the different numerical methods necessary for quantitative studies of atomic decay processes ... the ATOM system of programs ... ideally suited for researchers in computational atomic physics, also valuable to those actively working in molecular physics, solid-state physics, astrophysics, laser and plasma physics ... self-contained and systematically organized ... will enable [researchers] to take full advantage of the new computation features and improvements in many different areas of atomic physics."
Computers in Physics
cellent user's manual ... judicious mix of information about theoretical approaches and calculation techniques for investigating atomic structure ... detailed account of the different numerical methods necessary for quantitative studies of atomic decay processes ... the ATOM system of programs ... ideally suited for researchers in computational atomic physics, also valuable to those actively working in molecular physics, solid-state physics, astrophysics, laser and plasma physics ... self-contained and systematically organized ... will enable [researchers] to take full advantage of the new computation features and improvements in many different areas of atomic physics."
Computers in Physics