A comprehensive overview of the generation and application of mono-energetic positron beams. It has been written by experts at a level that should be accessible to graduate students working, or planning to work, with positron beams, and to scientists in other areas who want to know something about the field. The book begins with a brief historical introduction and an overview of how positron beams are generated and transported. A description of the fate of slow positrons in gaseous and condensed matter, with reference to many of the fundamental measurements made possible by the advent of...