Alpha Channeling in a Rotating Plasma

Details Alpha Channeling in a Rotating Plasma Alpha Channeling in a Rotating Plasma

2008-08-28

arxiv.org/abs/0808.3999v1

Phys. Rev. Lett. 101, 205003 (2008)

Physics

Plasma Physics

4 pages and 3 figures

Scientific paper

10.1103/PhysRevLett.101.205003

The wave-particle alpha-channeling effect is generalized to include rotating plasma. Specifically, radio frequency waves can resonate with alpha particles in a mirror machine with ExB rotation to diffuse the alpha particles along constrained paths in phase space. Of major interest is that the alpha-particle energy, in addition to amplifying the RF waves, can directly enhance the rotation energy which in turn provides additional plasma confinement in centrifugal fusion reactors. An ancillary benefit is the rapid removal of alpha particles, which increases the fusion reactivity.

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