Published June 1991 | Version v1
Report Metadata-only

Fluctuation measurements by Langmuir probes during LHCD on ASDEX tokamak

Creators

  • 1. Ceskoslovenska Akademie Ved, Prague (Czechoslovakia). Ustav Fyziky Plazmatu
  • 2. Max-Planck-Institut fuer Plasmaphysik, Garching (Germany, F.R.)

Description

The level of edge electrostatic fluctuations decreases and the global particle/energy confinement improves during lower hybrid current drive (LHCD) regimes on ASDEX, when the total power remains below the initial OH power level. For higher powers, the fluctuations increase noticeably, whereas the global confinement is returning to its OH value. The observed increase of fluctuations is poloidally asymmetric and is caused by local power deposition in front of the grill antenna. (orig.)

Additional details

Publishing Information

Imprint Title
ASDEX contributions to the 18th European conference on controlled fusion and plasma heating
Imprint Pagination
150 p.
Journal Page Range
vp.
Report number
IPP--III/180

Conference

Title
18. European conference on controlled fusion and plasma heating.
Dates
3-7 Jun 1991.
Place
Berlin (Germany).

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
23003801
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANTENNAS; ASDEX TOKAMAK; CONFINEMENT TIME; ELECTROSTATICS; FLUCTUATIONS; LANGMUIR PROBE; LOWER HYBRID CURRENT DRIVE; LOWER HYBRID HEATING; NONLINEAR PROBLEMS; PLASMA CONFINEMENT; PLASMA SCRAPE-OFF LAYER; POWER INPUT
Descriptors DEC
BOUNDARY LAYERS; CLOSED PLASMA DEVICES; CONFINEMENT; ELECTRIC PROBES; ELECTRICAL EQUIPMENT; EQUIPMENT; HEATING; HIGH-FREQUENCY HEATING; LAYERS; NON-INDUCTIVE CURRENT DRIVE; PLASMA HEATING; PROBES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES; VARIATIONS

Optional Information

Collaborations
ASDEX Team.