## Polarization BremsstrahlungThis book introduces and reviews both theory and applications of polarizational bremsstrahlung, i.e. the electromagnetic radiation emitted during collisions of charged particles with structured, thus polarizable targets, such as atoms, molecules and clusters. The subject, following the first experimental evidence a few decades ago, has gained importance through a number of modern applications. Thus, the study of several radiative mechanisms is expected to lead to the design of novel light sources, operating in various parts of the electromagnetic spectrum. Conversely, the analysis of the spectral and angular distribution of the photon emission constitutes a new tool for extracting information on the interaction of the colliding particles, and on their internal structure and dynamical properties. Last but not least, accurate quantitative descriptions of the photon emission processes determine the radiative energy losses of particles in various media, thereby providing essential information required for e.g. plasma diagnostics as well as astrophysical and medical applications (such as radiation therapy). This book primarily addresses graduate students and researchers with a background in atomic, molecular, optical or plasma physics, but will also be of benefit to anyone wishing to enter the field. |

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### Contents

1 | |

2 Bremsstrahlung in Collisions of Structureless Charged Particles with Atoms and Ions | 17 |

3 Polarizational Bremsstrahlung in Collisions with Hydrogen Atom | 39 |

4 Cross Section of PBrS from ManyElectron Atoms and Ions | 61 |

5 PBrS in NonRelativistic Collisions of Structural Particles with Atoms and Ions | 121 |

6 Relativistic Effects in the Polarizational BrS Process | 151 |

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### Common terms and phrases

Amusia angular distribution approximation atomic electrons Bremsstrahlung BrS cross section BrS process calculated charged particle collision velocities contribution corresponding delocalized electrons dependence describe differential cross section dipole dipole moment dipole-photon DPWA dynamic polarizability effect elastic BrS electron capture electron energy emitted photon equation excited expression follows form-factor formulae fpol framework full curve fullerene function giant resonance hydrogen hydrogen-like impact parameter incident electron inelastic BrS integration interaction interference term ionic ionization potential ions jellium Korol M.Ya magnitude matrix element metal clusters multipole non-relativistic nucleus OBrS obtained orbital ordinary BrS PBrS photoabsorption photoionization photon emission photon energy photon polarizations Phys plasmon plasmon resonance polarizability projectile projectile electron qmax qmin quantum numbers radiation radiative radiative capture radius region relativistic result right-hand side RPAE Schrödinger equation Sect Solov’yov spectra subshells theory total BrS cross transferred momentum transition vector vicinity wavefunctions