Alpha-channeling simulation experiment in the DIII-D tokamak

K. L. Wong; R. Budny; R. Nazikian; C. C. Petty; C. M. Greenfield; W. W. Heidbrink; E. Ruskov

doi:10.1103/PhysRevLett.93.085002

Alpha-channeling simulation experiment in the DIII-D tokamak

K. L. Wong
, R. Budny
, R. Nazikian
, C. C. Petty
, C. M. Greenfield
, W. W. Heidbrink
, E. Ruskov

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

An experiment of alpha-channeling simulation in the D-III-D tokamak was discussed. It was found that Alfvén instabilities can reduce the central magnetic shear via redistribution of energetic ions. It was shown that Alfvén modes alone selectively move some α particles to form a transport barrier, in addition to electron heating. It was suggested that they can susgtain a steady state internal transport barrier as demonstrated in the DIII-D tokamak experiment.

Original language	English
Article number	085002
Pages (from-to)	085002-1-085002-4
Journal	Physical Review Letters
Volume	93
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.93.085002
State	Published - Aug 20 2004
Externally published	Yes

Funding

This work is supported by U.S. DoE under Con?>tracts No. DE-AC02-76CH03073 and No. DE-AC03-99ER54463.

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10.1103/PhysRevLett.93.085002

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abstract = "An experiment of alpha-channeling simulation in the D-III-D tokamak was discussed. It was found that Alfv{\'e}n instabilities can reduce the central magnetic shear via redistribution of energetic ions. It was shown that Alfv{\'e}n modes alone selectively move some α particles to form a transport barrier, in addition to electron heating. It was suggested that they can susgtain a steady state internal transport barrier as demonstrated in the DIII-D tokamak experiment.",

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AU - Petty, C. C.

AU - Greenfield, C. M.

AU - Heidbrink, W. W.

AU - Ruskov, E.

PY - 2004/8/20

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Alpha-channeling simulation experiment in the DIII-D tokamak

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