SPHEROMAKS
A Practical Application of Magnetohydrodynamic Dynamos and Plasma Self-Organization

by Paul M Bellan (California Institute of Technology)

Spheromaks are easily formed, self-organized magnetized plasma configurations that have intrigued plasma physicists for over two decades. Sometimes called magnetic vortices, magnetic smoke rings, or plasmoids, spheromaks first attracted attention as a possible controlled thermonuclear plasma confinement scheme, but are now known to have many other applications.

This book begins with a review of the basic concepts of magnetohydrodynamics and toroidal magnetic configurations, then provides a detailed exposition of the 3D topological concepts underlying spheromak physics, namely magnetic helicity, Taylor relaxation, force-free equilibria, and tilt stability. It then examines spheromak formation techniques, driven and isolated configurations, dynamo concepts, practical experimental issues, diagnostics, and a number of applications. The book concludes by showing how spheromak ideas are closely related to the physics of solar prominences and interplanetary magnetic clouds.


Contents:

  • Basic Concepts
  • Magnetic Helicity
  • Relaxation of an Isolated Configuration to the Taylor State
  • Relaxation in Driven Configurations
  • The MHD Energy Principle, Helicity, and Taylor States
  • Survey of Spheromak Formation Schemes
  • Classification of Regimes: An Imperfect Analogy to Thermodynamics
  • Analysis of Isolated Cylindrical Spheromaks
  • The Role of the Wall
  • Analysis of Driven Spheromaks: Strong Coupling
  • Helicity Flow and Dynamos
  • Confinement and Transport in Spheromaks
  • Some Important Practical Issues
  • Basic Diagnostics for Spheromaks
  • Applications of Spheromaks
  • Solar and Space Phenomena Related to Spheromaks


Readership: Graduate students and advanced undergraduates who have taken a course in plasma magnetohydrodynamics, laboratory plasma physicists, solar & space plasma physicists, and scientists interested in the topological dynamics of self-organizing configurations.

356pp Pub. date: Jan 2000
ISBN 978-1-86094-141-2
1-86094-141-9
US$78 / £53
Copyright © 2008 Imperial College Press. All rights reserved.