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Phys. Rev. Lett. 97, 225001 (2006) [4 pages]

Alpha Channeling in Mirror Machines

N. J. Fisch
Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540, USA
Received 20 December 2005; published 28 November 2006

The injection of radio frequency waves can cool charged particles trapped in a magnetic mirror. This cooling effect relies upon waves with azimuthal and axial phase velocities resonating with ions in different axial locations. The ions are then forced to diffuse along highly constrained orbits, such that they can only exit the magnetic trap at low energy. This cooling effect may have application to magnetic fusion mirror machines, where the free energy of the fusion by-products, the alpha particles, might be channeled into the waves that effect the cooling, thereby both extracting the fusion ash quickly and making that energy available in a convenient form for more useful purposes.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.97.225001
DOI: 10.1103/PhysRevLett.97.225001
PACS: 52.20.-j; 52.55.Jd; 52.55.Pi
  • 52.20.-j
    Elementary processes in plasma
  • 52.55.Jd
    Magnetic mirrors, gas dynamic traps
  • 52.55.Pi
    Fusion products effects and fast particle effects in plasma e.g. alpha-particles, etc
  • YEAR: 2006

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