Published 1992 | Version v1
Journal article Metadata-only

Fast wave spectral properties in ITER tokamak

Creators

  • 1. I.N. Vekua Institute of Physics and Technology, Sukhumi (Georgia)
  • 2. Keldysh Institute of Applied Sciences, Moscow (Russian Federation)

Description

Fast wave excitation in ITER tokamak is proposed to use for ICRF heating and current drive. The spectrum and field structure of fast magnetosonic (FMS) waves in cylindrical current-carrying inhomogeneous plasma have been studied in detail, but 2D simulations of fast wave excitation in hot toroidal plasmas show a very complicated picture which is hardly understood. Therefore, it is important to examine FMS wave properties in toroidal plasma to interpret them. The FMS excitation in ITER plasma has been analyzed numerically using 1D and 2D full wave codes, developed on the basis of MHD plasma model with effective collisional damping. In order to find FMS spectrum, which overlaps the Alfven continuum in large tokamaks, it is convenient to investigate the dependence of plasma total active impedance on driving frequency. The special choice of effective damping in numerical calculations enables one to describe correctly local Alfven resonance absorption and to distinguish fast wave eigenfrequencies by maxima on impedance curve. (author) 4 refs., 4 figs

Additional details

Publishing Information

Journal Title
Europhysics Conference Abstracts
Journal Volume
16C
Journal Issue
Part I
Journal Page Range
p. I-319-I-322.
ISSN
0378-2271
CODEN
ECABDW

Conference

Title
1992 international conference on plasma physics.
Dates
29 Jun - 3 Jul 1992.
Place
Innsbruck (Austria).

INIS

Country of Publication
Switzerland
Country of Input or Organization
Switzerland
INIS RN
25076417
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ALFVEN WAVES; COMPUTERIZED SIMULATION; CURRENT-DRIVE HEATING; DAMPING; DISPERSION RELATIONS; FAST MAGNETOACOUSTIC WAVES; ICR HEATING; INHOMOGENEOUS PLASMA; ITER TOKAMAK; MAGNETOHYDRODYNAMICS; ONE-DIMENSIONAL CALCULATIONS; PLASMA SIMULATION; SPECTRA; THEORETICAL DATA; TWO-DIMENSIONAL CALCULATIONS
Descriptors DEC
CLOSED PLASMA DEVICES; DATA; FLUID MECHANICS; HEATING; HIGH-FREQUENCY HEATING; HYDRODYNAMICS; HYDROMAGNETIC WAVES; INFORMATION; MAGNETOACOUSTIC WAVES; MECHANICS; NUMERICAL DATA; PLASMA; PLASMA HEATING; SIMULATION; THERMONUCLEAR DEVICES; THERMONUCLEAR REACTORS; TOKAMAK DEVICES; TOKAMAK TYPE REACTORS