Magnetic pitch angle measurements on TEXT using laser-enhanced attenuation of a Li beam

Journal Article · Mon Oct 01 04:00:00 EDT 1990 · Review of Scientific Instruments; (USA)

DOI:https://doi.org/10.1063/1.1141779· OSTI ID:6309386

West, W P; McChesney, J; Thomas, M K; Yang, X Z

The polarization of the {pi} component of the Zeeman split Li2{ital P}--2{ital S} transition allows a direct spectroscopic measurement of the local magnetic pitch angle. Li atoms are injected radially into TEXT as a 95 keV beam and the intensity of the transmitted beam is detected. A polarization-modulated, cavity-dumped dye laser, tuned into resonance with the {pi} line, is injected collinearly with the beam. Laser excitation of the beam results in an enhanced beam attenuation. Time-resolved detection of the transmitted Li beam allows determination of the local magnetic pitch angle. Details of the system and results of recent measurements will be discussed.

• DOE Contract Number: AC03-89ER53277
• OSTI ID: 6309386
• Journal Information: Review of Scientific Instruments; (USA), Journal Name: Review of Scientific Instruments; (USA) Vol. 61:10; ISSN RSINA; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ALKALI METALS
ATOMIC BEAMS
BEAM-PLASMA SYSTEMS
BEAMS
CLOSED PLASMA DEVICES
ELEMENTS
LITHIUM
MAGNETIC FIELDS
METALS
PLASMA DIAGNOSTICS
POLARIZATION
TEXT DEVICES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
ZEEMAN EFFECT