Published 1989 | Version v1
Journal article Metadata-only

Detailed structure of the q profile around q=1 in JET

Creators

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

Description

The limitation of ablation on rational surfaces has been shown to be an efficient mechanism of striation formation during pellet ablation. In JET, a very large striation is observed when the pellet crosses the q=1 surface. This paper presents a thorough analysis of the pellet ablation in this region and shows that an extended shearless zone around q=1 is necessary to reproduce the experimental signal. Such a feature is likely to be an essential ingredient in the understanding of internal disruptions. (author) 4 refs., 2 figs

Additional details

Publishing Information

Journal Title
Europhysics Conference Abstracts
Journal Volume
13B
Series
Europhys. Conf. Abstr.
Journal Page Range
533-536
ISSN
0378-2271
CODEN
ECABD

Conference

Title
16. European conference on controlled fusion and plasma physics.
Dates
13-17 Mar 1989.
Place
Venice (Italy).

INIS

Country of Publication
Switzerland
Country of Input or Organization
Switzerland
INIS RN
21016448
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ABLATION; DIFFUSION; EXPERIMENTAL DATA; HEAT TRANSFER; JET TOKAMAK; PLASMA DISRUPTION; PLASMA RADIAL PROFILES; ROTATIONAL TRANSFORM; SAWTOOTH OSCILLATIONS; SHEAR; STRIATIONS
Descriptors DEC
CLOSED PLASMA DEVICES; DATA; ENERGY TRANSFER; INFORMATION; NUMERICAL DATA; OSCILLATIONS; THERMONUCLEAR DEVICES; TOKAMAK DEVICES