Gaseous Ion Mobility Diffusion and Reaction Preface 1 Introduction 2 Experiments and Elementary Theory 3 Momentum Transfer Theory 4 The Boltzmann Equation 5 Moment Methods for Solving the Boltzmann Equation 6 Gram Charlier Approach to Ion Molecule Reactions 7 Connections with Atomic Ion Atom Interaction Potentials 8 Molecular Ion and Neutrals 9 Summary and Prognosis Appendix: Mathematics Index This book is about the drift diffusion and reaction of ions moving through gases under the influence of an external electric field the gas temperature and the number density. While this field was established late in the 19th century experimental and theoretical studies of ion and electron swarms continue to be important in such varied fields as atomic and molecular physics aeronomy and atmospheric chemistry gaseous electronics plasma processing and laser physics. This book follows in the rigorous tradition of well known older books on the subject while at the same time providing a much needed overview of modern developments with a focus on theory. Graduate students and researchers new to this field will find this book an indispensable guide particularly those involved with ion mobility spectrometry and the use of ion transport coefficients to test and improve ab initio ion neutral interaction potentials. Established researchers and academics will find in this book a modern companion to the classic references