Development and application of multichannel collective scattering systems

Journal Article · Wed May 01 04:00:00 EDT 1985 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1138267· OSTI ID:5545400

Park, H; Brower, D L; Peebles, W A; Luhmann, Jr, N C; Savage, Jr, R L; Yu, C X

The numerous applications of cw collective Thomson scattering in fusion plasmas are greatly enhanced by the addition of a multichannel capability. This permits the determination of the dispersive properties (..omega.. vs k) of waves on a single tokamak discharge. This paper describes the development, calibration, and application of such systems in the far-infrared spectral region. The measurement of the wave dispersion of externally excited ion Bernstein waves leads to the determination of ion temperature in a tokamak plasma. In addition, the study of naturally occurring microturbulence has produced a series of unique observations which has both motivated theoretical effort and clarified the role of density fluctuations in anomalous transport.

• Research Organization: University of California, Los Angeles, California 90024
• OSTI ID: 5545400
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 56:5; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
CALIBRATION
CLOSED PLASMA DEVICES
DESIGN
DISPERSION RELATIONS
ELECTROMAGNETIC RADIATION
FABRICATION
FAR INFRARED RADIATION
INELASTIC SCATTERING
INFRARED RADIATION
INFRARED SPECTROMETERS
LASER RADIATION
MEASURING INSTRUMENTS
PLASMA DENSITY
PLASMA DIAGNOSTICS
PLASMA WAVES
RADIATIONS
SCATTERING
SPECTROMETERS
THERMONUCLEAR DEVICES
THOMSON SCATTERING
TOKAMAK DEVICES
TURBULENCE