Observation of compressional Alfvén modes during neutral-beam heating on the National Spherical Torus Experiment

E. D. Fredrickson; N. Gorelenkov; C. Z. Cheng; R. Bell; D. Darrow; D. Johnson; S. Kaye; B. LeBlanc; J. Menard; S. Kubota; W. Peebles

doi:10.1103/PhysRevLett.87.145001

Observation of compressional Alfvén modes during neutral-beam heating on the National Spherical Torus Experiment

E. D. Fredrickson
, N. Gorelenkov
, C. Z. Cheng
, R. Bell
, D. Darrow
, D. Johnson
, S. Kaye
, B. LeBlanc
, J. Menard
, S. Kubota
, W. Peebles

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

89 Scopus citations

Abstract

Multiple, coherent modes at frequencies up to the deuterium ion cyclotron frequency were observed during neutral-beam injection heating of the National Spherical Torus Experiment (NSTX). The modes were seen mainly in the frequency range of 0.4-2.5 MHz. The modes were identified as compressional Alfven waves excited by a resonant interaction with the energetic beam ions.

Original language	English (US)
Article number	145001
Pages (from-to)	145001/1-145001/4
Journal	Physical review letters
Volume	87
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.87.145001
State	Published - Oct 1 2001

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.87.145001

Cite this

Fredrickson, E. D., Gorelenkov, N., Cheng, C. Z., Bell, R., Darrow, D., Johnson, D., Kaye, S., LeBlanc, B., Menard, J., Kubota, S., & Peebles, W. (2001). Observation of compressional Alfvén modes during neutral-beam heating on the National Spherical Torus Experiment. Physical review letters, 87(14), 145001/1-145001/4. Article 145001. https://doi.org/10.1103/PhysRevLett.87.145001

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abstract = "Multiple, coherent modes at frequencies up to the deuterium ion cyclotron frequency were observed during neutral-beam injection heating of the National Spherical Torus Experiment (NSTX). The modes were seen mainly in the frequency range of 0.4-2.5 MHz. The modes were identified as compressional Alfven waves excited by a resonant interaction with the energetic beam ions.",

author = "Fredrickson, \{E. D.\} and N. Gorelenkov and Cheng, \{C. Z.\} and R. Bell and D. Darrow and D. Johnson and S. Kaye and B. LeBlanc and J. Menard and S. Kubota and W. Peebles",

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doi = "10.1103/PhysRevLett.87.145001",

language = "English (US)",

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Fredrickson, ED, Gorelenkov, N, Cheng, CZ, Bell, R, Darrow, D, Johnson, D, Kaye, S , LeBlanc, B , Menard, J, Kubota, S & Peebles, W 2001, 'Observation of compressional Alfvén modes during neutral-beam heating on the National Spherical Torus Experiment', Physical review letters, vol. 87, no. 14, 145001, pp. 145001/1-145001/4. https://doi.org/10.1103/PhysRevLett.87.145001

TY - JOUR

T1 - Observation of compressional Alfvén modes during neutral-beam heating on the National Spherical Torus Experiment

AU - Fredrickson, E. D.

AU - Gorelenkov, N.

AU - Cheng, C. Z.

AU - Bell, R.

AU - Darrow, D.

AU - Johnson, D.

AU - Kaye, S.

AU - LeBlanc, B.

AU - Menard, J.

AU - Kubota, S.

AU - Peebles, W.

PY - 2001/10/1

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N2 - Multiple, coherent modes at frequencies up to the deuterium ion cyclotron frequency were observed during neutral-beam injection heating of the National Spherical Torus Experiment (NSTX). The modes were seen mainly in the frequency range of 0.4-2.5 MHz. The modes were identified as compressional Alfven waves excited by a resonant interaction with the energetic beam ions.

AB - Multiple, coherent modes at frequencies up to the deuterium ion cyclotron frequency were observed during neutral-beam injection heating of the National Spherical Torus Experiment (NSTX). The modes were seen mainly in the frequency range of 0.4-2.5 MHz. The modes were identified as compressional Alfven waves excited by a resonant interaction with the energetic beam ions.

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Observation of compressional Alfvén modes during neutral-beam heating on the National Spherical Torus Experiment

Abstract

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