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.

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.

Atomic Physics of Highly Ionized Atoms

Atomic Physics of Highly Ionized Atoms PDF Author: Richard Marrus
Publisher:
ISBN: 9781461337195
Category :
Languages : en
Pages : 584

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Book Description


Physics of Highly-Ionized Atoms

Physics of Highly-Ionized Atoms PDF Author: Richard Marrus
Publisher: Springer Science & Business Media
ISBN: 146130833X
Category : Science
Languages : en
Pages : 474

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Book Description
The progress in the physics of highly-ionized atoms since the last NATO sponsored ASI on this subject in 1982 has been enormous. New accelerator facilities capable of extending the range of highly-ionized ions to very high-Z have come on line or are about to be completed. We note particularly the GANIL accelerator in Caen, France, the Michigan State Superconducting Cyclotrons in East Lansing both of which are currently operating and the SIS Accelerator in Darmstadt, FRG which is scheduled to accelerate beam in late 1989. Progress i~ low-energy ion production has been equally dramatic. The Lawrence Livermore Lab EBIT device has produced neon-like gold and there has been continued improvement in ECR and EBIS sources. The scientific developments in this field have kept pace with the technical developments. New theoretical methods for evaluating relativistic and QED effects have made possible highly-precise calcula tions of energy levels in one-and two-electron ions at high-Z. The calculations are based on the MCDF method and the variational method and will be subject to rigorous experimental tests. On the experimental side, precision x-ray and UV measurements have probed the Lamb shift in the one and two electron ions up to Z=36 with increasing precision.

Physics of Highly-Ionized Atoms

Physics of Highly-Ionized Atoms PDF Author: Richard Marrus
Publisher:
ISBN: 9781461308348
Category :
Languages : en
Pages : 484

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Book Description


Highly Excited Atoms

Highly Excited Atoms PDF Author: J. P. Connerade
Publisher: Cambridge University Press
ISBN: 0521432324
Category : Science
Languages : en
Pages : 527

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Book Description
An introduction to the physics of highly excited, easily perturbed or interacting atoms. Covers Rydberg states, quantum defect theory, atomic f-values, centrifugal barrier effects, autoionisation, inner shell and double excitation spectra, K-matrix theory, atoms in high laser fields, statistical methods, quantum chaos, and atomic effects in solids.

The Effects of Relativity in Atoms, Molecules, and the Solid State

The Effects of Relativity in Atoms, Molecules, and the Solid State PDF Author: Stephen Wilson
Publisher: Springer Science & Business Media
ISBN: 1461537029
Category : Science
Languages : en
Pages : 341

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Book Description
Recent years have seen a growing interest in the effects of relativity in atoms, molecules and solids. On the one hand, this can be seen as result of the growing awareness of the importance of relativity in describing the properties of heavy atoms and systems containing them. This has been fueled by the inadequacy of physical models which either neglect relativity or which treat it as a small perturbation. On the other hand, it is dependent upon the technological developments which have resulted in computers powerful enough to make calculations on heavy atoms and on systems containing heavy atoms meaningful. Vector processing and, more recently, parallel processing techniques are playing an increasingly vital role in rendering the algorithms which arise in relativistic studies tractable. This has been exemplified in atomic structure theory, where the dominant role of the central nuclear charge simplifies the problem enough to permit some prediction to be made with high precision, especially for the highly ionized atoms of importance in plasma physics and in laser confinement studies. Today's sophisticated physical models of the atom derived from quantum electrodynamics would be intractable without recourse to modern computational machinery. Relativistic atomic structure calculations have a history dating from the early attempts of Swirles in the mid 1930's but continue to provide one of the primary test beds of modern theoretical physics.

Advances in Atomic and Molecular Physics

Advances in Atomic and Molecular Physics PDF Author: David Robert Bates
Publisher:
ISBN:
Category : Atoms
Languages : en
Pages : 312

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Book Description


High-Resolution Experiments on Strong-Field Ionization of Atoms and Molecules

High-Resolution Experiments on Strong-Field Ionization of Atoms and Molecules PDF Author: Lutz Fechner
Publisher: Springer
ISBN: 9783319320458
Category : Science
Languages : en
Pages : 0

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Book Description
In this thesis, the ionization of atoms and small molecules in strong laser fields is experimentally studied using a reaction microscope. The population of autoionizing doubly excited states in the laser fields is proven and a possible connection to the well-known dielectronic recombination processes is discussed. The fundamental process of tunnel ionization in strong laser fields is subject of investigation in a pump-probe experiment with ultrashort laser pulses. A coherent superposition of electronic states in singly charged argon ions is created within the first, and subsequently tunnel-ionized with the second pulse. This gives access to state-selective information about the tunneling process and allows to test common models. Moreover, the ionization of krypton and argon at different wavelengths is studied, from the multiphoton to the tunneling regime. The wavelength-dependent investigations are furthermore extended to molecular hydrogen. In addition to ionization, this system might undergo different dissociative processes. Channel-selective electron momentum distributions are presented and compared to each other.

Introduction to the Physics of Highly Charged Ions

Introduction to the Physics of Highly Charged Ions PDF Author: Heinrich F. Beyer
Publisher: CRC Press
ISBN: 9780750304818
Category : Science
Languages : en
Pages : 361

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Book Description
Emphasizing a physical understanding with many illustrations, Introduction to the Physics of Highly Charged Ions covers the major areas of x-ray radiation and elementary atomic processes occurring with highly charged ions in hot laboratory and astrophysical plasmas. Topics include light and ion sources, spectroscopy, atomic structure, magnetic and QED effects, and a thorough look at atomic collisions, from elementary processes in plasmas to ion-surface interaction and hollow atoms. Avoiding unnecessary mathematical details, this book is accessible to a broad range of readers, including graduate students and researchers.

Fast Ion-atom and Ion-molecule Collisions

Fast Ion-atom and Ion-molecule Collisions PDF Author: Dzevad Belkic
Publisher: World Scientific
ISBN: 9814407135
Category : Science
Languages : en
Pages : 335

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Book Description
The principal goal of this book is to provide state-of-the-art coverage of the non-relativistic three- and four-body theories at intermediate and high energy ion-atom and ion-molecule collisions. The focus is on the most frequently studied processes: electron capture, ionization, transfer excitation and transfer ionization. The content is suitable both for graduate students and experienced researchers. For these collisions, the literature has seen enormous renewal of activity in the development and applications of quantum-mechanical theories. This subject is of relevance in several branches of science and technology, like accelerator-based physics, the search for new sources of energy and high temperature fusion of light ions. Other important applications are in life sciences via medicine, where high-energy ion beams are used in radiotherapy for which a number of storage ring accelerators are in full operation, under construction or planned to be built worldwide. Therefore, it is necessary to review this field for its most recent advances with an emphasis on the prospects for multidisciplinary applications.This book is accompanied by Interdisciplinary Research on Particle Collisions and Quantitative Spectroscopy Volume 2 - Fast Collisions of Light Ions with Matter: Charge Exchange and Ionization.