Two-dimensional Thomson scattering system for ATF

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6092595

Kindsfather, R R; Rasmussen, D A; Murakami, M; Thomas, C E; Painter, S L; Hays, P S; Morris, R N; Tolnas, E L

A two-dimensional Thomson scattering system is being designed for the ATF torsatron experiment. This system will provide electron temperature and density measurements at fifteen points along a vertical chord with each shot from a ruby laser. By relocating the laser beam, and reconfiguring the input optics on subsequent laser shots, a two-dimensional T/sub e/ and n/sub e/ map of an ATF toroidal cross-section can be obtained. The horizontal Thomson scattering viewing port is offset by fifteen degrees toroidally from the ports passing the vertical laser beam. Translating and rotating mirrors will be used to relay light from the viewing port to the collection lens. This makes it possible to scan horizontally, view as much of the vertical laser beam as possible, and to use a fixed focal length, fixed position lens. Three sets of spectrometers optimized to three temperature ranges will be used. At the output of each spectrometer, dispersed light will be detected by an array of five, seven, or eight photomultiplier tubes depending on the temperature range of the spectrometer.

• Research Organization: Oak Ridge National Lab., TN (USA); Princeton Univ., NJ (USA). Plasma Physics Lab.
• DOE Contract Number: AC02-76CH03073; AC05-84OR21400
• OSTI ID: 6092595
• Report Number(s): CONF-860324-12; ON: DE86008492
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ATF TORSATRON
CLOSED PLASMA DEVICES
ELECTRON DENSITY
ELECTRON TEMPERATURE
INELASTIC SCATTERING
LASERS
MEASURING INSTRUMENTS
PLASMA DIAGNOSTICS
RUBY LASERS
SCATTERING
SOLID STATE LASERS
SPECTROMETERS
STELLARATORS
THERMONUCLEAR DEVICES
THOMSON SCATTERING
TORSATRON STELLARATOR