Published April 1989 | Version v1
Journal article Metadata-only

Behaviour of chaotic magnetic field lines in a periodic system (Tokamak)

Creators

  • 1. Commission of the European Communities, Abingdon (UK). JET Joint Undertaking

Description

The statistical properties of chaotic field lines are analytically studied and numerically tested from the field line equations. When the chaotic region coexists with magnetic islands, the chaotic field lines follow a diffusion process through the island chains. The corresponding diffusion coefficient is defined as the inverse of the average number of toroidal turns made by the field lines to cross one island chain and it is numerically computed

Abstract (French)

Les proprietes statistiques des lignes de champ chaotiques sont etudiees analytiquement et eprouvees numeriquement a partir des equations des lignes de champ. Dans le cas ou la region chaotique coexiste avec des ilots magnetiques, les lignes de champ chaotiques suivent une loi de diffusion a travers les chaines d'ilot. Le coefficient de diffusion correspondant est defini comme l'inverse du nombre moyen de tours toroidaux effectues par les lignes de champ pour traverser une chaine d'ilot et il est calcule numeriquement

Additional details

Additional titles

Original title (French)
Comportement des lignes de champ magnetique chaotiques dans un systeme periodique (Tokamak)

Publishing Information

Journal Title
Comptes Rendus des Seances de l'Academie des Sciences, Serie 2
Journal Volume
308
Journal Issue
15
Series
C. R. Seances Acad. Sci., Ser. 2.
Journal Page Range
1319-1325
ISSN
0249-6305
CODEN
CRSUD

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
20058393
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
MAGNETIC FIELD RIPPLES; PARTICLE MOBILITY; PLASMA MICROINSTABILITIES; TOKAMAK DEVICES
Descriptors DEC
CLOSED PLASMA DEVICES; INSTABILITY; MAGNETIC FIELD CONFIGURATIONS; MOBILITY; PLASMA INSTABILITY; THERMONUCLEAR DEVICES