Published May 1986
| Version v1
Report
Stabilisation of sawtooth oscillations by lower hybrid waves in ASDEX
Creators
- Soeldner, F.X.1
- Eckhartt, D.1
- Leuterer, F.1
- McCormick, K.1
- Becker, G.1
- Bosch, H.S.1
- Derfler, H.1
- Eberhagen, A.1
- Fussmann, G.1
- Gehre, O.1
- Gernhardt, J.1
- Gierke, G. v.1
- Glock, E.1
- Gruber, O.1
- Haas, G.1
- Hofmann, J.1
- Janeschitz, G.1
- Karger, F.1
- Klueber, O.1
- Kornherr, M.1
- Lackner, K.1
- Lenoci, M.1
- Lisitano, G.1
- Mast, F.1
- Mayer, H.M.1
- Meisel, D.1
- Mertens, V.1
- Muenich, M.1
- Murmann, H.1
- Niedermeyer, H.1
- Noterdaeme, J.M.1
- Poschenrieder, W.1
- Rapp, H.1
- Riedler, H.1
- Roehr, H.1
- Roth, J.1
- Schneider, F.1
- Setzensack, C.1
- Siller, G.1
- Speth, E.1
- Steuer, K.H.1
- Vien, T.1
- Vollmer, O.1
- Wagner, F.1
- Zasche, D.1
- Zouhar, M.1
- Izvozchikov, A.2
- Keilhacker, M.3
- Mueller, E.R.3
- Smeulders, P.3
- Pietrzyk, A.4
- Ryter, F.5
- 1. Association Euratom-Max-Planck-Institut fuer Plasmaphysik, Garching (Germany, F.R.)
- 2. AN SSSR, Leningrad
- 3. Commission of the European Communities, Abingdon (UK). JET Joint Undertaking
- 4. Seattle Univ., WA (USA)
- 5. CEA Centre d'Etudes Nucleaires de Grenoble, 38 (France)
Description
Stabilisation of sawteeth has become a clue problem for high power additional heating in large tokamaks where the oscillations in the central electron temperature may be as high as 50%. In Lower Hybrid experiments the sawteeth of Ohmic discharges have been observed to disappear. In this paper we study the parameter range for stabilisation of sawteeth accessible with the LH-system on ASDEX. The role of the LH wave spectrum is discussed. For application to NBI heating the LH-power requirements and the benefits for the energy confinement in sawtooth-free discharges are investigated. (orig.)
Additional details
Publishing Information
- Imprint Title
- ASDEX papers at the 13th European conference on controlled fusion and plasma physics
- Imprint Pagination
- 149 p.
- Journal Page Range
- p. 97-100.
- Report number
- IPP--III/110
Conference
- Title
- 13. European conference on controlled fusion and plasma heating.
- Dates
- 14-18 Apr 1986.
- Place
- Schliersee (Germany, F.R.).
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 18011281
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ASDEX TOKAMAK; JOULE HEATING; LOWER HYBRID HEATING; MICROWAVE RADIATION; PLASMA WAVES; STABILITY
- Descriptors DEC
- CLOSED PLASMA DEVICES; ELECTROMAGNETIC RADIATION; HEATING; HIGH-FREQUENCY HEATING; PLASMA HEATING; RADIATIONS; THERMONUCLEAR DEVICES; TOKAMAK DEVICES