Author: V. I. Savchenko
Publisher:
ISBN:
Category : Electric fields
Languages : en
Pages : 4

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Book Description

Author: V. I. Savchenko
Publisher:
ISBN:
Category : Electric fields
Languages : en
Pages : 4

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Book Description

Author: Valeriy Astapenko
Publisher: Springer Science & Business Media
ISBN: 3642340822
Category : Science
Languages : en
Pages : 382

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Book Description
The book is devoted to the modern theory and experimental manifestation of Polarization Bremsstrahlung (PB) which arises due to scattering of charged particles from various targets: atoms, nanostructures (including atomic clusters, nanoparticle in dielectric matrix, fullerens, graphene-like two-dimensional atomic structure) and in condensed matter (monocrystals, polycrystals, partially ordered crystals and amorphous matter) The present book addresses mainly researchers interested in the radiative processes during the interaction between fast particles and matter. It also will be useful for post-graduate students specializing in radiation physics and related fields.

Author: Valery S. Lisitsa
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 328

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Book Description
Atoms in Plasmas is concerned with radiative-collisional phenomena in neutral and ionized gases. Central to the studies is a "perturbed atom", that is, an atom under the influence of different perturbations in plasmas; for example, perturbations due to electrical and magnetic fields, fields of plasma oscillations, laser and Planck-radiation fields, collisions with charged particles, stochastic accelerations, etc. The treatment covers fundamental aspects of modern physics, such as atomic quantum mechanics and quantum optics, radiation and collisional processes in plasmas and gases, nonlinear laser spectroscopy, and plasma diagnostics.

Author: Andrey V. Korol
Publisher: Springer Science & Business Media
ISBN: 3642452248
Category : Science
Languages : en
Pages : 285

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Book Description
This 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.

Author: V.N. Tsytovich
Publisher: Springer Science & Business Media
ISBN: 1461530482
Category : Science
Languages : en
Pages : 388

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Book Description
This book was written by a group of authors and provides a systematic dis cussion of questions related to bremsstrahlung in many-particle systems. A number of new results have recently been obtained in this area which require a fundamental revision of the previously existing traditional concepts of bremsstrahlung. This ap plies both to complicated atoms containing a large number of electrons and to the additional bremsstrahlung in a system of many particles forming a medium. In fact, the traditional approach was rigorously applicable only either to isolated "structureless" particles (e. g. , to the emission of an electron on a proton) or to par ticles radiating in the limit of extremely high frequencies. Polarization effects (either polarization of an atom itself by an incident particle or polarization of the medium surrounding an atomic particle) have a significant effect in the practically important optical and x-ray frequency ranges and sometimes even predominate. The first effect has come to be known as polarization atomic (or dynamic) bremsstrahlung and the second, as polarization transition bremsstrahlung. The au thors of this book use a single term: polarization bremsstrahlung. It seems that, in contrast to earlier ideas on the subject, bremsstrahlung during collisions of heavy incident particles with atoms is by no means small and is entirely caused by polar ization effects.

Author: R.J Goldston
Publisher: CRC Press
ISBN: 9781439822074
Category : Science
Languages : en
Pages : 514

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Book Description
Introduction to Plasma Physics is the standard text for an introductory lecture course on plasma physics. The text’s six sections lead readers systematically and comprehensively through the fundamentals of modern plasma physics. Sections on single-particle motion, plasmas as fluids, and collisional processes in plasmas lay the groundwork for a thorough understanding of the subject. The authors take care to place the material in its historical context for a rich understanding of the ideas presented. They also emphasize the importance of medical imaging in radiotherapy, providing a logical link to more advanced works in the area. The text includes problems, tables, and illustrations as well as a thorough index and a complete list of references.

Author: M. Landi Degl'Innocenti
Publisher: Springer Science & Business Media
ISBN: 1402024150
Category : Science
Languages : en
Pages : 899

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Book Description
The scientific research based on spectropolarimetric techniques is undergoing a phase of rapid growth. Instruments of unprecedented sensitivity are nowadays available, particularly for solar observations. To fully exploit the rich diagnostic content of such observations, it is necessary to understand the physical mechanisms involved in the generation and transfer of polarized radiation in astrophysical (or laboratory) plasmas. After an introductory part based on classical physics, this book tackles the subject by a rigorous quantum-mechanical approach. The transfer equations for polarized radiation and the statistical equilibrium equations for the atomic density matrix are derived directly from the principles of Quantum Electrodynamics. The two sets of equations are then used to present a number of applications, mainly concerning the diagnostics of solar magnetic fields. This book is primarily addressed to scientists working in the field of spectropolarimetry. It may also serve as a textbook for a course at the graduate or advanced undergraduate level.

Author: V. A. Astapenko
Publisher:
ISBN:
Category : Astrophysics
Languages : en
Pages : 206

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Book Description
This review presents results of recent investigations concerning the polarization and interference effects that arise in radiation processes such as Bremsstrahlung on targets with electron core, photo-effects in bichromatic electromagnetic field, femtosecond photon echo in nanocrystals, and associated phenomena. Some ideas are applied to the calculation of the cross section of atomic ionization by electron impact in the Born-Compton approximation. The results can be used for analyzing the radiation phenomena in plasmas in a wide temperature range including storage ring plasma.

Author: L A Bureyeua
Publisher: CRC Press
ISBN:
Category : Science
Languages : en
Pages : 472

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Book Description
The conception of a "perturbed atom" that is an atom under simultaneous action of a number of perturbations in astrophysical and laboratory plasmas is developed. These perturbations are electric and magnetic fields, the Planck radiation field, plasma oscillations, collisions of an atom with other particles, effects of stochastic peturbations on an atom with a dense medium. The aim of this review is to solve fundamental problems connected with these phenomena. The main approach to these problems involves quasiclassical or pure classical methods which have revealed great potential in recent years. Much attention is devoted to a description of highly excited (Rydberg) atomic states. The presentation of this review is sufficiently detailed to provide a useful reference text for researchers.