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Author: Publisher: Springer ISBN: 3540474471 Category : Science Languages : en Pages : 227
Book Description
Electron emission is a fundamental phenomenon which accompanies most interactions of energetic particles with solid surfaces. Not only is it a special effect which for almost ninety years has attracted the interest of physicists, but it is also of acute importance in such fields as radiation effects and transport phenomena in solids (e.g., radiation biology), plasma-surface interactions, microtechnology, surface analysis, ion microscopies, particle detector development and others. While Volume I emphasizes the theoretical description of the mechanisms of electron emission, this volume reviews modern experimental trends and aspects of the phenomenon, e.g., kinetic electron emission from massive solids and from thin foils under bombardment with positive, negative, and neutral particles, and the measurement of electron statistics in connection with potential and kinetic emission due to slow singly and multiply charged projectiles.
Author: Publisher: Springer ISBN: 3540474471 Category : Science Languages : en Pages : 227
Book Description
Electron emission is a fundamental phenomenon which accompanies most interactions of energetic particles with solid surfaces. Not only is it a special effect which for almost ninety years has attracted the interest of physicists, but it is also of acute importance in such fields as radiation effects and transport phenomena in solids (e.g., radiation biology), plasma-surface interactions, microtechnology, surface analysis, ion microscopies, particle detector development and others. While Volume I emphasizes the theoretical description of the mechanisms of electron emission, this volume reviews modern experimental trends and aspects of the phenomenon, e.g., kinetic electron emission from massive solids and from thin foils under bombardment with positive, negative, and neutral particles, and the measurement of electron statistics in connection with potential and kinetic emission due to slow singly and multiply charged projectiles.
Author: Hannspeter Winter Publisher: Springer Science & Business Media ISBN: 3540707883 Category : Science Languages : en Pages : 254
Book Description
The emission of electrons from solid surfaces bombarded by slow neutral and ionized heavy particles (atoms, molecules) is reviewed both theoretically and in the light of recent experimental studies by leading groups in the field. The book integrates physics of ion beams, surfaces and chemical physics, and serves both as a reference work for researchers and a textbook for graduate students.
Author: Publisher: Springer ISBN: 3540487239 Category : Science Languages : en Pages : 138
Book Description
This monograph discusses collision-induced electron emission from nearly free-electron metals by ion or electron impact. This subject is, as is well known, of acute importance in understanding plasma-wall interactions in thermonuclear reactors. It is also the basis for one of the most exciting technological developments of the last few years - scanning electron miscroscopy. Several electron excitation mechanisms of electrons in the target are considered: excitation of single conduction and core electrons, excitation by plasmon decay and by Auger processes. Transport of inner excited electrons is simulated by the Boltzmann equation incorporating both elastic and inelastic collisions. The numerical calculation of scattering rates uses a dynamically screened Coulomb interaction. These results for the energy distributions of emerging electrons as well as the electron yield are compared with recent experimental measurements on electron emission from polycrystalline aluminum.
Author: Hannspeter Winter Publisher: Springer ISBN: 9783540835295 Category : Science Languages : en Pages : 246
Book Description
The emission of electrons from solid surfaces bombarded by slow neutral and ionized heavy particles (atoms, molecules) is reviewed both theoretically and in the light of recent experimental studies by leading groups in the field. The book integrates physics of ion beams, surfaces and chemical physics, and serves both as a reference work for researchers and a textbook for graduate students.
Author: Publisher: Springer ISBN: 9783540534310 Category : Science Languages : en Pages : 137
Book Description
This monograph discusses collision-induced electron emission from nearly free-electron metals by ion or electron impact. This subject is, as is well known, of acute importance in understanding plasma-wall interactions in thermonuclear reactors. It is also the basis for one of the most exciting technological developments of the last few years - scanning electron miscroscopy. Several electron excitation mechanisms of electrons in the target are considered: excitation of single conduction and core electrons, excitation by plasmon decay and by Auger processes. Transport of inner excited electrons is simulated by the Boltzmann equation incorporating both elastic and inelastic collisions. The numerical calculation of scattering rates uses a dynamically screened Coulomb interaction. These results for the energy distributions of emerging electrons as well as the electron yield are compared with recent experimental measurements on electron emission from polycrystalline aluminum.
Author: Hannspeter Winter Publisher: Springer ISBN: 3540707891 Category : Science Languages : en Pages : 253
Book Description
The emission of electrons from solid surfaces bombarded by slow neutral and ionized heavy particles (atoms, molecules) is reviewed both theoretically and in the light of recent experimental studies by leading groups in the field. The book integrates physics of ion beams, surfaces and chemical physics, and serves both as a reference work for researchers and a textbook for graduate students.
Author: Hiroshi Kudo Publisher: Springer ISBN: 3540455272 Category : Science Languages : en Pages : 165
Book Description
This monograph deals with ion induced electron emission from crystalline solids bombarded by fast ions. During the past decade, electron spectroscopy combined with the ion channeling technique has revealed various "messages" about ion solid and electron solid interactions carried by the emitted elec trons. While the ion induced electrons produced by binary encounter pro cesses are of primary interest in this book, closely related topics such as the emission of ion induced Auger electrons from crystal targets are also reviewed, with emphasis on their interdisciplinary aspects, for example, their relation to photoelectron diffraction. In addition to these topics, the book describes the underlying physics and experimental techniques so that it should provide useful information for students and scientists working in ion beam based re search and development in various areas of atomic and solid state physics, materials science, surface science, etc. I am much indebted to the gererations of students who have passed through my laboratory, since they have stimulated me with elementary but essential questions in various phases of the studies. I am also grateful to T. Azuma, Y. Kido, K. Kimura, H. Naramoto, and S. Seki for critical reading of the manuscript. Tsukuba, August 2001 Hiroshi Kudo Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1o Terminology and Table of Symbols . . . . . . . . . . . . . . . . . . . . . . . 5 2. 2. 1 Notes on Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. 2 Frequently Used Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3. Binary Encounter Electron Emission . . . . . . . . . . . . . . . . . . . . . . 7 3. 1 Ion Electron Elastic Collisions . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3. 2 Recoil Cross Section of Orbital Electrons . . . . . . . . . . . . . . . . . .
Author: John N. Bradford Publisher: ISBN: Category : Electromagnetic pulse Languages : en Pages : 34
Book Description
Electron fluxes generated by photons or charged particles interacting with solid materials can emerge from the boundaries of those materials. The electron current densities arising from these spectra constitute source functions for vulnerability studies on systems exposed to internal electromagnetic pulse (IEMP, SGEMP). Absolute yield measurements have been made from tantalum, molybdenum, copper, and aluminum. The energy and angular distribution have been determined and are used as comparison bases for computation. Examples from several sources are described.
Author: Eric Maertz Publisher: ISBN: Category : Languages : en Pages : 167
Book Description
Fast charged particles interact with matter through various ionization and excitation pathways that aren't fully understood. Predicting the effects of these interactions is vital in many fields such as radiation therapy, space exploration, and materials processing. Monte Carlo models of the spatial distribution of dose deposited in tissue require cross section data of the incident charged particles and the secondary electrons they produce in biological media. Because the interaction cross sections cannot be directly measured in condensed-phase materials, precise measurements of electron emission from solids can test and improve track-structure simulations of charged-particle transport in solids. In this thesis, doubly differential electron emission yields [gamma]([epsilon], [theta]), as a function of electron energy [epsilon] and emission angle [theta], were measured for proton and carbon-ion beams in the energy range of 0.2-4.0 MeV/u with gold and amorphous solid water targets. Energy analysis was conducted using the electron time of flight, thus focusing on low-energy electrons that dominate the emission spectrum. The experimental data are presented for various projectile and target combinations, and are compared to results from the track-structure simulations.
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Author: Hannspeter Winter
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Author: Hannspeter Winter
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Author: Hannspeter Winter
Author: Hiroshi Kudo
Author: John N. Bradford
Author: Eric Maertz