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Full Description
Our understanding of elementary processes in plasmas has been increasing dramatically over the last few years. The development of various swarm techniques, such as the temperature variable selected ion flow tube or the selected ion flow drift tube, has provided the prerequisite for detailed investigations into ion molecule reactions both in binary and three body collisions, and the mechanisms of many reactions are now understood quite satisfactorily. This information could not have been obtained without a detailed knowledge of the transport phenomena involved. Some of these, such as the internal-energy distribution of drifting ions, have only very recently been tackled both theoretically and experimentally; a consistent model is now being developed. As the interactions between the various branches of swarm research have become more and more intense, the most obvious thing to do was putting together a review on the present state of this subject, which is the aim of this book.
Contents
1. Introduction.- Historical Development and Present State of Swarm Research.- 2. Ion-Transport.- Velocity Distribution Functions of Atomic Ions in Drift Tubes.- Internal-Energy Distribution of Molecular Ions in Drift Tubes.- Determination of Ion-Atom Potentials from Mobility Experiments.- Transverse Ion Diffusion in Gases.- Runaway Mobilities of Ions in Helium.- 3. Ion-Reactions.- Theory of Ion-Molecule Collisions at (1 eV-5 keV)/AMU.- Vibrational Excitation and De-Excitation and Charge-Transfer of Molecular Ions in Drift Tubes.- Kinetic and Internal Energy Effects on lon-Neutral- Reactions.- Cluster Ion Association Reactions: Thermochemistry and Relationship to Kinetics.- Temperature Dependences of Positive-Ion Molecule Reactions.- Reactions of Negative Ions.- 4. Electron Interactions.- Electrons in Dense Gases.- Electrons in Inert Gases.- Studies of Plasma Reaction Processes Using a Flowing-Afterglow/Langmuir Probe Apparatus.
