Published May 2000 | Version v1
Journal article Metadata-only

Fast particle destabilization of toroidicity-induced Alfven eigenmodes in the National Spherical Torus Experiment

Creators

  • 1. Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey 08543-0451 (United States)
  • 2. TRINITI, Troitsk, Moscow region, 142092, Russia (Russian Federation)

Description

Toroidicity-induced Alfven eigenmode (TAE) stability in the National Spherical Torus Experiment (NSTX) [S. M. Kaye, M. Ono, Y.-K. M. Peng et al., Fusion Technol. 36, 16 (1999)] is analyzed using the improved NOVA-K code [N. N. Gorelenkov, C. Z. Cheng, and G. Y. Fu, Phys. Plasmas 6, 2802 (1999)], which includes finite orbit width and Larmor radius effects and is able to predict the saturation amplitude for the mode using the quasilinear theory. A broad spectrum of unstable global TAEs with different toroidal mode numbers is predicted. Due to the strong poloidal field and the presence of the magnetic well in NSTX, better particle confinement in the presence of TAEs in comparison with tokamaks is illustrated making use of the ORBIT code [R. B. White and M. S. Chance, Phys. Fluids 27, 2455 (1984)]. (c) 2000 American Institute of Physics

Additional details

Publishing Information

Journal Title
Physics of Plasmas
Journal Volume
7
Journal Issue
5
Journal Page Range
p. 1433-1436
ISSN
1070-664X
CODEN
PHPAEN

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
32059731
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ALFVEN WAVES; PLASMA CONFINEMENT; PLASMA INSTABILITY; THEORETICAL DATA; TOROIDAL CONFIGURATION
Descriptors DEC
ANNULAR SPACE; CLOSED CONFIGURATIONS; CONFIGURATION; CONFINEMENT; DATA; HYDROMAGNETIC WAVES; INFORMATION; INSTABILITY; MAGNETIC FIELD CONFIGURATIONS; NUMERICAL DATA; SPACE
Proposed descriptors and Free-text terms
plasma toroidal confinement