Alfvén wave experiments in the Phaedrus-T tokamak

R. Majeski; P. Probert; P. Moroz; T. Intrator; R. Breun; D. Brouchous; H. Y. Che; J. R. DeKock; D. Diebold; M. Doczy; R. Fonck; N. Hershkowitz; R. D. Johnson; M. Kishinevsky; G. McKee; J. Meyer; P. Nonn; S. P. Oliva; J. Pew; J. Sorensen; T. Tanaka; M. Vukovic; G. Winz

doi:10.1063/1.860736

Alfvén wave experiments in the Phaedrus-T tokamak

R. Majeski
, P. Probert
, P. Moroz
, T. Intrator
, R. Breun
, D. Brouchous
, H. Y. Che
, J. R. DeKock
, D. Diebold
, M. Doczy
, R. Fonck
, N. Hershkowitz
, R. D. Johnson
, M. Kishinevsky
, G. McKee
, J. Meyer
, P. Nonn
, S. P. Oliva
, J. Pew
, J. Sorensen

T. Tanaka, M. Vukovic, G. Winz

PPPL Tokamak Expermntl Science

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

15 Scopus citations

Abstract

Heating in the Alfvén resonant regime has been demonstrated in the Phaedrus-T tokamak [Fusion Technol. 19, 1327 (1991)]. Electron heating during injection of radio-frequency (rf) power is indicated by a 30%-40% drop in loop voltage and modifications in sawtooth activity. Heating was observed at a frequency ω_rf≈0.7Ω_i on axis, using a two-strap fast wave antenna operated at 7 and 9.2 MHz with 180° phasing (N_∥ ∼ 100). Numerical modeling with the fast wave code FASTWA [Plasma Phys. Controlled Fusion 33, 417 (1991)] indicates that for Phaedrus-T parameters the kinetic Alfvén wave is excited via mode conversion from a surface fast wave at the Alfvén resonance and is subsequently damped on electrons.

Original language	English (US)
Pages (from-to)	2506-2512
Number of pages	7
Journal	Physics of Fluids B
Volume	5
Issue number	7
DOIs	https://doi.org/10.1063/1.860736
State	Published - 1993

All Science Journal Classification (ASJC) codes

Computational Mechanics
Condensed Matter Physics
Mechanics of Materials
General Physics and Astronomy
Fluid Flow and Transfer Processes

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10.1063/1.860736

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Majeski, R., Probert, P., Moroz, P., Intrator, T., Breun, R., Brouchous, D., Che, H. Y., DeKock, J. R., Diebold, D., Doczy, M., Fonck, R., Hershkowitz, N., Johnson, R. D., Kishinevsky, M., McKee, G., Meyer, J., Nonn, P., Oliva, S. P., Pew, J., ... Winz, G. (1993). Alfvén wave experiments in the Phaedrus-T tokamak. Physics of Fluids B, 5(7), 2506-2512. https://doi.org/10.1063/1.860736

@article{2273ce1f1c904232a0782d7df8837124,

title = "Alfv{\'e}n wave experiments in the Phaedrus-T tokamak",

abstract = "Heating in the Alfv{\'e}n resonant regime has been demonstrated in the Phaedrus-T tokamak [Fusion Technol. 19, 1327 (1991)]. Electron heating during injection of radio-frequency (rf) power is indicated by a 30\%-40\% drop in loop voltage and modifications in sawtooth activity. Heating was observed at a frequency ωrf≈0.7Ωi on axis, using a two-strap fast wave antenna operated at 7 and 9.2 MHz with 180° phasing (N∥ ∼ 100). Numerical modeling with the fast wave code FASTWA [Plasma Phys. Controlled Fusion 33, 417 (1991)] indicates that for Phaedrus-T parameters the kinetic Alfv{\'e}n wave is excited via mode conversion from a surface fast wave at the Alfv{\'e}n resonance and is subsequently damped on electrons.",

author = "R. Majeski and P. Probert and P. Moroz and T. Intrator and R. Breun and D. Brouchous and Che, \{H. Y.\} and DeKock, \{J. R.\} and D. Diebold and M. Doczy and R. Fonck and N. Hershkowitz and Johnson, \{R. D.\} and M. Kishinevsky and G. McKee and J. Meyer and P. Nonn and Oliva, \{S. P.\} and J. Pew and J. Sorensen and T. Tanaka and M. Vukovic and G. Winz",

year = "1993",

doi = "10.1063/1.860736",

language = "English (US)",

volume = "5",

pages = "2506--2512",

journal = "Physics of Fluids B",

issn = "0899-8221",

publisher = "American Institute of Physics",

number = "7",

}

Majeski, R, Probert, P, Moroz, P, Intrator, T, Breun, R, Brouchous, D, Che, HY, DeKock, JR, Diebold, D, Doczy, M, Fonck, R, Hershkowitz, N, Johnson, RD, Kishinevsky, M, McKee, G, Meyer, J, Nonn, P, Oliva, SP, Pew, J, Sorensen, J, Tanaka, T, Vukovic, M & Winz, G 1993, 'Alfvén wave experiments in the Phaedrus-T tokamak', Physics of Fluids B, vol. 5, no. 7, pp. 2506-2512. https://doi.org/10.1063/1.860736

TY - JOUR

T1 - Alfvén wave experiments in the Phaedrus-T tokamak

AU - Majeski, R.

AU - Probert, P.

AU - Moroz, P.

AU - Intrator, T.

AU - Breun, R.

AU - Brouchous, D.

AU - Che, H. Y.

AU - DeKock, J. R.

AU - Diebold, D.

AU - Doczy, M.

AU - Fonck, R.

AU - Hershkowitz, N.

AU - Johnson, R. D.

AU - Kishinevsky, M.

AU - McKee, G.

AU - Meyer, J.

AU - Nonn, P.

AU - Oliva, S. P.

AU - Pew, J.

AU - Sorensen, J.

AU - Tanaka, T.

AU - Vukovic, M.

AU - Winz, G.

PY - 1993

Y1 - 1993

N2 - Heating in the Alfvén resonant regime has been demonstrated in the Phaedrus-T tokamak [Fusion Technol. 19, 1327 (1991)]. Electron heating during injection of radio-frequency (rf) power is indicated by a 30%-40% drop in loop voltage and modifications in sawtooth activity. Heating was observed at a frequency ωrf≈0.7Ωi on axis, using a two-strap fast wave antenna operated at 7 and 9.2 MHz with 180° phasing (N∥ ∼ 100). Numerical modeling with the fast wave code FASTWA [Plasma Phys. Controlled Fusion 33, 417 (1991)] indicates that for Phaedrus-T parameters the kinetic Alfvén wave is excited via mode conversion from a surface fast wave at the Alfvén resonance and is subsequently damped on electrons.

AB - Heating in the Alfvén resonant regime has been demonstrated in the Phaedrus-T tokamak [Fusion Technol. 19, 1327 (1991)]. Electron heating during injection of radio-frequency (rf) power is indicated by a 30%-40% drop in loop voltage and modifications in sawtooth activity. Heating was observed at a frequency ωrf≈0.7Ωi on axis, using a two-strap fast wave antenna operated at 7 and 9.2 MHz with 180° phasing (N∥ ∼ 100). Numerical modeling with the fast wave code FASTWA [Plasma Phys. Controlled Fusion 33, 417 (1991)] indicates that for Phaedrus-T parameters the kinetic Alfvén wave is excited via mode conversion from a surface fast wave at the Alfvén resonance and is subsequently damped on electrons.

UR - https://www.scopus.com/pages/publications/4043173914

UR - https://www.scopus.com/pages/publications/4043173914#tab=citedBy

U2 - 10.1063/1.860736

DO - 10.1063/1.860736

M3 - Article

AN - SCOPUS:4043173914

SN - 0899-8221

VL - 5

SP - 2506

EP - 2512

JO - Physics of Fluids B

JF - Physics of Fluids B

IS - 7

ER -

Alfvén wave experiments in the Phaedrus-T tokamak

Abstract

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