Download or read book Electron Impact Cross Sections written by and published by DIANE Publishing. This book was released on with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electron Impact Ionization written by T.D. Märk and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is perhaps surprising that a process which was one of the first to be studied on an atomic scale, and a process which first received attention over seven decades ago, continues to be the object of diverse and intense research efforts. Such is the case with the (seemingly) conceptually simple and familiar mechanism of electron impact ionization of atoms, molecules, and ions. Not only has the multi-body nature of the collision given ground to theoretical effort only grudgingly, but also the variety and subtlety of processes contributing to ionization have helped insure that progress has come only with commensurate work: no pain - no gain. Modern experimental methods have made it possible to effectively measure and explore threshold laws, differential cross sections, partial cross sections, inner-shell ionization, and the ionization of unstable species such as radicals and ions. In most instances the availability of experimental data has provided impetus and guidance for further theoretical progress.
Download or read book Updated Excitation and Ionization Cross Sections for Electron Impact on Atomic Oxygen written by Russ R. Laher and published by . This book was released on 1988 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electron Impact Total Ionization Cross Sections written by and published by DIANE Publishing. This book was released on with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monte Carlo Transport of Electrons and Photons written by T.M. Jenkins and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: For ten days at the end of September, 1987, a group of about 75 scientists from 21 different countries gathered in a restored monastery on a 750 meter high piece of rock jutting out of the Mediterranean Sea to discuss the simulation of the transport of electrons and photons using Monte Carlo techniques. When we first had the idea for this meeting, Ralph Nelson, who had organized a previous course at the "Ettore Majorana" Centre for Scientific Culture, suggested that Erice would be the ideal place for such a meeting. Nahum, Nelson and Rogers became Co-Directors of the Course, with the help of Alessandro Rindi, the Director of the School of Radiation Damage and Protection, and Professor Antonino Zichichi, Director of the "Ettore Majorana" Centre. The course was an outstanding success, both scientifically and socially, and those at the meeting will carry the marks of having attended, both intellectually and on a personal level where many friendships were made. The scientific content of the course was at a very high caliber, both because of the hard work done by all the lecturers in preparing their lectures (e. g. , complete copies of each lecture were available at the beginning of the course) and because of the high quality of the "students", many of whom were accomplished experts in the field. The outstanding facilities of the Centre contributed greatly to the success. This volume contains the formal record of the course lectures.
Download or read book Electron impact Ionization Cross Sections of Ti Kr Sn Ta U Atoms and Their Ions in the Electron Energy Range from the Threshold Up to 200 KeV written by and published by . This book was released on 2002 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electron impact Ionization Cross Section Database written by Yong-Ki Kim and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a database primarily of total ionization cross sections of molecules by electron impact. The database also includes cross sections for a small number of atoms and energy distributions of ejected electrons for H, He, and H2. The cross sections were calculated using the Binary-Encounter-Bethe (BEB) model, which combines the Mott cross section with the high-incident energy behavior of the Bethe cross section. Selected experimental data are included.
Download or read book Electron Impact Cross Sections written by Foram M. Joshi and published by LAP Lambert Academic Publishing. This book was released on 2013-01 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron scattering, a subset of atomic molecular physics, plays a key role in many areas of science and technology. It can be used as probes in a wide range of natural processes. This book reports electron impact collision calculations on atomic and molecular targets relevant to plasma and astrophysical systems. It covers theoretical research in these areas on the electron collision and ionization of various atomic and molecular targets in the lower and intermediate energies. We report a simple and effective method developed by our group, which provides an estimate for family of cross sections: total elastic cross sections, total inelastic cross sections, total cross section, rotational cross sections and grand total cross sections for electron scattering from atoms and molecules. The results of such calculations are compared with experiments and with other calculations. Apart from these calculations, the present book also investigates theoretical work on a molecule BF at low energies using R-matrix formulation in the Quantemol-N software. These calculations can be useful to both the experimentalists as well as theoretians in their research work.
Download or read book Cosmic Rays and Particle Physics written by Thomas K. Gaisser and published by Cambridge University Press. This book was released on 1990 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over recent years there has been marked growth in interest in the study of techniques of cosmic ray physics by astrophysicists and particle physicists. Cosmic radiation is important for the astrophysicist because in the farther reaches of the universe. For particle physicists, it provides the opportunity to study neutrinos and very high energy particles of galactic origin. More importantly, cosmic rays constitue the background, and in some cases possibly the signal, for the more exotic unconfirmed hypothesized particles such as monopoles and sparticles. Concentrating on the highest energy cosmic rays, this book describes where they originate, acquire energy, and interact, in accreting neutron stars, supernova remnants, in large-scale shock waves. It also describes their interactions in the atmosphere and in the earth, how they are studied in surface and very large underground detectors, and what they tell us.
Download or read book Electron Impact Ionization Cross Sections for Carbon Vapor written by Kang Lung Wang and published by . This book was released on 1970 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimation of Electron Impact Excitation Cross Sections of Molecular Hydrogen written by George M. Prok and published by . This book was released on 1967 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Theory of Atomic Structure and Spectra written by Robert D. Cowan and published by Univ of California Press. This book was released on 2023-11-15 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: Both the interpretation of atomic spectra and the application of atomic spectroscopy to current problems in astrophysics, laser physics, and thermonuclear plasmas require a thorough knowledge of the Slater-Condon theory of atomic structure and spectra. This book gathers together aspects of the theory that are widely scattered in the literature and augments them to produce a coherent set of closed-form equations suitable both for computer calculations on cases of arbitrary complexity and for hand calculations for very simple cases.
Download or read book Updated Excitation and Ionization Cross Sections for Electron Impact on Atomic Oxygen written by Russ R. Laher and published by . This book was released on 1990 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elementary Processes in Hydrogen Helium Plasmas written by Ratko K. Janev and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomic and molecular processes play an important role in laboratory and astrophysical plasmas for a wide range of conditions, and determine, in part, their electrical, transport, thermal, and radiation properties. The study of these and other plasma properties requires a knowledge of the cross sections, reaction rate coefficients, and inelastic energy transfers for a variety of collisional reactions. In this review, we provide quantitative information about the most important collision processes occurring in hy drogen, helium, and hydrogen-helium plasmas in the temperature range from 0. 1 eV to 20 keY. The material presented here is based on published atomic and molecular collision data, theoretical calculations, and appro priate extrapolation and interpolation procedures. This review gives the properties of each reaction, graphs of the cross sections and reaction rate coeffiCients, and the coefficients of analytical fits for these quantities. We present this information in a form that will enable researchers who are not experts in atomic physics to use the data easily. The authors thank their colleagues at the Princeton Plasma Physics Laboratory and in the atomic physics community who have made many useful suggestions for the selection and presentation o. f t. he material. We gratefully acknowledge the excellent technical assistance of Elizabeth Carey for the typing, and Bernie Giehl for the drafting. This work was supported in part by the U. S. Department of Energy Contract No. DE-AC02-76-CHO-3073. Princeton, USA R. K. Janev W. D. Langer September, 1987 K. Evans, Jr. , D. E.
Download or read book Electron Impact Ionization Cross Sections written by Charles Kimball Crawford and published by . This book was released on 1967 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: A literature survey reveals that no measurements of carbon electron ionization cross sections appear to have been made. The problem is complicated because of the large variety of possible reactions. The method describing how different processes can be separated is contained herein. The results show that some of the simpler cross sections can be deduced. Electron beam profiles, secondary electrons, and ion energy effect on the mass spectrometer were investigated in order to reduce uncertainties. A new cross section measuring technique, the Exponential Depletion Method, was developed, and is described herein. Apparatus for the existing MCB method was modified to accommodate the Exponential Depletion theory.
Download or read book Fundamental Electron Interactions with Plasma Processing Gases written by Loucas G. Christophorou and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 791 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume deals with the basic knowledge and understanding of fundamental interactions of low energy electrons with molecules. It pro vides an up-to-date and comprehensive account of the fundamental in teractions of low-energy electrons with molecules of current interest in modern technology, especially the semiconductor industry. The primary electron-molecule interaction processes of elastic and in elastic electron scattering, electron-impact ionization, electron-impact dissociation, and electron attachment are discussed, and state-of-the art authoritative data on the cross sections of these processes as well as on rate and transport coefficients are provided. This fundamental knowledge has been obtained by us over the last eight years through a critical review and comprehensive assessment of "all" available data on low-energy electron collisions with plasma processing gases which we conducted at the National Institute of Standards and Technology (NIST). Data from this work were originally published in the Journal of Physical and Chemical Reference Data, and have been updated and expanded here. The fundamental electron-molecule interaction processes are discussed in Chapter 1. The cross sections and rate coefficients most often used to describe these interactions are defined in Chapter 2, where some recent advances in the methods employed for their measurement or calculation are outlined. The methodology we adopted for the critical evaluation, synthesis, and assessment of the existing data is described in Chapter 3. The critically assessed data and recommended or suggested cross sections and rate and transport coefficients for ten plasma etching gases are presented and discussed in Chapters 4, 5, and 6.
Download or read book Ionization Cross Sections for Electron Impact in the Energy Range of 0 1 to 20 Kev written by and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
