Alpha-Particle-Driven Toroidal Alfvén Eigenmodes in the Tokamak Fusion Test Reactor

R. Nazikian; G. Y. Fu; M. G. Bell; R. E. Bell; R. V. Budny; C. E. Bush; Z. Chang; Y. Chen; C. Z. Cheng; D. S. Darrow; P. C. Efthimion; E. D. Fredrickson; B. Leblanc; R. Majeski; E. Mazzucato; S. S. Medley; H. K. Park; M. Holthaus; J. D. Strachan; E. J. Synakowski; G. Taylor; S. Von Goeler; R. B. White; K. L. Wong; S. J. Zweben

doi:10.1103/PhysRevLett.78.2976

Alpha-Particle-Driven Toroidal Alfvén Eigenmodes in the Tokamak Fusion Test Reactor

R. Nazikian
, G. Y. Fu
, M. G. Bell
, R. E. Bell
, R. V. Budny
, C. E. Bush
, Z. Chang
, Y. Chen
, C. Z. Cheng
, D. S. Darrow
, P. C. Efthimion
, E. D. Fredrickson
, B. Leblanc
, R. Majeski
, E. Mazzucato
, S. S. Medley
, H. K. Park
, M. Holthaus
, J. D. Strachan
, E. J. Synakowski

G. Taylor, S. Von Goeler, R. B. White, K. L. Wong, S. J. Zweben

Princeton Plasma Physics Laboratory
Oak Ridge National Laboratory
RAS - Ioffe Physico Technical Institute

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

132 Scopus citations

Abstract

Alpha-particle-driven toroidal Alfvén eigenmodes (TAEs) have been observed for the first time in deuterium-tritium (D-T) plasmas on the tokamak fusion test reactor (TFTR). These modes are observed 100–200 ms following the end of neutral beam injection in plasmas with reduced central magnetic shear and elevated central safety factor [q(0) > 1]. Mode activity is localized to the central region of the discharge (r/a < 0.5) with magnetic fluctuation level B_⊥^¯/B_舔 ∼10⁻⁵and toroidal mode numbers in the range n = 2–4, consistent with theoretical calculations of α-TAE stability in TFTR.

Original language	English
Pages (from-to)	2976-2979
Number of pages	4
Journal	Physical Review Letters
Volume	78
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.78.2976
State	Published - 14 Apr 1997

Access to Document

10.1103/PhysRevLett.78.2976

Cite this

Nazikian, R., Fu, G. Y., Bell, M. G., Bell, R. E., Budny, R. V., Bush, C. E., Chang, Z., Chen, Y., Cheng, C. Z., Darrow, D. S., Efthimion, P. C., Fredrickson, E. D., Leblanc, B., Majeski, R., Mazzucato, E., Medley, S. S., Park, H. K., Holthaus, M., Strachan, J. D., ... Zweben, S. J. (1997). Alpha-Particle-Driven Toroidal Alfvén Eigenmodes in the Tokamak Fusion Test Reactor. Physical Review Letters, 78(15), 2976-2979. https://doi.org/10.1103/PhysRevLett.78.2976

@article{d80f22f490c64f1681f8b6b65899c879,

title = "Alpha-Particle-Driven Toroidal Alfv{\'e}n Eigenmodes in the Tokamak Fusion Test Reactor",

abstract = "Alpha-particle-driven toroidal Alfv{\'e}n eigenmodes (TAEs) have been observed for the first time in deuterium-tritium (D-T) plasmas on the tokamak fusion test reactor (TFTR). These modes are observed 100–200 ms following the end of neutral beam injection in plasmas with reduced central magnetic shear and elevated central safety factor [q(0) > 1]. Mode activity is localized to the central region of the discharge (r/a < 0.5) with magnetic fluctuation level B⊥¯/B舔 ∼10−5and toroidal mode numbers in the range n = 2–4, consistent with theoretical calculations of α-TAE stability in TFTR.",

author = "R. Nazikian and Fu, \{G. Y.\} and Bell, \{M. G.\} and Bell, \{R. E.\} and Budny, \{R. V.\} and Bush, \{C. E.\} and Z. Chang and Y. Chen and Cheng, \{C. Z.\} and Darrow, \{D. S.\} and Efthimion, \{P. C.\} and Fredrickson, \{E. D.\} and B. Leblanc and R. Majeski and E. Mazzucato and Medley, \{S. S.\} and Park, \{H. K.\} and M. Holthaus and Strachan, \{J. D.\} and Synakowski, \{E. J.\} and G. Taylor and \{Von Goeler\}, S. and White, \{R. B.\} and Wong, \{K. L.\} and Zweben, \{S. J.\}",

year = "1997",

month = apr,

day = "14",

doi = "10.1103/PhysRevLett.78.2976",

language = "English",

volume = "78",

pages = "2976--2979",

number = "15",

}

Nazikian, R, Fu, GY, Bell, MG, Bell, RE, Budny, RV, Bush, CE, Chang, Z, Chen, Y, Cheng, CZ, Darrow, DS, Efthimion, PC, Fredrickson, ED, Leblanc, B, Majeski, R, Mazzucato, E, Medley, SS, Park, HK, Holthaus, M, Strachan, JD, Synakowski, EJ, Taylor, G, Von Goeler, S, White, RB, Wong, KL & Zweben, SJ 1997, 'Alpha-Particle-Driven Toroidal Alfvén Eigenmodes in the Tokamak Fusion Test Reactor', Physical Review Letters, vol. 78, no. 15, pp. 2976-2979. https://doi.org/10.1103/PhysRevLett.78.2976

TY - JOUR

T1 - Alpha-Particle-Driven Toroidal Alfvén Eigenmodes in the Tokamak Fusion Test Reactor

AU - Nazikian, R.

AU - Fu, G. Y.

AU - Bell, M. G.

AU - Bell, R. E.

AU - Budny, R. V.

AU - Bush, C. E.

AU - Chang, Z.

AU - Chen, Y.

AU - Cheng, C. Z.

AU - Darrow, D. S.

AU - Efthimion, P. C.

AU - Fredrickson, E. D.

AU - Leblanc, B.

AU - Majeski, R.

AU - Mazzucato, E.

AU - Medley, S. S.

AU - Park, H. K.

AU - Holthaus, M.

AU - Strachan, J. D.

AU - Synakowski, E. J.

AU - Taylor, G.

AU - Von Goeler, S.

AU - White, R. B.

AU - Wong, K. L.

AU - Zweben, S. J.

PY - 1997/4/14

Y1 - 1997/4/14

N2 - Alpha-particle-driven toroidal Alfvén eigenmodes (TAEs) have been observed for the first time in deuterium-tritium (D-T) plasmas on the tokamak fusion test reactor (TFTR). These modes are observed 100–200 ms following the end of neutral beam injection in plasmas with reduced central magnetic shear and elevated central safety factor [q(0) > 1]. Mode activity is localized to the central region of the discharge (r/a < 0.5) with magnetic fluctuation level B⊥¯/B舔 ∼10−5and toroidal mode numbers in the range n = 2–4, consistent with theoretical calculations of α-TAE stability in TFTR.

AB - Alpha-particle-driven toroidal Alfvén eigenmodes (TAEs) have been observed for the first time in deuterium-tritium (D-T) plasmas on the tokamak fusion test reactor (TFTR). These modes are observed 100–200 ms following the end of neutral beam injection in plasmas with reduced central magnetic shear and elevated central safety factor [q(0) > 1]. Mode activity is localized to the central region of the discharge (r/a < 0.5) with magnetic fluctuation level B⊥¯/B舔 ∼10−5and toroidal mode numbers in the range n = 2–4, consistent with theoretical calculations of α-TAE stability in TFTR.

UR - https://www.scopus.com/pages/publications/6944225493

UR - https://www.scopus.com/pages/publications/6944225493#tab=citedBy

U2 - 10.1103/PhysRevLett.78.2976

DO - 10.1103/PhysRevLett.78.2976

M3 - Article

AN - SCOPUS:6944225493

SN - 0031-9007

VL - 78

SP - 2976

EP - 2979

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

ER -

Alpha-Particle-Driven Toroidal Alfvén Eigenmodes in the Tokamak Fusion Test Reactor

Abstract

Access to Document

Other files and links

Fingerprint

Cite this