The purpose of the proceedings of the Accelerator Schools is to introduce CERN- and US-students to advanced ideas and concepts from the frontiers of the rapidly developing field of accelerator physics and technology. Considerable emphasis is put on understanding the rich variety of mechanisms at work in a charged particle beam determining its behaviour. The subjects range from the very topical problem of dynamic aperture, which is of interest for predicting the stability of particles in the new machines such as SSC and LEP, through some better known subjects such as coherent and incoherent radiation, which is of increasing importance as a tool for industry and basic research in other disciplines, to the very latest and most exotic discovery of crystal beams, which is as yet in the totally academic phase of its development. This central theme of the internal physics of beams has been supplemented by lectures on the coming generation of linear colliders, the status of the superconducting project CEBAF, and on other topics.

This volume presents the latest ideas and developments in the world of beam diagnostics in particle accelerators and storage rings. It brings together papers by internationally recognized experts and by the younger scientists in the field. The lectures treat three main themes: - Phenomena used in beam observation - Single particle parameters - Collective parameters Each theme is introduced by one or more general lectures followed by detailed lectures on specific topics such as Schottky noise, closed orbits and impedance measurements. The overall aim was to show how to observe the diverse behavior of a beam, how to interpret and classify the observations and then how to control or correct the relevant parameters. The resulting volume contains much of the information needed to operate or commission a machine. The lecture program was supplemented by three seminars that looked at monitoring in e+e- colliders and at the special problems of nonplanar machines and experimental particle tracking. This unique and comprehensive collection of papers is the most up-to-date presently available.