Magneto-inertial fusion

From Wikipedia, the free encyclopedia
Jump to: navigation, search

Magneto-inertial fusion (MIF) describes a class of fusion devices which combine aspects of magnetic confinement fusion and inertial confinement fusion in an attempt to lower the cost of fusion devices.[1] MIF uses magnetic fields to confine an initial warm, low-density plasma, then compresses that plasma to fusion conditions using an impulsive driver or "liner."

Magneto-inertial fusion approaches differ in the degree of magnetic organization present in the initial target, as well as the nature and speed of the imploding liner. Laser, solid,[2] liquid and plasma[3] liners have all been proposed.

Magneto-inertial fusion begins with a warm dense plasma target containing a magnetic field. Plasma's conductivity prevents it from crossing magnetic field lines. As a result, compressing the target amplifies the magnetic field.[4], [5] [6] Since the magnetic field reduces particle transport, the field insulates the target from the liner.

In popular fiction[edit]

The starships in Mike Kupari's novel Her Brother's Keeper are propelled in part by magneto-inertial fusion rockets.[7]

See also[edit]


  1. ^ Why Magnetized Target Fusion Offers a Low-Cost Development Path For Fusion Energy (PDF) 
  2. ^ FRX-L: A Field-Reversed Configuration Plasma Injector For Magnetized Target Fusion (PDF) 
  3. ^ Plasma-Jet Driven Magneto-Inertial Fusion 
  4. ^ Status of the US program in magneto-inertial fusion (PDF) 
  5. ^ F. J. Wessel, F. S. Felber, N. C. Wild, and H. U. Rahman, Generation of high magnetic fields using a gas-puff Z-pinch. Applied Physics Letters 48, 48 (1986), 1119–1121.
  6. ^ H. U. Rahman, F. J. Wessel, and N. Rostoker, Staged Z-pinch. Physical Review Letters 74 (1995), 714.
  7. ^ Kupari, Mike (2015). Her Brother's Keeper. Riverdale, New York: Baen Books. p. 40. ISBN 978-1-4767-8090-0. OCLC 920469663.