Current drive in a ponderomotive potential with sign reversal

N. J. Fisch; J. M. Rax; I. Y. Dodin

doi:10.1103/PhysRevLett.91.205004

Current drive in a ponderomotive potential with sign reversal

N. J. Fisch, J. M. Rax, I. Y. Dodin

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

31 Scopus citations

Abstract

Noninductive current drive can be accomplished through ponderomotive forces with high efficiency when the potential changes sign over the interaction region. The effect, which operates somewhat like a Maxwell demon, can be practiced upon both ions and electrons. The current-drive efficiencies, in principle, might be higher than those possible with conventional rf current-drive techniques. It remains, however, for us to identify how the effect might be implemented in a magnetic fusion device in a practical manner.

Original language	English (US)
Journal	Physical review letters
Volume	91
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.91.205004
State	Published - 2003

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.91.205004

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title = "Current drive in a ponderomotive potential with sign reversal",

abstract = "Noninductive current drive can be accomplished through ponderomotive forces with high efficiency when the potential changes sign over the interaction region. The effect, which operates somewhat like a Maxwell demon, can be practiced upon both ions and electrons. The current-drive efficiencies, in principle, might be higher than those possible with conventional rf current-drive techniques. It remains, however, for us to identify how the effect might be implemented in a magnetic fusion device in a practical manner.",

author = "Fisch, {N. J.} and Rax, {J. M.} and Dodin, {I. Y.}",

note = "Funding Information: The work is supported by DOE Contract No. DE-AC0276-CHO3073. One of us (N. J. F.) is in debt to the late Dr. Christof Litwin for stimulating discussions ?>over many years, in which Dr. Litwin predicted that ponderomotive effects could somehow be put to important use in driving toroidal current.",

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AB - Noninductive current drive can be accomplished through ponderomotive forces with high efficiency when the potential changes sign over the interaction region. The effect, which operates somewhat like a Maxwell demon, can be practiced upon both ions and electrons. The current-drive efficiencies, in principle, might be higher than those possible with conventional rf current-drive techniques. It remains, however, for us to identify how the effect might be implemented in a magnetic fusion device in a practical manner.

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Current drive in a ponderomotive potential with sign reversal

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