Plasma diagnosis by dye laser intracavity absorption: Final report for period January 1, 1982-May 31, 1986

Technical Report · Thu May 01 00:00:00 EDT 1986

OSTI ID:6724037

Brink, G O

Dye laser intracavity absorption (ICA) has been studied as a potential diagnostic for plasma or neutral beam systems. For magnetic field measurements it is necessary to make Zeeman effect measurements on the resonance transition of atomic lithium on a millisecond time scale, or to make motional Stark Effect measurements on an injected fast atomic beam of hydrogen. To do this it may be necessary to sweep the dye laser in wavelength at a rapid rate so that the absorber can be sampled many times during the measurement. We have examined both of these possibilities during this contract. A rather detailed absorption spectrum of molecular hydrogen and deuterium arising in the 2c /sup 3/Piu and other electronic states has been obtained and analyzed. This has provided new information on the types of molecular species that may be detected in a plasma by ICA, and may provide a basis for the application of ICA for the diagnosis of the edge plasma in a tokamak or in the end regions of a mirror machine.

• Research Organization: State Univ. of New York, Buffalo (USA)
• DOE Contract Number: AC02-81ER53122
• OSTI ID: 6724037
• Report Number(s): DOE/ER/53122-3; ON: DE87006407
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA DIAGNOSTICS
DYE LASERS
LITHIUM
MAGNETIC FIELD CONFIGURATIONS
NEUTRAL BEAM SOURCES
PLASMA SCRAPE-OFF LAYER
STARK EFFECT
ZEEMAN EFFECT
ALKALI METALS
BOUNDARY LAYERS
ELEMENTS
LASERS
LAYERS
LIQUID LASERS
METALS
700102* - Fusion Energy- Plasma Research- Diagnostics