Laser-fluorescence measurements of hydrogen and metal densities in the Doublet III tokamak

Conference · Sat Jan 01 04:00:00 EST 1983

OSTI ID:6422172

Muller, III, C H; Eames, D R; Burrell, K H

A general overview of the Doublet III laser-spectroscopy program is presented. This program includes tokamak diagnostic experiments and laboratory development work. Measurements of titanium and deuterium in Doublet III are presented along with recent laboratory results. Sputtering of the vacuum walls by energetic charge-exchange neutrals from the plasma center appears to be responsible for the observed Ti impurities in Doublet III. Resonance-fluorescence scattering from deuterium atoms near the plasma center has been observed using a broadband dye laser and a narrow-band detector. The feasibility of determining ion temperatures using this technique is discussed. Using the measured deuterium densities we have calculated a local-electron particle-confinement time. Laboratory measurements of carbon and oxygen densities using two-photon laser excitation and of FeI speed distributions (temperatures) using a laser double-pulse excitation technique are shown to be applicable to the tokamak conditions of Doublet III.

• Research Organization: GA Technologies, Inc., San Diego, CA (USA)
• DOE Contract Number: AT03-76ET51011
• OSTI ID: 6422172
• Report Number(s): GA-A-16853; CONF-821111-23; ON: DE83008499
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
DOUBLET REACTORS
DYE LASERS
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUORESCENCE
HYDROGEN
IMPURITIES
LASER RADIATION
LASERS
LIQUID LASERS
LUMINESCENCE
METALS
NONMETALS
PLASMA DIAGNOSTICS
RADIATIONS
RESONANCE
THERMONUCLEAR REACTORS
TITANIUM
TOKAMAK TYPE REACTORS
TRANSITION ELEMENTS