Published June 1989 | Version v1
Report Metadata-only

Lower hybrid wave stochasticity in tokamaks: a universal mechanism for bridging the spectral gap

Creators

  • 1. Association Euratom-CEA, Centre d'Etudes Nucleaires de Cadarache, 13 - Saint-Paul-lez-Durance (France). Dept. de Recherches sur la Fusion Controlee
  • 2. Commission of the European Communities, Abingdon, (UK). JET Joint Undertaking

Description

A global approach to the problem of LHCD is being attempted. For typical tokamak aspect ratios the propagation over long trajectories is stochastic and we describe the dynamics of the wave in the random phase approximation (RPA). The results concerning the absorbed power spectrum show that it can be much broader and distinct from the launched spectrum, when the spectral gap has to be bridged by means of the stochastic diffusion. Moreover, the absorption rate has a radial distribution from which the total power deposition and driven current profiles are calculated

Part of:
Jet Joint Undertaking. Vol. 2

Additional details

Publishing Information

Imprint Title
Jet Joint Undertaking. Vol. 2
Imprint Pagination
648 p.
Journal Page Range
p. A140-A143.
Report number
EUR--12323

Conference

Title
15. European Conference on Controlled Fusion and Plasma Heating.
Dates
16-20 May 1988.
Place
Dubrovnik (Yugoslavia).

INIS

Country of Publication
European Commission (EC), Brussels (Belgium)
Country of Input or Organization
European Commission (EC), Brussels (Belgium)
INIS RN
22010909
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
FREQUENCY MIXING; HEATING RATE; LOWER HYBRID HEATING; MAGNETOHYDRODYNAMICS; PLASMA WAVES; RANDOM PHASE APPROXIMATION; RESONANCE; TOKAMAK DEVICES; WAVE PROPAGATION
Descriptors DEC
CLOSED PLASMA DEVICES; FLUID MECHANICS; HEATING; HIGH-FREQUENCY HEATING; HYDRODYNAMICS; MECHANICS; PLASMA HEATING; THERMONUCLEAR DEVICES

Optional Information

Secondary number(s)
EUR-JET-PR--6.