Download or read book Study of Slow Multiply Charged Ion atom Collisions Using Translational Energy written by Jacqueline Hodkinson and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Slow Multiply Charged Ion atom Collisions Using Translational Energy Spectroscopy written by Jacqueline Hodgkinson and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collisions Between Slow Highly Charged Ions and Surfaces written by James Andrew Perez and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The two-center classical trajectory Monte Carlo (CTMC) method has been modified to incorporate multiple target centers. This multiple-center method has been used to investigate the dynamics of collisions between slow, highly charged ions and surfaces. The above-surface dynamics of a projectile with charge q = 6,10,18,36, and 54+, impacting a LiF (100) surface was studied for impact energies ranging from 0.25 eV/u to 2.25 keV/u, with velocities normal to the surface. The critical distance for capture, and the energy levels populated by the captured electrons were calculated. We find that electron recapture from the projectile by the surface begins immediately after the charge transfer begins and dominates over autoionization until the projectile gets very close to the surface. When the projectile is a few atomic units above the surface, the simultaneous capture of electrons becomes evident as a dramatic increase in the number of autoionization events. The projectiles potential energy is deposited to the surface at a much higher rate in the plane of the surface than in the longitudinal direction of the incoming projectile. Above-surface energy gains were found to agree with experimental measurements. A study was also made of Xe44 moving through amorphous carbon with an impact energy of 3.6 keV/u, directed perpendicular to the surface. Approximately 36% of the projectiles available potential energy was found to be deposited to an area of the surface 4 nm in diameter, consistent with experimental observations. The CTMC results were then employed in a calculation of the deexcitation time. The calculated time for the projectile to deexcite was found to differ from experimental observations by an order of magnitude, an indication that the scaled Auger rates used in the calculation need to be increased by a like amount"--Abstract, leaf iv
Download or read book Advances in Atomic Molecular and Optical Physics written by and published by Elsevier. This book was released on 1994-07-26 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest volume in the highly acclaimed series addresses atomic collisions, assessing the status of the current knowledge, identifying deficiencies, and exploring ways to improve the quality of cross-section data.Eleven articles, written by foremost experts, focus on cross-section determination by experiment or theory, on needs in selected applications, and on efforts toward the compilation and dissemination of data. This is the first volume edited under the additional direction of Herbert Walther. Presents absolute cross sections for atomic collisions Uses benchmark measurements and benchmark calculations Discusses needs for cross-section data in applications Contains a guide to data resources, bibliographies, and compendia
Download or read book Physics of Ion Impact Phenomena written by Deepak Mathur and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last ten years an unprecedented effort has been directed towards study of the dynamics of ion collision phenomena in the gas phase, usually with a view to applications in diverse areas, ranging from fusion reactors and lasers to ionospheric and interstellar chemistry and gaseous electronics. The principal aim of this volume is to present a succinct overview of contemporary interests and trends in the field of low energy ion-electron and ion-atom (molecule) collision physics, with emphasis on fundamental aspects. Researchers and students will become acquainted, in a general and fairly non-specialized fashion, with recent progress in this area of continuing intense activity. The material is divided into two parts, dealing with atomic ions and molecular ions. Each of the nine chapters has been prepared by authors who are amongst the most eminent practitioners of contemporary ion collision physics. The book is dedicated to Professor J.B. Hasted, one of the pioneering workers who, in the course of his forty year career, helped establish atomic collision physics as a field in its own right.
Download or read book Lectures on Ion Atom Collisions written by Jörg Eichler and published by Elsevier. This book was released on 2005-09-23 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomic collisions offer some unique opportunities to study atomic structure and reaction mechanisms in experiment and theory, especially for projectiles of high atomic number provided by modern accelerators. The book is meant as an introduction into the field and provides some basic theoretical understanding of the atomic processes occurring when a projectile hits another atom. It also furnishes the tools for a mathematical description, however, without going deeper into the technical details, which can be found in the literature given. With this aim, the focus is on reactions, in which only a single active electron participates. Collisional excitation, ionization and charge transfer are discussed for collision velocities ranging from slow to comparable to the speed of light. For the highest projectile velocities, energy can be converted into mass, so that electron-positron pairs are created. In addition to the systematic treatment, a theoretical section specializes on electron-electron correlations and three chapters are devoted to selected highlights bordering to surface science and to physics with antiprotons. * Simple access to the theory of collisions between ions and atoms * Systematic treatment of basic features needed for an understanding * Mathematical details are omitted and referred to references * In order to bear out the essential ideas most clearly, a single active electron is assumed in most cases * In selected examples, theoretical results are confronted with experiment * Discussion supported by a large number of illustrations * Selected highlights in borderline fields are presented
Download or read book Atomic And Molecular Physics Proceedings Of The Fourth Us mexico Symposium written by Thomas J Morgan and published by World Scientific. This book was released on 1995-09-30 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: This meeting continues the series tradition of previous meetings by focussing on the recent changes in our understanding of the behaviour of atomic and molecular few body systems. The diversity of research areas represented at the meeting coupled to a common focal point, reveals different perspective on basic questions of interest, and exposes new conceptual approachs to the dynamics of few body problems. Special emphasis on topics such as collisional behaviour, threshold phenomena, recombination and photoionizations provides a broad overview of the field.
Download or read book International Conference on the Physics of Multiply Charged Ions and International Workshop on E C R Ion Sources written by S. Bliman and published by . This book was released on 1989 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electronic and Atomic Collisions written by and published by . This book was released on 1985 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fiscal Year 1986 Department of Energy Authorization basic Research Programs written by United States. Congress. House. Committee on Science and Technology. Subcommittee on Energy Development and Applications and published by . This book was released on 1985 with total page 1160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book State of the art Reviews On Energetic Ion atom And Ion molecule Collisions written by Dzevad Belkic and published by World Scientific. This book was released on 2019-10-17 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based upon a part of the invited and contributing talks at the 25th International Symposium on Ion-Atom Collisions, ISIAC (biennial), held on July 23-25, 2017 in Palm Cove, Queensland, Australia. To aid the general reader, all the authors tried to present their chapters in the context of the development of the addressed particular themes and the underlying major ideas and intricacies. Some chapters contain new results that have not been previously published elsewhere. Whenever possible, the authors made their attempts to connect the basic research in atomic and molecular collision physics with some important applications in other branches of physics as well as across the physics borders. It is hoped that the material presented in this book will be interesting and useful to the beginners and specialists alike. The contents and expositions are deemed to be helpful to the beginners in assessing the potential overlap of some of the presented material with their own research themes and this might provide motivations for possible further upgrades. Likewise, specialists could take advantage of these reviews to see where the addressed themes were and where they are going, in order to acknowledge the fruits of the efforts made thus far and actively contribute to tailoring the directions of future research. Overall, this book is truly interdisciplinary. It judiciously combines experiments and theories within particle collision physics on atomic and molecular levels. It presents state-of-the-art fundamental research in this field. It addresses the possibilities for significant and versatile applications outside standard atomic and molecular collision physics ranging from astrophysics, surface as well as cluster physics/chemistry, hadron therapy in medicine and to the chemical industry. It is then, as Volume 2, fully in the spirit of the 'Aims and Scope' of this book series by reference to its 'Mission Statement'.
Download or read book Atomic Collisions with Multiply Charged Ions written by Harold K. Haugen and published by . This book was released on 1982 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electronic and Atomic Collisions written by M. J. Coggiola and published by North Holland. This book was released on 1985 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Excited State Formation in Slow Multiply charged Ion atom Collisions written by Thomas Kevin McLaughlin and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Data Index for Energy Transfer Collisions of Atoms and Molecules 1970 1979 written by and published by . This book was released on 1981 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collision Studies on Multiply Charged Ions written by Edward Pollack and published by . This book was released on 1982 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gaseous discharges contains ions in a number of charge states. Collisions between these ions and atoms in the discharge result in the production of excited ions and atoms as well as free electrons. Single electron capture collisions involving doubly charged ions with atoms are particularly important in determining the behavior of the discharge since they result in two ions with one generally in an excited state. Such collisions are not well understood. In this context we have studied electron capture in Ar(2+) + Ar because of the importance of argon as a discharge gas and because there were substantial difficulties in understanding single electron capture processes in the collision. Our laboratory has measured the cross sections for the important final channels in the single electron capture collisions as well as the direct scattering and for the double electron capture cases. It is particularly interesting that the direct scattering does not occur with Ar target excitation as was found in Ar(+) + Ar. We have also shown that long lived highly excited states of Ar(2+) make important contributions to the charge exchange. We interpret our results and propose a simple model of the collision.
