Photon and Electron Collisions with Atoms and Molecules

Photon and Electron Collisions with Atoms and Molecules

ONE- AND TWO-ELECTRON RESONANCES IN MOLECULAR PHOTOIONIZATION Robert W. ... the ability to compute accurate electron-molecule scattering wave functions and ...

Author: Philip G. Burke

Publisher: Springer Science & Business Media

ISBN: 9781461559177

Category: Science

Page: 386

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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.
Categories: Science

Connections Between Molecular Photoionization and Electron molecule Scattering with Emphasis on Shape Resonances

Connections Between Molecular Photoionization and Electron molecule Scattering with Emphasis on Shape Resonances

We approach this subject in two steps. First, we very briefly outline the well-established connections, e.g., the Bethe-Born theory and comparisons of isoelectronic systems.

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ISBN: OCLC:727286222

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Most of our detailed information on the spectroscopy and dynamics of the electronic continuum of molecules is based on the complementary probes - photoionization and electron scattering. Though usually studied separately, it is most useful to appreciate the connections between these two processes since our understanding of one is often the key to interpreting or even generating new results in the other. We approach this subject in two steps. First, we very briefly outline the well-established connections, e.g., the Bethe-Born theory and comparisons of isoelectronic systems. Then we focus on a point of contact - the role of shape resonances in molecular photoionization and electron-molecule scattering - for which a substantial amount of new information has become available. Specific topics include mapping of resonances from the neutral (h.nu. + molecule) to the negative ion (e + molecule) system, angular distributions, and interaction with vibration.
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Fundamental Processes of Atomic Dynamics

Fundamental Processes of Atomic Dynamics

W. CONNECTIONS BETWEEN SHAPE RESONANCES IN ELECTRON-MOLECULE SCATTERING AND IN MOLECULAR PHOTOIONIZATION AND RELATED CONNECTIONS At first glance, ...

Author: J.S.S. Briggs

Publisher: Springer Science & Business Media

ISBN: 9781468455441

Category: Science

Page: 706

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This volume contains the lectures presented at the NATO Advanced study Institute "Fundamental Processes of Atomic Dynamics" held in Maratea. Italy from September 20th to October 2nd 1987. The institute and this volume were conceived as a natural complement to previous institutes held in Maratea (1982) and in Santa Flavia (1984. ) whose proceedings are to be found in NATO ASI Series B vol. 103 and 134 respectively. The subject matter of these institutes was the study of the funda mental processes occurring in the interactions of atoms with photons. electrons and heavy-ions. The aim has been to unify these processes in a coherent experimen tal and theoretical approach. The present volume brings this approach up to date and contains in addition. for contrast and variety. a description of similar dynamical processes in the study of clusters and surfaces. The institute was opened with a lecture by Joe Macek in which he summarised the current status of atomic collision research. propounded the philosophy of a unified approach to structure, fragmentation and collision and posed the outstanding questions in the field. This lecture forms the introduction to this volume. The subject matter was divided into experiment and theory with the lectures inter-linked so that the one could re-inforce the other. The whole of the theoretical part of the institute was organised by Ugo Fano as an on-going symposium.
Categories: Science

Energy Research Abstracts

Energy Research Abstracts

Lamp series report ( Laser , Atomic and Molecular Physics ) . ... Two exact rigid body solutions for a rotating two - electron atom under the influence of a ...

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ISBN: MINN:30000006337103

Category: Power resources

Page:

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Categories: Power resources

ERDA Research Abstracts

ERDA Research Abstracts

Preliminary electron energy - loss spectra for molecular nitrogen have been ... scattering and molecular photoionization : the PI / sub g / resonance in e ...

Author: United States. Energy Research and Development Administration

Publisher:

ISBN: STANFORD:36105013133256

Category: Power resources

Page:

View: 101

Categories: Power resources

ERDA Energy Research Abstracts

ERDA Energy Research Abstracts

Fundamental molecular physics and chemistry . ... The multiple - scattering approach to molecular wavefunctions in the electronic continuum has been used ...

Author: United States. Energy Research and Development Administration. Technical Information Center

Publisher:

ISBN: MSU:31293010867137

Category: Force and energy

Page:

View: 693

Categories: Force and energy

ERDA Energy Research Abstracts

ERDA Energy Research Abstracts

orbital momentum of the outgoing photoelectron channel . ... atom or molecule involves the absorption , emission , or scattering of more than one photon .

Author: United States. Energy Research and Development Administration

Publisher:

ISBN: UOM:39015048721461

Category: Medicine

Page:

View: 601

Categories: Medicine

Nuclear Science Abstracts

Nuclear Science Abstracts

... 33 : 1801 ( AD / A - 004829 ) Scattering of molecular hydrogen and its i sotopes from crystal surfaces , 33 : 4048 HYDROGEN DEUTERIDE / ELECTRON - ION ...

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Publisher:

ISBN: MINN:31951T00248899S

Category: Nuclear energy

Page:

View: 159

Categories: Nuclear energy

VUV and Soft X Ray Photoionization

VUV and Soft X Ray Photoionization

The similarity of single scattering spectra between both molecules shows that the ... with the photoelectron spectroscopy measurements of Ferrettetal.

Author: Uwe Becker

Publisher: Springer Science & Business Media

ISBN: 9781461303152

Category: Science

Page: 651

View: 556

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.
Categories: Science

Electron Molecule and Photon Molecule Collisions

Electron Molecule and Photon Molecule Collisions

1 2 scattering model (CMSM) was developed ' as a survey tool and, ... special emphasis on the role of shape resonances in several electron-molecule systems.

Author: T.N. Rescigno

Publisher: Springer Science & Business Media

ISBN: 9781468469882

Category: Technology & Engineering

Page: 355

View: 445

The First Asilomar Conference on Electron- and Photon-Molecule Collisions was held August 1-4, 1978 in Pacific Grove, California. This meeting brought together forty scientists who are actively involved in theoretical studies of electron scattering by, and photoionization of, small molecules. In this volume, are collected the contributions of the invited speakers, as well as the roundtable and evening discussions condensed from taped recordings of the entire proceedings. The subject matter reflects current activity in the field and describes many of the techniques that are being developed and applied to molecular collision problems. We would like to thank the Air Force Office of Scientific Research (AFOSR) and the Office of Naval Research (ONR) for providing the financial support that made this conference possible. Special thanks are due to Dr. Robert Junker of ONR and Dr. Ralph Kelley of AFOSR for the interest and encouragement they provided in all phases of this meeting. We also thank all the participants whose efforts and contributions made this conference a success. Finally, we thank Ms. Charlotte MacNaughton and Ms. Sara Jackson for the many hours they spent transcribing tapes and preparing this volume for publication.
Categories: Technology & Engineering

Attosecond and XUV Physics

Attosecond and XUV Physics

Two additional methods based on the wavefunction expansion given in Eq. (9.25) have been extensively applied to electronmolecule collisions but have been ...

Author: Thomas Schultz

Publisher: John Wiley & Sons

ISBN: 9783527677658

Category: Science

Page: 624

View: 783

This book provides fundamental knowledge in the fields of attosecond science and free electron lasers, based on the insight that the further development of both disciplines can greatly benefit from mutual exposure and interaction between the two communities. With respect to the interaction of high intensity lasers with matter, it covers ultrafast lasers, high-harmonic generation, attosecond pulse generation and characterization. Other chapters review strong-field physics, free electron lasers and experimental instrumentation. Written in an easy accessible style, the book is aimed at graduate and postgraduate students so as to support the scientific training of early stage researchers in this emerging field. Special emphasis is placed on the practical approach of building experiments, allowing young researchers to develop a wide range of scientific skills in order to accelerate the development of spectroscopic techniques and their implementation in scientific experiments. The editors are managers of a research network devoted to the education of young scientists, and this book idea is based on a summer school organized by the ATTOFEL network.
Categories: Science

Mass Spectrometry

Mass Spectrometry

The major two categories are shape resonances and Feshbach resonances. There is a close connection between shape resonances in electron-molecule scattering ...

Author: M E Rose

Publisher: Royal Society of Chemistry

ISBN: 9781847556660

Category: Science

Page: 500

View: 927

Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry. For over 80 years the Royal Society of Chemistry and its predecessor, the Chemical Society, have been publishing reports charting developments in chemistry, which originally took the form of Annual Reports. However, by 1967 the whole spectrum of chemistry could no longer be contained within one volume and the series Specialist Periodical Reports was born. The Annual Reports themselves still existed but were divided into two, and subsequently three, volumes covering Inorganic, Organic and Physical Chemistry. For more general coverage of the highlights in chemistry they remain a 'must'. Since that time the SPR series has altered according to the fluctuating degree of activity in various fields of chemistry. Some titles have remained unchanged, while others have altered their emphasis along with their titles; some have been combined under a new name whereas others have had to be discontinued. The current list of Specialist Periodical Reports can be seen on the inside flap of this volume.
Categories: Science

Catalog of National Bureau of Standards Publications 1966 1976

Catalog of National Bureau of Standards Publications  1966 1976

Configuration interaction ; KCI ; Radiative process ; Two electron processes ; X - ray ... Resonance scattering ; Scattering theory ; Unimolecular kinetics ...

Author: United States. National Bureau of Standards. Technical Information and Publications Division

Publisher:

ISBN: UOM:39015086505636

Category: Government publications

Page:

View: 440

Categories: Government publications

Wavefunctions and Mechanisms from Electron Scattering Processes

Wavefunctions and Mechanisms from Electron Scattering Processes

SHAPE RESONANCES IN ELECTRON - POLY ATOMIC MOLECULES COLLISIONS Michel TRONC, ... (1,2) Moreover a clear connection has been established between the shape ...

Author: F.A. Gianturco

Publisher: Springer Science & Business Media

ISBN: 9783642465024

Category: Science

Page: 283

View: 449

Categories: Science

Publications of the National Institute of Standards and Technology Catalog

Publications of the National Institute of Standards and Technology     Catalog

ATOMIC & MOLECULAR STUDIES Atomic Branching Ratio Data for Carbon - Like lons . ... PB94-185329 04.447 Backscattering in Electron - Impact Excitation of ...

Author: National Institute of Standards and Technology (U.S.)

Publisher:

ISBN: OSU:32435067293787

Category:

Page:

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Electron Molecule Scattering and Photoionization

Electron Molecule Scattering and Photoionization

OO | 2 3 4 5 v'=O Q(1) O | 2 3 4 5 ELECTRON KINETIC ENERGY (eV) Figure 6. REMPI-PES spectra of H2 determined at th? #avelengths of the resonant three photon ...

Author: P.G. Burke

Publisher: Springer Science & Business Media

ISBN: 9781461310495

Category: Science

Page: 272

View: 162

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.
Categories: Science

NBS Special Publication

NBS Special Publication

10032 Drukarev , G. F. , and Yurova , I. Yu . , Multiple - Scattering Approach to the Vibrational - Rotational Excitation of Molecules by Slow Electrons ...

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ISBN: MINN:30000010257271

Category: Weights and measures

Page:

View: 928

Categories: Weights and measures

Publications of the National Bureau of Standards Catalog

Publications of the National Bureau of Standards     Catalog

rate Resonance fluorescence ; Absolute constants ; Atommolecule reactions ; Chlorine atoms ... He through Xe ; One and two electron excitation ; 9915.

Author: United States. National Bureau of Standards

Publisher:

ISBN: OSU:32435028396430

Category:

Page:

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