Role of Alfvén instabilities in energetic ion transport

S. Bernabei; M. G. Bell; R. Budny; D. Darrow; E. D. Fredrickson; N. Gorelenkov; J. C. Hosea; R. Majeski; E. Mazzucato; R. Nazikian; C. K. Phillips; J. H. Rogers; G. Schilling; R. White; J. R. Wilson; F. Zonca; S. Zweben

doi:10.1063/1.873446

Role of Alfvén instabilities in energetic ion transport

S. Bernabei
, M. G. Bell
, R. Budny
, D. Darrow
, E. D. Fredrickson
, N. Gorelenkov
, J. C. Hosea
, R. Majeski
, E. Mazzucato
, R. Nazikian
, C. K. Phillips
, J. H. Rogers
, G. Schilling
, R. White
, J. R. Wilson
, F. Zonca
, S. Zweben

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

38 Scopus citations

Abstract

Experiments with plasma heating by waves at the ion cyclotron resonance of a minority species have shown that the heating efficiency degrades above a certain power threshold. It is found that this threshold is due to the destabilization of a branch of shear Alfvén waves, the Energetic Particle Modes, which causes a diffusive loss of fast ions. These modes not only play a fundamental role in the transport of the fast ions, but appear closely related to the formation of giant sawteeth.

Original language	English (US)
Pages (from-to)	1880-1884
Number of pages	5
Journal	Physics of Plasmas
Volume	6
Issue number	5 I
DOIs	https://doi.org/10.1063/1.873446
State	Published - May 1999

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1063/1.873446

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Bernabei, S., Bell, M. G., Budny, R., Darrow, D., Fredrickson, E. D., Gorelenkov, N., Hosea, J. C., Majeski, R., Mazzucato, E., Nazikian, R., Phillips, C. K., Rogers, J. H., Schilling, G., White, R., Wilson, J. R., Zonca, F., & Zweben, S. (1999). Role of Alfvén instabilities in energetic ion transport. Physics of Plasmas, 6(5 I), 1880-1884. https://doi.org/10.1063/1.873446

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title = "Role of Alfv{\'e}n instabilities in energetic ion transport",

abstract = "Experiments with plasma heating by waves at the ion cyclotron resonance of a minority species have shown that the heating efficiency degrades above a certain power threshold. It is found that this threshold is due to the destabilization of a branch of shear Alfv{\'e}n waves, the Energetic Particle Modes, which causes a diffusive loss of fast ions. These modes not only play a fundamental role in the transport of the fast ions, but appear closely related to the formation of giant sawteeth.",

author = "S. Bernabei and Bell, \{M. G.\} and R. Budny and D. Darrow and Fredrickson, \{E. D.\} and N. Gorelenkov and Hosea, \{J. C.\} and R. Majeski and E. Mazzucato and R. Nazikian and Phillips, \{C. K.\} and Rogers, \{J. H.\} and G. Schilling and R. White and Wilson, \{J. R.\} and F. Zonca and S. Zweben",

year = "1999",

month = may,

doi = "10.1063/1.873446",

language = "English (US)",

volume = "6",

pages = "1880--1884",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

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T1 - Role of Alfvén instabilities in energetic ion transport

AU - Bernabei, S.

AU - Bell, M. G.

AU - Budny, R.

AU - Darrow, D.

AU - Fredrickson, E. D.

AU - Gorelenkov, N.

AU - Hosea, J. C.

AU - Majeski, R.

AU - Mazzucato, E.

AU - Nazikian, R.

AU - Phillips, C. K.

AU - Rogers, J. H.

AU - Schilling, G.

AU - White, R.

AU - Wilson, J. R.

AU - Zonca, F.

AU - Zweben, S.

PY - 1999/5

Y1 - 1999/5

N2 - Experiments with plasma heating by waves at the ion cyclotron resonance of a minority species have shown that the heating efficiency degrades above a certain power threshold. It is found that this threshold is due to the destabilization of a branch of shear Alfvén waves, the Energetic Particle Modes, which causes a diffusive loss of fast ions. These modes not only play a fundamental role in the transport of the fast ions, but appear closely related to the formation of giant sawteeth.

AB - Experiments with plasma heating by waves at the ion cyclotron resonance of a minority species have shown that the heating efficiency degrades above a certain power threshold. It is found that this threshold is due to the destabilization of a branch of shear Alfvén waves, the Energetic Particle Modes, which causes a diffusive loss of fast ions. These modes not only play a fundamental role in the transport of the fast ions, but appear closely related to the formation of giant sawteeth.

UR - https://www.scopus.com/pages/publications/0000446912

UR - https://www.scopus.com/pages/publications/0000446912#tab=citedBy

U2 - 10.1063/1.873446

DO - 10.1063/1.873446

M3 - Article

AN - SCOPUS:0000446912

SN - 1070-664X

VL - 6

SP - 1880

EP - 1884

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 5 I

ER -

Role of Alfvén instabilities in energetic ion transport

Abstract

All Science Journal Classification (ASJC) codes

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