Published 1990 | Version v1
Journal article Metadata-only

Parametric decay instabilities studies in Asdex

Creators

  • 1. ENEA, Frascati (Italy). Centro Ricerche Energia
  • 2. Commission of the European Communities, Abingdon (UK). JET Joint Undertaking

Description

Search for possible effects of parametric decay instabilities (PDI) on LH current drive and heating was conducted on Asdex through the analysis of the signal collected by a RF probe located in the scrape off layer plasma. The frequency spectrum, whose shape is unaffected by the position of the probe, was characterized by two parameters: the width of 2.45 GHz pump line at -10db from the maximum Δfp, and the intensity of the first satellite, downshifted in frequency from the pump by one ion cyclotron frequency evaluated at the torus outer edge. (author) 8 refs., 5 figs

Additional details

Publishing Information

Journal Title
Europhysics Conference Abstracts
Journal Volume
14B
Journal Issue
PartIII
Series
Europhys. Conf. Abstr.
Journal Page Range
1203-1206
ISSN
0378-2271
CODEN
ECABD

Conference

Title
17. EPS conference on controlled fusion and plasma heating.
Dates
25-29 Jun 1990.
Place
Amsterdam (Netherlands).

INIS

Country of Publication
Switzerland
Country of Input or Organization
Switzerland
INIS RN
23051719
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ASDEX TOKAMAK; DECAY INSTABILITY; DISPERSION RELATIONS; EXPERIMENTAL DATA; GHZ RANGE 01-100; ION CYCLOTRON-RESONANCE; LINE BROADENING; LOWER HYBRID CURRENT DRIVE; LOWER HYBRID HEATING; PARAMETRIC INSTABILITIES; PLASMA SCRAPE-OFF LAYER; PROBES; SATELLITES; SPECTRA; THEORETICAL DATA
Descriptors DEC
BOUNDARY LAYERS; CLOSED PLASMA DEVICES; CYCLOTRON RESONANCE; DATA; FREQUENCY RANGE; GHZ RANGE; HEATING; HIGH-FREQUENCY HEATING; INFORMATION; INSTABILITY; LAYERS; NON-INDUCTIVE CURRENT DRIVE; NUMERICAL DATA; PLASMA HEATING; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES; RESONANCE; THERMONUCLEAR DEVICES; TOKAMAK DEVICES