§07§The book presents the latest experimental and theoretical efforts by the world's authorities on the phenomena of electronically-induced surface processes. §16§This volume in the Springer Series on Surface Sciences presents a recent account of advances in the ever-broadening field of electron-and photon-stimulated sur face processes. As in previous volumes, these advances are presented as the proceedings of the International Workshop on Desorption Induced by Electronic Transitions; the fifth workshop (DIET V) was held in Taos, New Mexico, April 1-4, 1992. It will be abundantly clear to the reader that "DIET" is not restricted to desorption, but has for several years included photochemistry, non-thermal surface modification, exciton self-trapping, and many other phenomena that are induced by electron or photon bombardment. However, most stimulated surface processes do share a common physics: initial electronic excitation, localization of the excitation, and conversion of electronic energy into nuclear kinetic energy. It is the rich variation of this theme which makes the field so interesting and fruitful. We have divided the book into ele §16§ven parts in order to emphasize the wide range of materials that are examined and to highlight recent experimental and theoretical advances. Naturally, there is considerable overlap between sections, and many papers would be appropriate in more than one part. Part I focuses on perhaps the most active area in the field today: electron attachment. Here the detection and characterization of negative ions formed by attachment of elec trons supplied externally from the vacuum are discussed. In addition, the first observations of negative ions formed by substrate photoelectrons are presented. §04§croscopy of Electron-Stimulated Processes at Oxide Surfaces.- VIII Semiconductors.- State-Resolved Studies of the Laser-Induced Desorption of NO from Si(111): The Importance of Localized Excitations.- Laser-Induced Electronic Processes on Semiconductor Surfaces.- Mechanisms of Metastable Atom Quenching on GaAs(100).- The Synchrotron Radiation Induced Chemistry of the Adamantane/Si(111)-7×7 Surface.- Photolysis Enhancement by Excitation of Si(2p) Core Level Electrons in SiF4/Ge(100).- Photon Stimulated Desorption of Fluorine from Semiconductor Surfaces.- ESDIAD Studies of Chlorine Adsorption at Silicon(100).- Probing GaSb(110) Surface and Interfaces by Photon Stimulated Desorption (PSD).- Photon Stimulated H+ Ion Desorption Studies of Silicon Surfaces Covered by Alkali Metals.- IX Oxides.- Low Energy Excitations and Desorption Dynamics from Oxide Surfaces.- Electron Stimulated Desorption (ESD) of Ammonia on TiO2(110): The Influence of Substrate Defect Structure.- Electron Stimulate §04§d Desorption of O+ from TiO2(110)-SO2.- X Alkali Halides.- Surface Deformation and Change in Reflectivity During Electron Irradiation: Results for the CaF2(111) Surface.- The Role of Hot Hole Migration in Electronic Sputtering of Alkali Halides.- New Mechanism for the Desorption of Excited Atoms by Photon Bombardment of Alkali Halide Crystals.- Simultaneous Measurements of Optical Absorption and Electron Stimulated Li Desorption on LiF Crystals.- Rotational Distributions Following DIET: CN from Alkali-Rich Surfaces.- Auger Studies of Damage and Charging in NaCl.- XI Cryogenic Overlayers.- DIET from Cryogenic Layers: Subject and Tool of Investigation.- Low-Energy ESD of Metastable Atoms from Ar, Kr, Xe(111) Condensed Films.- Photo-Stimulated Desorption of Ne Metastables from Thin Ne Layers on Solid Ar, Kr, and Xe.- Dynamics of Multi-Electronic Photon Excitation in Multilayers of Argon Studied by Kinetic Energy Analysis of Photodesorbed Ions.- Photon Stimulated Desorption from Cryog