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Photoionization of Atoms and Molecules

Photoionization of Atoms and Molecules
Author: Fred Loomis Mohler
Publisher:
Total Pages: 52
Release: 1962
Genre: Ionization of gases
ISBN:

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This is a review of experimental results on photoionization of atoms and some molecules. There are some quantitative data on all the alkalis, magnesium, calcium and thallium and all rare gases except xenon. Results are given for the common gases: hydrogen, nitrogen, oxygen, CO, CO2, NO, NO2, H2O and CH4. Autoionization, excitation to a state above the ionization threshold followed by transition to the ionized state, can be an important factor. Often the broad autoionization lines mask the true continuum. There are some mass spectrometric measurements of photoionization products for most of these molecules.


VUV and Soft X-Ray Photoionization

VUV and Soft X-Ray Photoionization
Author: Uwe Becker
Publisher: Springer Science & Business Media
Total Pages: 678
Release: 2012-12-06
Genre: Science
ISBN: 146130315X

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Leading investigators offer the first comprehensive study of gas phase photoionization research in the VUV and soft X-ray regime since the massive employment of synchrotron radiation as a spectroscopic tool. Chapters cover all aspects of photoionization phenomena from total cross sections to highly differentiated measurements such as coincidence experiments and spin-resolved electron spectroscopy. This work is abundant with illustrations.


Photon and Electron Collisions with Atoms and Molecules

Photon and Electron Collisions with Atoms and Molecules
Author: Philip G. Burke
Publisher: Springer Science & Business Media
Total Pages: 384
Release: 2012-12-06
Genre: Science
ISBN: 1461559170

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Research on photon and electron collisions with atomic and molecular targets and their ions has seen a rapid increase in interest, both experimentally and theoretically, in recent years. This is partly because these processes provide an ideal means of investigating the dynamics of many particle systems at a fundamental level and partly because their detailed understanding is required in many other fields, particularly astrophysics, plasma physics and controlled thermonuclear fusion, laser physics, atmospheric processes, isotope separation, radiation physics and chemistry and surface science. In recent years a number of important advances have been made, both on the experimental side and on the theoretical side. On the experimental side these include absolute measurements of cross sections, experiments using coincidence techniques, the use of polarised beams and targets, the development of very high energy resolution electron beams, the use of synchrotron radiation sources and ion storage rings, the study of laser assisted atomic collisions, the interaction of super-intense lasers with atoms and molecules and the increasing number of studies using positron beams.


Photoionization and Photodetachment

Photoionization and Photodetachment
Author: Cheuk-Yiu Ng
Publisher: World Scientific
Total Pages: 731
Release: 2000
Genre: Science
ISBN: 9810238924

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Owing to the advances of vacuum ultraviolet and ultrafast lasers and third generation synchrotron sources, the research on photoionization, photoelectrons, and photodetachment has gained much vitality in recent years. These new light sources, together with ingenious experimental techniques, such as the coincidence imaging, molecular beam, pulsed field ionization photoelectron, mass-analyzed threshold ion, and pulsed field ion pair schemes, have allowed spectroscopic, dynamic, and energetic studies of gaseous species to a new level of detail and accuracy. Profitable applications of these methods to liquids are emerging.This invaluable two-volume review consists of twenty-two chapters, focusing on recent developments in photoionization and photodetachment studies of atoms; molecules, transient species, clusters, and liquids.


Laser Photoionization Spectroscopy

Laser Photoionization Spectroscopy
Author: Vladilen Letokhov
Publisher: Elsevier
Total Pages: 364
Release: 2012-12-02
Genre: Technology & Engineering
ISBN: 0323154085

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Laser Photoionization Spectroscopy discusses the features and the development of photoionization technique. This book explores the progress in the application of lasers, which improve the characteristics of spectroscopic methods. Organized into 12 chapters, this book starts with an overview of the fundamentals of the method for atoms and molecules. This text then examines the photoionization spectroscopy, which is based on the laser resonant excitation of particles into high-lying quantum states that are easy to detect by ionization. Other chapters explain the various basic schemes of multistep excitation, which can be used for resonance photoionization of molecules. This book discusses as well the different applications of the resonance photoionization technique in atomic and molecular spectroscopy. The final chapter considers the two well-known types of microscopy, namely, wave and corpuscular. This book is a valuable resource for chemists, physicists, analysts, and geochemists who are interested in laser spectroscopy techniques to solve nontrivial problems.


Many-body Theory of Atomic Structure and Photoionization

Many-body Theory of Atomic Structure and Photoionization
Author: Tu-nan Chang
Publisher: World Scientific
Total Pages: 434
Release: 1993
Genre: Science
ISBN: 9789810208776

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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.


Electron-Molecule Scattering and Photoionization

Electron-Molecule Scattering and Photoionization
Author: P.G. Burke
Publisher: Springer Science & Business Media
Total Pages: 275
Release: 2012-12-06
Genre: Science
ISBN: 1461310490

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This volume contains the invited papers and selected contributed papers presented at the International Symposium on 'Electron-Molecule Scattering and Photoionization' held at SERC's Daresbury Laboratory, Cheshire, England from 18th to 19th July, 1987. This Symposium was a Satellite Meeting to the XVth International Conference on the Physics of Electronic and Atomic Collisions (ICPEAC I and follows a tradition of Satellite Meetings i. n related areas of collisions held in association with previous ICPEAC's. In order to make this volume as representative of the Symposium as possible 'Hot Topics' presented orally at the meeting together with a few papers selected by the Programme Committee from the contributed posters are included. The Editors are grateful to the authors for responding rapidly to the invitation to submit their contri butions for inclusion in the volume, as indeed they are grateful to all the authors for the high quality of their contributions. The Symposium brought together over 100 scientists from many countries and from broad interdisciplinary backgrounds to hear about current rapid advances in electron-molecule scatteri. ng and photoioniza tion. These advances have been stimulated on the experimental side by the increasing availability of electron beams with millivolt energy resolution, by synchrotron radiation sources and by intense tunable lasers. On the theoretical side the introduction of new computational methods enables accurate predictions to be made, resulting in a new and deeper understanding of the basic physical processes involved.