Published June 23, 2008 | Version v1
Journal article Metadata-only

Energy confinement and high-k turbulence on HT-7 tokamak

Creators

  • 1. Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei, Anhui 230031 (China)

Description

A CO2 collective scattering system has been developed to measure medium and high-k density fluctuation on HT-7 tokamak. Energy confinement and high-k density fluctuation are studied in ohmic discharges. The saturation of confinement was observed at approximately n-bare>2.5x1019 m-3. For kθ=23 cm-1 turbulence, it is found that fluctuation levels have great increase for n-bare>2.5x1019 m-3, and simultaneously a high frequency turbulence feature appear in the frequency spectra. For kθ=14 cm-1 turbulence, it is observed that fluctuation levels have no changes in uncertainties and the spectra are similar at all discharges in this experiment

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physleta.2008.05.021

Additional details

Identifiers

DOI
10.1016/j.physleta.2008.05.021;
PII
S0375-9601(08)00722-6;

Publishing Information

Journal Title
Physics Letters. A
Journal Volume
372
Journal Issue
26
Journal Page Range
p. 4705-4708
ISSN
0375-9601
CODEN
PYLAAG

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40046549
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
CARBON DIOXIDE; CARBON MONOXIDE; CONFINEMENT; DENSITY; FLUCTUATIONS; HT-7 TOKAMAK; SATURATION; SCATTERING; SPECTRA; TURBULENCE
Descriptors DEC
CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CLOSED PLASMA DEVICES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES; VARIATIONS

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.