High-energy Atomic Physics (springer Series On Atomic, Optical, And Plasma Physics)
by Evgeny G. Drukarev /
2016 / English / PDF
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This self-contained text introduces readers to the field of
high-energy atomic physics - a new regime of photon-atom
interactions in which the photon energies significantly exceed
the atomic or molecular binding energies, and which opened up
with the recent advent of new synchrotron sources.
This self-contained text introduces readers to the field of
high-energy atomic physics - a new regime of photon-atom
interactions in which the photon energies significantly exceed
the atomic or molecular binding energies, and which opened up
with the recent advent of new synchrotron sources.
From a theoretical point of view, a small-parameter
characteristic of the bound system emerged, making it possible to
perform analytic perturbative calculations that can in turn serve
as benchmarks for more powerful numerical computations. The first
part of the book introduces readers to the foundations of this
new regime and its theoretical treatment. In particular, the
validity of the small-parameter perturbation expansion and of the
lowest-order approximation is critically reviewed. The following
chapters then apply these insights to various atomic processes,
such as photoionization as a many-body problem, dominant
mechanisms for the production of ions at higher energies, Compton
scattering and ionization accompanied by creation of e-e+ pairs,
and the photoionization of endohedral atoms (e.g. fullerene).
Last but not least, the computationally challenging transitions
in the electron shell during certain types of nuclear decays are
investigated in detail.
From a theoretical point of view, a small-parameter
characteristic of the bound system emerged, making it possible to
perform analytic perturbative calculations that can in turn serve
as benchmarks for more powerful numerical computations. The first
part of the book introduces readers to the foundations of this
new regime and its theoretical treatment. In particular, the
validity of the small-parameter perturbation expansion and of the
lowest-order approximation is critically reviewed. The following
chapters then apply these insights to various atomic processes,
such as photoionization as a many-body problem, dominant
mechanisms for the production of ions at higher energies, Compton
scattering and ionization accompanied by creation of e-e+ pairs,
and the photoionization of endohedral atoms (e.g. fullerene).
Last but not least, the computationally challenging transitions
in the electron shell during certain types of nuclear decays are
investigated in detail.