Technique for inferring outward displacement of magnetic flux surfaces in toroidal plasmas, using multichord interferometry

Journal Article · Wed Dec 01 04:00:00 EST 1982 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.330500· OSTI ID:6629954

Jacobson, A R

When flow can be neglected and when heat conduction parallel to the magnetic field is sufficiently strong, a confined plasma's surfaces of constant magnetic flux are also surfaces of constant plasma density. Thus, in principle, measurements of the internal density asymmetries can also determine the internal profile of flux-surface displacement along major radius caused by toroidal effects. This paper develops a simple algorithm for doing this with multichord interferometer data in toroidal plasmas having circular minor cross section and illustrates the technique with data from the ZT-40M reversed-field pinch.

• Research Organization: Los Alamos National Laboratory, Los Alamos, NM 87545
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6629954
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 53:12; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ALGORITHMS
ANNULAR SPACE
ASYMMETRY
CIRCULAR CONFIGURATION
CONFIGURATION
CONFINEMENT
DISTRIBUTION
ENERGY TRANSFER
HEAT TRANSFER
INTERFEROMETRY
MAGNETIC FLUX
MATHEMATICAL LOGIC
ORIENTATION
PINCH EFFECT
PLASMA DENSITY
PLASMA DIAGNOSTICS
REVERSE-FIELD PINCH
SPACE
SPATIAL DISTRIBUTION
THERMAL CONDUCTION
TOROIDAL CONFIGURATION
ZT-40 DEVICES