Dye laser fluorescence spectroscopy on the Doublet III tokamak

Conference · Sat May 01 04:00:00 EDT 1982

OSTI ID:5184285

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

Measurements of edge-region TiI impurity densities and central-region deuterium (n=2) densities have been obtained in the Doublet III tokamak using laser induced fluorescence spectroscopy. TiI densities range from 10/sup 12/ to 10/sup 13/ m/sup -3/ in ohmically heated D/sub 2/ discharges and a factor of 2 to 5 times less in H/sub 2/ discharges. Edge region TiI equilibration times following neutral-beam injection are in good agreement with central region ion confinement times suggesting that energetic charge-exchange neutrals from the plasma center are responsible for TiI impurities. Resonance fluorescence scattering from deuterium atoms in the plasma center has been observed using a broadband (8 nm) dye laser source and a narrow band detector to investigate the feasibility of determining ion temperatures.

• Research Organization: General Atomic Co., San Diego, CA (USA); Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AT03-76ET51011
• OSTI ID: 5184285
• Report Number(s): GA-A-16736; CONF-820545-16; ON: DE82017575
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ATOMS
CHARGE EXCHANGE
CHARGED PARTICLES
DOUBLET REACTORS
DYE LASERS
ELECTROMAGNETIC RADIATION
FLUORESCENCE
ION TEMPERATURE
IONS
LASER RADIATION
LASERS
LIQUID LASERS
LUMINESCENCE
PLASMA DIAGNOSTICS
RADIATIONS
RESONANCE
SPECTROSCOPY
THERMONUCLEAR REACTORS
TITANIUM IONS
TOKAMAK TYPE REACTORS