Collision electronic

McDaniei E W 1989 Atomic Collisions Electron and Photon Projectiles (New York Wiiey)... 

This chapter deals with qnantal and semiclassical theory of heavy-particle and electron-atom collisions. Basic and nsefnl fonnnlae for cross sections, rates and associated quantities are presented. A consistent description of the mathematics and vocabnlary of scattering is provided. Topics covered inclnde collisions, rate coefficients, qnantal transition rates and cross sections. Bom cross sections, qnantal potential scattering, collisions between identical particles, qnantal inelastic heavy-particle collisions, electron-atom inelastic collisions, semiclassical inelastic scattering and long-range interactions. 

A partial wave decomposition provides the frill close-coupling quantal method for treating A-B collisions, electron-atom, electron-ion or atom-molecule collisions. The method [15] is siumnarized here for the inelastic processes... 

Thus, the average stopping power is proportional to the initial energy except for corrections due to atomic collisions (electronic excitation) near 108 eV. For a medium of nuclear charge Ze and mass number A, the radiation length is given by (Bethe and Ashkin, 1953)... 

Reactive collisions, electron nuclear dynamics (END), molecular systems, 338—342 final-state analysis, 343 -349... 

IV. EXCITED PRODUCTS FROM ION-NEUTRAL COLLISIONS (ELECTRONIC, VIBRATIONAL AND ROTATIONAL EXCITATION)... 

McDaniel, E.W. (1989). Atomic Collisions - Electron Photon Projectiles (Wiley Interscience). 

Jouffrey, B. Sur quelques aspects des collisions electron-atome cas elastique et inelastique. In Cours de I Ecole de Microscopic Electronique en Science des Mate riaux, Jouffrey, B., Bourret, A., Colliex, C., Eds. CNRS Paris, 1983 85-184. 

In addition to the secondary electrons produced by collisions, electrons are also produced by two other processes ... 

Benchmark Measurements of Cross Sections for Electron Collisions Electron Swarm Methods, R. W. Crompton Some Benchmark Measurements of Cross Sections for Collisions of Simple Heavy Particles, H. B. Gilbody The Role of Theory in the Evaluation and Interpretation of Cross-Section Data,... 

This first decade of crystallographic study of enzymes helped to create two new fields bio-inorganic chemistry and mechanistic bio-organic chemistry. Harry B. Gray (1935- ), at Caltech, began to make fundamental contributions to the chemistry and chemical physics of metal-loproteins. Unlike reactions between transition metal ions and their complexes, which involve intimate contact and electron-transfer upon collision, electron transfer between metals on different proteins is not so intimate and may require several collisions and may proceed through... 

Concentration of the ith component Velocity of the ith particle Velocity of the center of mass Constant volume heat capacity per molecule Hard-sphere diameter (for an A-B collision) Electronic charge, energy per mole Error function... 

Numerical data are given for mass collision electron stopping powers in 41 elemental solids for energies between 100 eV and 30 keV. These stopping powers were determined with an algorithm that utilizes experimental optical data for each solid. 

Values of Mass Collision Electron Stopping Powers in MeV cm /g for the Indicated Elemental Solids and Relativistic Electron Kinetic... 

The fragmentation reactions are discussed in somewhat more detail in section 5.2. Electron ionization is performed in a high-vacuum ion source (typical pressure <10 Pa), excluding intermolecular collisions. Electron ionization spectra are highly reproducible. Extensive computer-searchable libraries of El mass spectra are available to assist in the identification of unknowns (see section. 5.1). 

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