Published April 29, 2005
| Version v1
Journal article
Novel mechanism of anomalous electron heat conductivity and thermal crashes during Alfvenic activity in the Wendelstein 7-AS stellarator
Creators
- 1. Institute for Nuclear Research, Prospekt Nauky 47, Kyiv 03680 (Ukraine)
- 2. Max-Planck-Institut fuer Plasmaphysik, IPP-EURATOM Association, D-17489 Greifswald (Germany)
Description
Enhanced plasma heat conductivity in the presence of kinetic Alfven waves (KAW) is predicted theoretically. The enhancement is shown to be strongest when the electron collision frequency exceeds the particle transit frequency in the wave field. Alfven waves (both KAW and ideal MHD Alfven eigenmodes generating the KAW) are studied in a shot of the Wendelstein 7-AS stellarator. On the basis of these results, strong thermal crashes observed during bursting Alfvenic activity in the mentioned shot are explained
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 94
- Journal Issue
- 16
- Journal Page Range
- p. 165004-165004.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36069250
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- ALFVEN WAVES; ELECTRON COLLISIONS; ELECTRONS; MAGNETOHYDRODYNAMICS; PLASMA; STELLARATORS
- Descriptors DEC
- CLOSED PLASMA DEVICES; COLLISIONS; ELEMENTARY PARTICLES; FERMIONS; FLUID MECHANICS; HYDRODYNAMICS; HYDROMAGNETIC WAVES; LEPTONS; MECHANICS; THERMONUCLEAR DEVICES
Optional Information
- Notes
- (c) 2005 The American Physical Society