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 . . . . . . . . . . . . . . . . . .

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.

This book collects the papers presented at the NATO Advanced Research Workshop on "Ionization of Solids by Heavy Particles", held in Giardini-Naxos (Taormina), Italy, on June 1 -5, 1992. The meeting was the first to gather scientists to discuss the physics of electron emission and other ionization effects occurring during the interaction of heavy particles with condensed matter. The central problem in the field is how to use observations of electron emission and final radiation damage to understand what happens inside the solid, like excitation mechanisms, the propagation of the electronic excitation along different pathways, and surface effects. The ARW began with a brief survey of the field, stressing the unknowns. It was pointed out that ionization theories can only address the very particular case of weak perturbations. For this problem, this meant high speed, low-charged projectiles (a perturbation treatment of interactions with slow, highly charged ions was later presented). Only semi-empirical models exist for velocities lower than the Fermi velocity in the solid, which can be used to predict kinetic electron emission yields. These models, however, do not address the basic questions about the mechanisms for electron excitation, transport and escape through the surface layer.

This book features reviews by leading experts on the methods and applications of modern forms of microscopy. The recent awards of Nobel Prizes awarded for super-resolution optical microscopy and cryo-electron microscopy have demonstrated the rich scientific opportunities for research in novel microscopies. Earlier Nobel Prizes for electron microscopy (the instrument itself and applications to biology), scanning probe microscopy and holography are a reminder of the central role of microscopy in modern science, from the study of nanostructures in materials science, physics and chemistry to structural biology. Separate chapters are devoted to confocal, fluorescent and related novel optical microscopies, coherent diffractive imaging, scanning probe microscopy, transmission electron microscopy in all its modes from aberration corrected and analytical to in-situ and time-resolved, low energy electron microscopy, photoelectron microscopy, cryo-electron microscopy in biology, and also ion microscopy. In addition to serving as an essential reference for researchers and teachers in the fields such as materials science, condensed matter physics, solid-state chemistry, structural biology and the molecular sciences generally, the Springer Handbook of Microscopy is a unified, coherent and pedagogically attractive text for advanced students who need an authoritative yet accessible guide to the science and practice of microscopy.

This volume reviews the theoretical and experimental work about continuous electron emission in energetic ion-atom collisions over the last 30 years. General properties of the two-center electron emission are analyzed, and particular attention is given to screening effects. The book also offers an overview of multiple ionization processes.

A comprehensive summary of experiments on Compton scattering from the proton and neutron performed at the electron accelerator MAMI. The experiments cover a photon energy range from 30 MeV to 500 MeV. The reader is introduced to the theoretical concepts of Compton scattering, followed by a description of the experiments on the proton, their analysis and results.