Hans Kleinpoppen's Books

Analysis of Excitation and Ionization of Atoms and Molecules by Electron Impact

By: Afzal Chaudhry,Hans Kleinpoppen

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Analysis of Excitation and Ionization of Atoms and Molecules by Electron Impact

By: Afzal Chaudhry,Hans Kleinpoppen

The content of this book describes in detail the results of the present measurements of the partial and total doubly differential cross sections for the multiple-ionization of rare gas atoms by electron impact. These measurements show, beside other trends, the role of Auger transitions in the production of multiply ionized atoms in the region where the incident electron energy is sufficient to produce inner shell ionization. Other processes like Coster-Kronig transitions and shake off also contribute towards increasing the charge of the ions. The incident electron having energy of 6 keV, for example, in a collision with xenon atom can remove up to nine electrons! (*) X-ray-ion coincidence spectroscopy of the electron xenon atom collisions is also described. The present measurements of doubly differential cross sections for the dissociative and non-dissociative ionization of hydrogen, sulfur dioxide and sulfur hexa fluoride molecular gases by electron impact are also described in the text of this book. The results of the measurements for sulfur dioxide molecule show how this major atmospheric pollutant can be removed from the atmosphere by electron impact dissociation of this molecule. The present results of the measurements for sulfur hexa fluoride give an insight into the dissociation properties of this molecular gas, which is being so widely used as a gaseous insulator in the electrical circuits. The book also describes the present measurements of the polarization parameters of the fluorescence radiation emitted by the electron-impact-excited atoms of sodium and potassium. In these investigations the target atoms are polarized, therefore, the measurements of the polarization parameters give information about the electron atom interaction in terms of the interference, direct and exchange interaction channels.

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Page Count

236

Publisher

Springer Science & Business Media

Published Date

ISBN 10

1441969470

ISBN 13

9781441969477

Perfect/Complete Scattering Experiments

Probing Quantum Mechanics on Atomic and Molecular Collisions and Coincidences

By: Hans Kleinpoppen,Bernd Lohmann,Alexei N. Grum-Grzhimailo

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Perfect/Complete Scattering Experiments

Probing Quantum Mechanics on Atomic and Molecular Collisions and Coincidences

By: Hans Kleinpoppen,Bernd Lohmann,Alexei N. Grum-Grzhimailo

The main goal of this book is to elucidate what kind of experiment must be performed in order to determine the full set of independent parameters which can be extracted and calculated from theory, where electrons, photons, atoms, ions, molecules, or molecular ions may serve as the interacting constituents of matter. The feasibility of such perfect' and-or `complete' experiments, providing the complete quantum mechanical knowledge of the process, is associated with the enormous potential of modern research techniques, both, in experiment and theory. It is even difficult to overestimate the role of theory in setting of the complete experiment, starting with the fact that an experiment can be complete only within a certain theoretical framework, and ending with the direct prescription of what, and in what conditions should be measured to make the experiment `complete'. The language of the related theory is the language of quantum mechanical amplitudes and their relative phases. This book captures the spirit of research in the direction of the complete experiment in atomic and molecular physics, considering some of the basic quantum processes: scattering, Auger decay and photo-ionization. It includes a description of the experimental methods used to realize, step by step, the complete experiment up to the level of the amplitudes and phases. The corresponding arsenal includes, beyond determining the total cross section, the observation of angle and spin resolved quantities, photon polarization and correlation parameters, measurements applying coincidence techniques, preparing initially polarized targets, and even more sophisticated methods. The `complete' experiment is, until today, hardly to perform. Therefore, much attention is paid to the results of state-of-the-art experiments providing detailed information on the process, and their comparison to the related theoretical approaches, just to mention relativistic multi-configurational Dirac-Fock, convergent close-coupling, Breit-Pauli R-matrix, or relativistic distorted wave approaches, as well as Green's operator methods. This book has been written in honor of Herbert Walther and his major contribution to the field but even to stimulate advanced Bachelor and Master students by demonstrating that obviously nowadays atomic and molecular scattering physics yields and gives a much exciting appreciation for further advancing the field.

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Page Count

350

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642405142

ISBN 13

9783642405143

Atom, Molecule, and Cluster Beams II

Cluster Beams, Fast and Slow Beams, Accessory Equipment and Applications

By: Hans Pauly

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Atom, Molecule, and Cluster Beams II

Cluster Beams, Fast and Slow Beams, Accessory Equipment and Applications

By: Hans Pauly

This book completes the physical foundations and experimental techniques described in volume 1 with an updated review of the accessory equipment indispensable in molecular beam experiments. It extends the subject to cluster beams and beams of hyperthermal and subthermal energies.

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Page Count

391

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3662059029

ISBN 13

9783662059029

Atom, Molecule, and Cluster Beams I

Basic Theory, Production and Detection of Thermal Energy Beams

By: Hans Pauly

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Atom, Molecule, and Cluster Beams I

Basic Theory, Production and Detection of Thermal Energy Beams

By: Hans Pauly

A consistent, up-to-date description of the extremely manifold and varied experimental techniques which nowadays enable work with neutral particles. Th book lays the physical foundations of the various experimental techniques, which utilize methods from most fields in physics.

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Page Count

362

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3662042134

ISBN 13

9783662042137

Photons in Natural and Life Sciences

An Interdisciplinary Approach

By: Hans-Joachim Lewerenz

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Photons in Natural and Life Sciences

An Interdisciplinary Approach

By: Hans-Joachim Lewerenz

The book describes first the principle photon generation processes from nuclear reactions, electron motion and from discrete quantum transitions. It then focuses on the use of photons in various selected fields of modern natural and life sciences. It bridges disciplines such as physics, chemistry, earth- and materials science, proteomics, information technology, photoelectrochemistry, photosynthesis and spintronics. Advanced light sources and their use in natural and life sciences are emphasized and the effects related to the quantum nature of photons (quantum computing, teleportation) are described. The content encompasses among many other examples the role of photons on the origin of life and on homochirality in biology, femtosecond laser slicing, photothermal cancer therapy, the use of gamma rays in materials science, photoelectrochemical surface conditioning, quantum information aspects and photo-spintronics. The book is written for scientists and graduate students from all related disciplines who are interested in the science beyond their immediate research field. It is meant to encourage interdisciplinary research and development in an age where nanoscience results in a convergence of formerly more disparate science.

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Page Count

301

Publisher

Springer

Published Date

ISBN 10

3642237495

ISBN 13

9783642237492

Spectral Line Broadening by Plasmas

By: Hans Griem

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Spectral Line Broadening by Plasmas

By: Hans Griem

Spectral Line Broadening by Plasmas deals with spectral line broadening by plasmas and covers topics ranging from quasi-static approximation and impact approximation to intermediate approximations and correlation effects. Experimental results for hydrogen lines, lines with forbidden components, and ionized helium lines are presented. Applications such as density and temperature measurements are also considered. Comprised of four chapters, this volume begins with an overview of the effects of electric fields from electrons and ions (both acting as point charges) on spectral line shapes. The next chapter surveys theoretical work, paying particular attention to quasi-static, impact, and intermediate approximations as well as correlation effects. Stark broadening experiments are then discussed, with special emphasis on experiments capable of checking the accuracy or validity limits of the various approximations. The final chapter is devoted to applications in laboratory plasma physics and astronomy, focusing on density and temperature measurements and opacity calculations as well as the analysis of stellar atmospheres, amplitudes and spectra of plasma waves, and radio frequency lines. This book should appeal to students, practitioners, and researchers in pure and applied physics.

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Page Count

425

Publisher

Elsevier

Published Date

ISBN 10

0323150942

ISBN 13

9780323150941

Introduction to Plasma Spectroscopy

By: Hans-Joachim Kunze

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Introduction to Plasma Spectroscopy

By: Hans-Joachim Kunze

Although based on lectures given for graduate students and postgraduates starting in plasma physics, this concise introduction to the fundamental processes and tools is as well directed at established researchers who are newcomers to spectroscopy and seek quick access to the diagnostics of plasmas ranging from low- to high-density technical systems at low temperatures, as well as from low- to high-density hot plasmas. Basic ideas and fundamental concepts are introduced as well as typical instrumentation from the X-ray to the infrared spectral regions. Examples, techniques and methods illustrate the possibilities. This book directly addresses the experimentalist who actually has to carry out the experiments and their interpretation. For that reason about half of the book is devoted to experimental problems, the instrumentation, components, detectors and calibration.

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Page Count

242

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642022332

ISBN 13

9783642022333

Magnetism

From Fundamentals to Nanoscale Dynamics

By: Joachim Stöhr,Hans Christoph Siegmann

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Magnetism

From Fundamentals to Nanoscale Dynamics

By: Joachim Stöhr,Hans Christoph Siegmann

This text book gives a comprehensive account of magnetism, one of the oldest yet most vibrant fields of physics. It spans the historical development, the physical foundations and the continuing research underlying the subject. The book covers both the classical and quantum mechanical aspects of magnetism and novel experimental techniques. Perhaps uniquely, it discusses spin transport and magnetization dynamics phenomena associated with atomically and spin engineered nano-structures against the backdrop of spintronics and magnetic storage and memory applications. The book is for students, and serves as a reference for scientists in academia and research laboratories.

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