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Monday, July 27, 2020 | History

1 edition of Resonance effects in electron-ion collisions found in the catalog.

Resonance effects in electron-ion collisions

Resonance effects in electron-ion collisions

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  • 34 Currently reading

Published by Institute of Plasma Physics, Nagoya University in Nagoya, Japan .
Written in English

    Subjects:
  • Electron-ion collisions.,
  • Nuclear magnetic resonance.

  • Edition Notes

    Statementedited by Hiroyuki Tawara and Gordon H. Dunn.
    ContributionsTawara, H. 1936-, Dunn, G. H. 1932-
    Classifications
    LC ClassificationsQC794.6.C6 R465 1986
    The Physical Object
    Pagination217 p. :
    Number of Pages217
    ID Numbers
    Open LibraryOL2072153M
    LC Control Number88101616

      Collisions of electrons with atoms and ions play a crucial role in the modeling and diagnostics of fusion plasmas. In the edge and divertor regions of magnetically confined plasmas, data for the collisions of electrons with neutral atoms and low charge-state ions are of particular importance, while in the inner region, data on highly ionized species are : Donald C Griffin. Interference Effects in K-Shell Vacancy Sharing.- Coherent Excitation of Ionic States by Correlated Collisions in a Crystal Lattice.- Alignment, Orientation, and the Beam-Foil Interaction.- Polarized-Photon, Scattered-Ion Coincidence Study of Mg+ Collisions with He, Ne, and Ar.- Coherence Effects in Heavy-Ion-Atom Collisions.

    New results on coherence effects and orienta­ tion and alignment in collisional processes of ions with surfaces and crystal lattices show links to relevant interference phenomena in atomic collisions. In small-angle elastic electron-atom scattering the effect of angular coherence can be studied in a . Resonance (w) Intercombination (x,y) The ratio F/I is normally called the R ratio, and it is a density diagnostic. If n e is large enough, collisions move electrons from the forbidden to the intercombination and resonance Size: 1MB.

    Two-center effects in electron emission from the impact of fast, multiply-charged projectiles on helium.- Two-electron transitions in high energy ion-helium collisions.- Electron capture in slow collisions of multicharged ions with hydrogen atoms using merged beams.- Partial charge exchange and excitation cross sections for C3+ + H collisions Theoretical Study of Ion-Pair Formation in Collisions of Electrons with HD + Difficulties Inherent in the Theory of Low-Temperature Dissociative Recombination and Possible Ways of Their Obviation. Isotope Effects in Dissociative Recombination. Resonance Curves for .


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Resonance effects in electron-ion collisions Download PDF EPUB FB2

The laser transitions from the Cd + (4 d 9 5 s 2) 2 D 5/2,3/2 levels have been investigated in the crossed-beams experiment (Gomonai and Imre ()) as shown in Fig. excitation functions have revealed distinct resonance features not observed in earlier experiments (Hane et al., a, Hane et al., b).In these works, the laser lines λ and λ nm were studied, while the Author: Arpad Imre, Anna Gomonai.

Resonance phenomena in electron-ion and photon-ion collisions Article (PDF Available) in Journal of Physics Conference Series (1) November with 78 Reads How we measure 'reads'. @article{osti_, title = {Resonant recombination and autoionization in electron-ion collisions}, author = {Mueller, A}, abstractNote = {The occurence of resonances in elastic and inelastic electron-ion collisions is discussed.

Resonant processes involve excitation of the ion with simultaneous capture of Resonance effects in electron-ion collisions book initially free electron. The decay mechanism subsequent to the formation of the. Using the crossed-beam method and a hypocycloidal electron spectrometer, the energy dependence of the ionization cross section for the cadmium atom has been studied in the near-threshold region and the elastic scattering of slow electrons at an angle close to ° by Cd+ ions was studied for the first time.

Within the region under study (0–7 eV above the first atomic ionization potential Cited by: 2. A review is given of the development of the projection-operator formalism of Feshbach towards a comprehensive theory of resonance and threshold effects in electron-molecule collisions.

The definition and explicit construction of the appropriate projectors is by: The quantum screening effects on the entanglement fidelity for the elastic collision are investigated in electron-ion quantum plasmas. The partial wave analysis and modified Debye-H¨uckel. Intermediate autoionizing states can be formed during electron-ion and photon-ion collisions.

Depending on the decay of these multiply excited states by electron and/or photon emission the associated indirect processes can contribute to net electron-ion recombination, elastic or ineleastic electron scattering, to excitation, to single or to multiple ionization of the initial ion.

42 Chapter 3 v = E B B2 vE, () which is the “E cross B” drift this case, the drift is in the direction perpendicular to both E and B, and arises from the cycloidal electron motion in the magnetic field being accelerated in the direction of –E and decelerated in the direction of elongates the orbit on one-half cycle and shrinks theFile Size: 1MB.

The authors aim to hone the theory of electron-atom and electron-ion collisions by developing mathematical equations and comparing their results to the wealth of recent experimental data.

This first of three parts focuses on potential scattering, and will serve as an introduction to many of the concepts covered in Parts II and : Hardcover. We examine elastic and inelastic scattering of electrons by ions in intense laser light.

A method of numerical investigation of the scattering characteristics based on regularizing the Coulomb singularity is proposed. We show that over a broad range of parameter values the transport scattering cross section is weakly dependent on the intensity of the high-frequency by: 8. Collisions in Plasmas Binary collisions between charged particles Reduced-mass for binary collisions: Two particles interacting with each other have forces F12 force on 1 from 2.

FZ1 force on 2 from 1. By Newton's 3rd law, F12 = FZ1. Equations of motion: mlrl = F12 ; m2r2 = FZ1 Combine to get rl - r2 = F12 () which may be writtenFile Size: 1MB. The quantum screening effects on the entanglement fidelity for the elastic collision are investigated in electron-ion quantum plasmas.

The partial wave analysis and modified Debye-Hückel interaction potential are employed to obtain the entanglement fidelity function in electron-ion quantum plasmas as a function of the collision energy, charge of the ion, and quantum wave : Dae-Han Ki, Young-Dae Jung.

@article{osti_, title = {Curvature and gradient drift effects on trapped-electron modes}, author = {Crystal, T L and Denavit, J}, abstractNote = {Computer simulations of local trapped-electron modes in toroidal plasmas, including curvature and gradient drift effects, are presented.

These simulations are based on the linearized electron drift-kinetic equation, Fourier transformed with. Coulomb “collisions” of a test particle with background charged particles leads to a random walk (Brownian motion) process.

Thus, the effects of the many cumulative small-angle, elastic Coulomb collisions are diffusion of the test parti-cle’s direction of motion (at constant energy in the center-of-momentum frame) DRAFT File Size: 1MB. The Relativistic Heavy Ion Collider (RHIC / ˈ r ɪ k /) is the first and one of only two operating heavy-ion colliders, and the only spin-polarized proton collider ever built.

Located at Brookhaven National Laboratory (BNL) in Upton, New York, and used by an international team of researchers, it is the only operating particle collider in the US. By using RHIC to collide ions traveling at Intersecting Storage Rings: CERN, – 4 1 Plasma, an Overview magnetic fields.

To this we may also add the ranges of conditions encountered, such as current and gas pressure. Plasma Space Plasmas Space plasmas [3] vary from very hot (T > K), dense plasmas at the centreof stars, corona flares and sunspots, to cold, less dense plasmas such as the auroraFile Size: KB.

A particle accelerator is a machine that uses electromagnetic fields to propel charged particles to very high speeds and energies, and to contain them in well-defined beams.

Large accelerators are used for basic research in particle largest accelerator currently operating is the Large Hadron Collider (LHC) near Geneva, Switzerland, operated by the CERN.

A resonance in the spectrum of transverse waves near ω = 2ω p, the first harmonic of the electron plasma frequency, is noted. The high‐frequency form of the transverse spectrum is approximately evaluated and found to be relativistically small by comparison with the dominant electron‐ion Cited by: 2.

Figure 1 shows a schematic of a typical setup of a capacitively coupled plasma, 1,2 1. Lieberman and A. Lichtenberg, Principles of Plasma Discharges and Materials Processing (John Wiley & Sons, ). Chabert and N. Braithwaite, Physics of Radio-frequency Plasmas (Cambridge University Press, ). which consists of two plane and parallel electrodes with circular surfaces that.

Optical resonance and two-level atoms Leslie Allen, Joseph H. Eberly. If you're looking for an introduction to optics or atomic physics, this book may be a little terse and advanced. But if you have some exposure to optics and lasers, and a good foundation in electromagnetism and basic quantum mechanics, this is a great book to have.

This book contains the invited lectures and contributed papers presented at the V International Conference on the Physics of Highly Charged Ions, which was held at the lustus-Liebig-Universi­ tat Giessen, September This conference was the ftfth in a series -after Stockholm ().Electron-Ion Momentum Transfer at Ultrarelativistic Energy; Pair Production from Heavy-Ion Collisions in the Extreme Relativistic Limit; Angular Asymmetry of Low Energy Electron Emission in Ion-Atom Collisions; Electron Capture with Multiple Ionization in Collisions with Heavy Metal Atoms; K-Shell Ionization and Biological Effects.Electron Cyclotron Resonance Ion Sources and ECR Plasmas Geller, R Acknowledged as the "founding father" of and world renowned expert on electron cyclotron resonance sources Richard Geller has produced a unique book devoted to the physics and technicalities of .