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

Journal Article · Fri Apr 01 04:00:00 EST 1983 · J. Vac. Sci. Technol., A; (United States)

DOI:https://doi.org/10.1116/1.572003· OSTI ID:5769662

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 Fe i 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, California 92138
• OSTI ID: 5769662
• Journal Information: J. Vac. Sci. Technol., A; (United States), Journal Name: J. Vac. Sci. Technol., A; (United States) Vol. 1:2; ISSN JVTAD
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
CARBON
CLOSED PLASMA DEVICES
CONFINEMENT TIME
DEUTERIUM
DOUBLET REACTORS
DYE LASERS
ELECTRON DENSITY
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
EMISSION SPECTROSCOPY
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
FERMIONS
FLUORESCENCE
FLUORESCENCE SPECTROSCOPY
HYDROGEN
HYDROGEN ISOTOPES
IMPURITIES
IRON
ISOTOPES
LASER SPECTROSCOPY
LASERS
LEPTONS
LIGHT NUCLEI
LIQUID LASERS
LUMINESCENCE
METALS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
OXYGEN
PLASMA DIAGNOSTICS
RESONANCE
SPECTROSCOPY
SPUTTERING
STABLE ISOTOPES
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TITANIUM
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS
TRANSITION ELEMENTS
WALLS