Measurement of the poloidal magnetic field in the PBX-M tokamak using the motional Stark effect

Technical Report · Mon May 01 00:00:00 EDT 1989

DOI:https://doi.org/10.2172/6135803· OSTI ID:6135803

Levinton, F M; Fonck, R J; Gammel, G M; Kaita, R; Kugel, H W; Powell, E T; Roberts, D W

Polarimetry measurements of the Doppler-shifted H/sub ..cap alpha../ emission from a hydrogen neutral beam on the PBX-M tokamak have been employed in a novel technique for obtaining q(0) and poloidal magnetic field profiles. The electric field from the beam particle motion across the magnetic field (E = V/sub beam/ /times/ B) causes a wavelength splitting of several angstroms, and polarization of the emitted radiation (Stark effect). Viewed transverse to the fields, the emission is linearly polarized with the angle of polarization related to the direction of the magnetic field. 14 refs., 5 figs.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 6135803
• Report Number(s): PPPL-2612; ON: DE89012830
• 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
PBX DEVICES
POLARIMETRY
POLOIDAL FIELD DIVERTORS
MEASURING METHODS
CURRENT DENSITY
DOPPLER EFFECT
ELECTRIC FIELDS
ELECTRON DENSITY
FREQUENCY DEPENDENCE
HYDROGEN
MAGNETIC FIELDS
PLASMA DIAGNOSTICS
STARK EFFECT
CLOSED PLASMA DEVICES
DIVERTORS
ELEMENTS
NONMETALS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
700102* - Fusion Energy- Plasma Research- Diagnostics