Published 1990 | Version v1
Journal article Metadata-only

X-mode broadband reflectometric density profile measurements on DIII-D

Creators

  • 1. California Univ., Los Angeles, CA (United States). Inst. of Plasma and Fusion Research

Description

Reflectometric density profiles are obtained on DIII-D which are in good agreement with Thomson profiles, but only with the use of fast sweeps. The large changes in plasma profile which occur between ohmic and H-mode operation are observed to change the plasma VSWR. The system is still under development: by adding an additional 50-75 GHz BWO and mixers, the present system will be reconfigured to act as a correlation reflectometer, while still retaining the capability to measure density profiles. These alterations are currently underway, and it is hoped to obtain preliminary data by the time of the EPS conference. (author) 7 refs., 3 figs

Additional details

Publishing Information

Journal Title
Europhysics Conference Abstracts
Journal Volume
14B
Journal Issue
PartIV
Series
Europhys. Conf. Abstr.
Journal Page Range
1596-1599
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
23024249
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
CAPITALIZED COST; DOPPLER EFFECT; EXPERIMENTAL DATA; FLUCTUATIONS; GHZ RANGE 01-100; H-MODE PLASMA CONFINEMENT; INTERFEROMETERS; JET TOKAMAK; MAGNETIC FIELDS; MIRRORS; PERFORMANCE; PLASMA DENSITY; PLASMA DIAGNOSTICS; REFLECTION; REFRACTIVE INDEX; SPATIAL DISTRIBUTION; THOMSON SCATTERING; TOKAMAK DEVICES; WAVEGUIDES
Descriptors DEC
CLOSED PLASMA DEVICES; CONFINEMENT; COST; DATA; DISTRIBUTION; FREQUENCY RANGE; GHZ RANGE; INELASTIC SCATTERING; INFORMATION; MEASURING INSTRUMENTS; NUMERICAL DATA; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; PLASMA CONFINEMENT; SCATTERING; THERMONUCLEAR DEVICES; VARIATIONS