Time-dependent measurements of metal impurity densities in a tokamak discharge by use of laser-induced fluorescence

Journal Article · Mon Aug 03 04:00:00 EDT 1981 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.47.330· OSTI ID:5860102

Miller, III, C H; Burrell, K H

Measured FeI densities in the edge region of the impurity study experiment (ISX-B) tokamak in ohmic and neutral-beam-heated discharges are consistent with densities calculated, if one assumes that sputtering of the stainless steel walls by charge-exchange neutrals is the dominant production mechanism. FeI and TiI densities observed during plasma shift experiments indicate that the limiters play only a minor role in impurity production in D/sub 2/ discharges. This also suggests that most metals are sputtered from the walls.

• Research Organization: General Atomic Company, San Diego, California 92138
• OSTI ID: 5860102
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 47:5; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ALLOYS
CHARGE EXCHANGE
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
DATA
DENSITY
ELECTROMAGNETIC RADIATION
ELEMENTS
EXPERIMENTAL DATA
FLUORESCENCE
IMPURITIES
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
ISX TOKAMAK
LASER RADIATION
LUMINESCENCE
METALS
NUMERICAL DATA
PHYSICAL PROPERTIES
PLASMA DIAGNOSTICS
RADIATIONS
SPUTTERING
STAINLESS STEELS
STEELS
THERMONUCLEAR REACTORS
TIME DEPENDENCE
TOKAMAK TYPE REACTORS
WALLS