Atomic Inner-Shell Physics

Atomic Inner-Shell Physics PDF Author: Bernd Crasemann
Publisher: Springer Science & Business Media
ISBN: 1461324173
Category : Science
Languages : en
Pages : 760

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Book Description
The physics of atomic inner shells has undergone significant advances in recent years. Fast computers and new experimental tools, notably syn chrotron-radiation sources and heavy-ion accelerators, have greatly enhan ced the scope of problems that are accessible. The level of research activity is growing substantially; added incentives are provided by the importance of inner-shell processes in such diverse areas as plasma studies, astrophysics, laser technology, biology, medicine, and materials science. The main reason for all this exciting activity in atomic inner-shell physics, to be sure, lies in the significance of the fundamental problems that are coming within grasp. The large energies of many inner-shell processes cause relativistic and quantum-electrodynamic effects to become strong. Unique opportunities exist for delicate tests of such phenomena as the screening of the electron self-energy and the limits of validity of the present form of the frequency-dependent Breit interaction, to name but two. The many-body problem, which pervades virtually all of physics, presents somewhat less intractable aspects in the atomic inner-shell regime: correlations are relatively weak so that they can be treated perturbatively, and the basic potential is simple and known! The dynamics of inner-shell processes are characterized by exceedingly short lifetimes and high transition rates that strain perturbation theory to its limits and obliterate the traditional separation of excitation and deexcitation. These factors are only now being explored, as are interference phenomena between the various channels.

Atomic Inner-Shell Physics

Atomic Inner-Shell Physics PDF Author: Bernd Crasemann
Publisher: Springer Science & Business Media
ISBN: 1461324173
Category : Science
Languages : en
Pages : 760

Get Book Here

Book Description
The physics of atomic inner shells has undergone significant advances in recent years. Fast computers and new experimental tools, notably syn chrotron-radiation sources and heavy-ion accelerators, have greatly enhan ced the scope of problems that are accessible. The level of research activity is growing substantially; added incentives are provided by the importance of inner-shell processes in such diverse areas as plasma studies, astrophysics, laser technology, biology, medicine, and materials science. The main reason for all this exciting activity in atomic inner-shell physics, to be sure, lies in the significance of the fundamental problems that are coming within grasp. The large energies of many inner-shell processes cause relativistic and quantum-electrodynamic effects to become strong. Unique opportunities exist for delicate tests of such phenomena as the screening of the electron self-energy and the limits of validity of the present form of the frequency-dependent Breit interaction, to name but two. The many-body problem, which pervades virtually all of physics, presents somewhat less intractable aspects in the atomic inner-shell regime: correlations are relatively weak so that they can be treated perturbatively, and the basic potential is simple and known! The dynamics of inner-shell processes are characterized by exceedingly short lifetimes and high transition rates that strain perturbation theory to its limits and obliterate the traditional separation of excitation and deexcitation. These factors are only now being explored, as are interference phenomena between the various channels.

Inner-Shell and X-Ray Physics of Atoms and Solids

Inner-Shell and X-Ray Physics of Atoms and Solids PDF Author: Derek Fabian
Publisher: Springer Science & Business Media
ISBN: 1461592364
Category : Science
Languages : en
Pages : 947

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Book Description
A wide range of atomic and solid state phenomena is studied today by means of x-ray excitation or inner-shell ionization, as this volume strikingly illustrates. The strong link between these two fields of investigation is partly the result of the extensive developments within each and also largely due to the broad variety of theoretical and experimental techniques now available. All im portant recent advances are to be found highlighted here; most are substantially reviewed. Two dominant research threads are evident in, the chapters of this book. While clearly distinguishable, they are inescapably en twined. One is concerned with x-ray processes as probes for the study of solid-state effects, the other with the measurement and interpretation of inner-shell and bremsstrahlung processes in iso lated systems. In the first, a given material is made the target in an x-ray tube; in the second, free atoms form the target while a solid material can be used when the effect of the solid environ ment on the excitation processes is negligible. Thus, although inner-shell ionization is predominantly concerned with atoms and x-ray processes with the solid state, there are large regions of overlap which have arisen when a given research technique has de veloped from studies in both areas. To bring out these features we have arranged the chapters in the order: atomic, solid-state, chemical.

Atomic Inner-Shell Processes

Atomic Inner-Shell Processes PDF Author: Bernd Crasemann
Publisher: Elsevier
ISBN: 0323148808
Category : Technology & Engineering
Languages : en
Pages : 481

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Book Description
Ionization and Transition Probabilities is the first volume in Atomic Inner Shell Processes which describes the relative status of the physics of atomic inner shells. Both volumes can be applied and used in various traditional scientific disciplines. Volume I consists of 11 chapters written by different authors, each an expert in the field. The book discusses mainly the inner-shell excitation by electrons, heavy-charged particles, and photons and the atomic excitation as seen in nuclear decay. The theory of radiative and radiationless transitions is also explored in terms of single-particle descriptions and many-body approaches. Other major concepts covered in this comprehensive volume include the developments in theory of multiple decay processes; transition energies and their calculations; and energy shifts that are results of chemical environment and hyperfine interactions. This first volume serves as a valuable reference to many scientists and researchers in various fields like atomic and nuclear physics, astrophysics, chemistry, surface and materials science, and engineering or radiation shields.

Modern Atomic and Nuclear Physics

Modern Atomic and Nuclear Physics PDF Author: Fujia Yang
Publisher: World Scientific
ISBN: 9814277169
Category : Science
Languages : en
Pages : 812

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Book Description
"The textbook itself is the culmination of the authors' many years of teaching and research in atomic physics, nuclear and particle physics, and modern physics. It is also a crystallization of their intense passion and strong interest in the history of physics and the philosophy of science. Together with the solution manual which presents solutions to many end-of-chapter problems in the textbook, they are a valuable resource to the instructors and students working in the modern atomic field."--Publisher's website.

Coherence in Atomic Collision Physics

Coherence in Atomic Collision Physics PDF Author: H.J. Beyer
Publisher: Springer Science & Business Media
ISBN: 1475797451
Category : Science
Languages : en
Pages : 362

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Book Description
During the last two decades the experimental investigation of atomic coherence phenomena has made rapid progress. Detailed studies have been performed of angular correlations, spin polarization effects, angular momen tum transfer, and the alignment parameters which characterize the charge cloud of excited atoms. The enormous growth in the number of these investigations was made possible through substantial development and application of new experimental technology, the development of sophisti cated theoretical models and numerical methods, and a fine interplay between theory and experiment. This interplay has resulted in a deeper understanding of the physical mechanisms of atomic collision processes. It is the purpose of the chapters in this book to provide introductions for nonspecialists to the various fields of this area as well as to present new experimental and theoretical results and ideas. The interest in spin-dependent interactions in electron-atom scattering has a long history; it dates back to the early investigations of Mott in 1929. While the more traditional measurements in this field were concerned with the determination of spin polarization and asymmetries, the range of investi gations has been expanded enormously during the last few years and now includes many observables sensitive to one or more of the various spin dependent interactions. The understanding of these effects requires a theoretical description of the orientation and alignment parameters of the target atoms, of the forma tion of resonances, of the influence of electron-exchange processes, and of the relativistic interactions inside the atom and between projectile and target.

Semiclassical Descriptions of Atomic and Nuclear Collisions

Semiclassical Descriptions of Atomic and Nuclear Collisions PDF Author: J. Bang
Publisher: Elsevier
ISBN: 0444598383
Category : Science
Languages : en
Pages : 498

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Book Description
These proceedings contain the invited papers, both theoreticaland experimental presented at this symposium, the first of 3 heldin Copenhagen to honour Niels Bohr's hundredth birthday.

Many-body Theory Of Atomic Structure And Photoionization

Many-body Theory Of Atomic Structure And Photoionization PDF Author: Tu-nan Chang
Publisher: World Scientific
ISBN: 9814505773
Category : Science
Languages : en
Pages : 428

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Book Description
Detailed discussions on many of the recent advances in the many-body theory of atomic structure are presented by the leading experts around the world on their respective specialized approaches. Emphasis is given to the photoionization dominated by the resonance structures, which reveals the effect of the multi-electron interaction in atomic transitions involving highly correlated atomic systems. Recent experimental developments, stimulated by the more advanced applications of intense lasers and short wavelength synchrotron radiation, are also reviewed. This book brings together a comprehensive theoretical and experimental survey of the current understanding of the basic physical processes involved in atomic processes.

Atomic Physics of Highly Ionized Atoms

Atomic Physics of Highly Ionized Atoms PDF Author: Richard Marrus
Publisher: Springer Science & Business Media
ISBN: 1461337186
Category : Science
Languages : en
Pages : 571

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Book Description
The last decade has seen dramatic progress in the development of devices for producing mu1ticharged ions. Indeed it is now pos sible to produce any charge state of any ion right up through 92 fully-stripped uranium (U +). Equally dramatic progress has been achieved in the energy range of the available ions. As an example, fully-stripped neon ions have been produced in useable quantities with kinetic energies ranging from a few ev to more than 20 Gev. Interest in the atomic physics of multicharged ions has grown apace. In the fusion program, the spectra of these ions is an im portant diagnostic tool. Moreover the presence of mu1ticharged ions presents a serious energy loss mechanism in fusion devices. This fact has motivated a program to study the collision mech anisms involved. In another area, mu1ticharged ions are present in the solar corona and the interstellar medium and knowledge of their collision properties and spectra is essential to understand ing the astrophysics. Other possible applications are to x-ray lasers and heavy ion inertial fusion. On a more fundamental level, new possibilities for testing quantum electrodynamics with mu1ti charged ions have emerged.

Zero-Range Potentials and Their Applications in Atomic Physics

Zero-Range Potentials and Their Applications in Atomic Physics PDF Author: Yu.N. Demkov
Publisher: Springer Science & Business Media
ISBN: 146845451X
Category : Science
Languages : en
Pages : 287

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Book Description


Atomic Physics 8

Atomic Physics 8 PDF Author: I. Lindgren
Publisher: Springer Science & Business Media
ISBN: 1468445502
Category : Science
Languages : en
Pages : 591

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Book Description
The Eighth International Conference on Atomic Physics was held at Ch~lmers University of Technology, Goteborg, Sweden on August 2-6, 1982. Following the tradition established by earlier conferences in the series, it was attended by 280 participants from 24 countries. A total of 28 invited talks were delivered at the conference. These talks, which are presented in this volume, covered a wide range of topics in atomic physics in a broad sense. They extend from very basic problems (e.g., the interpretation of quantum mechanics in light of Bell's theorem and the feasibility of relativistic many-body calculations) to applied problems (e.g., laser detection of trace elements and spectroscopy of chemisorbed molecules). Professor M.Ya. Amusia was unable to attend the conference but his invited paper is included here. Professor V.S. Letokhov presented a talk entitled "Prospects of Laser Detection of Very Rare Isotopes, but was unable to provide a manuscript. At the conference, 175 post ers were presented. Abstracts have been published in a separate volume. It is very much appreciated that all the 1981 Nobel laureates, Nicolaas Bloembergen, Arthur Schawlow and Kai Siegbahn, were able to attend and deliver their invited talks. Professor Schawlow summed up the conference and this too is presented here. The con ference also benefited considerably from the presence of Professor 1.1. Rabi, who gave a much appreciated talk at the conference dinner. As this talk was given without a manuscript, it could unfortunately not be included here.