[PDF] Inelastic Electron Scattering At Low Temperatures eBook

Author : P. Schattschneider
Publisher : Springer Science & Business Media
Page : 205 pages
File Size : 10,31 MB
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 3709188660

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Electron energy loss spectroscopy (ELS) is a vast subject with a long and honorable history. The problem of stopping power for high energy particles interested the earliest pioneers of quantum mechanics such as Bohr and Bethe, who laid the theoretical foun dations of the subject. The experimental origins might perhaps be traced to the original Franck-Hertz experiment. The modern field includes topics as diverse as low energy reflection electron energy loss studies of surface vibrational modes, the spectroscopy of gases and the modern theory of plasmon excitation in crystals. For the study of ELS in electron microscopy, several historically distinct areas of physics are relevant, including the theory of the Debye Waller factor for virtual inelastic scattering, the use of complex optical potentials, lattice dynamics for crystalline specimens and the theory of atomic ionisation for isolated atoms. However the field of electron energy loss spectroscopy contains few useful texts which can be recommended for students. With the recent appearance of Raether's and Egerton's hooks (see text for references), we have for the first time both a comprehensive review text-due to Raether-and a lucid introductory text which emphasizes experimental aspects-due to Egerton. Raether's text tends to emphasize the recent work on surface plasmons, while the strength of Egerton's book is its treatment of inner shell excitations for microanalysis, based on the use of atomic wavefunctions for crystal electrons.

Author :
Publisher :
Page : 35 pages
File Size : 38,12 MB
Release : 1981
Category :
ISBN :

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A completely quantum mechanical formalism has been developed to describe the high density plasma effects on fundamental atomic parameters. Both the bound and free electrons are treated by a method which in principle is similar to Hartree's self-consistent field method. The free plasma electrons' wave-function is obtained from the Schrodinger equation with the effective potential representing the spherically averaged Coulomb interaction with bound and free electrons. Results are given for level shifts, coefficients of transition probabilities, and electron collision cross sections of Ne(9+) for temperature and 200 and 500 e V for an electron density range of 1 - 6 x 10 to the 24th power/cc, and of Ar(17+) for temperatures of 1000 and 2000 eV and electron densities from 2 x 10 to the 25th power to 8 x 10 to the 25th power/cc. In the low-density region, level shifts are obtained for H and He+. (Author).

Author : Maurizio De Crescenzi
Publisher : World Scientific
Page : 427 pages
File Size : 19,44 MB
Release : 1996-11-26
Category : Science
ISBN : 9814500305

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The main purpose of this book is to provide an overview of all phenomena which can be categorized under the general label of “electron scattering”, and to give a comprehensive description of all spectroscopical techniques related to electron scattering phenomena. Various classes of events are examined (electron in-electron out, photon in-electron out, electron in-two electron out, electron diffraction), together with the corresponding experimental techniques. A description of the underlying physics of various electron scattering phenomena is provided. For each spectroscopy, the general principles, the main fields of application, and some selected representative cases are discussed. The use of relatively low-cost electron sources is emphasized with respect to photon sources. The book is directed to PhD students and researchers not necessarily yet expert in the field.

Author : Petr Carsky
Publisher : CRC Press
Page : 311 pages
File Size : 27,29 MB
Release : 2016-04-19
Category : Science
ISBN : 1439839115

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Since the turn of the 21st century, the field of electron molecule collisions has undergone a renaissance. The importance of such collisions in applications from radiation chemistry to astrochemistry has flowered, and their role in industrial processes such as plasma technology and lighting are vital to the advancement of next generation devices. F