Observation of z-dependent impurity accumulation in the PBX tokamak

Journal Article · Mon Jan 12 00:00:00 EST 1987 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.58.116· OSTI ID:6748818

Ida, K; Fonck, R J; Sesnic, S; Hulse, R A; LeBlanc, B

Charge-dependent convective impurity transport is observed in the central core of PBX H-mode discharges by measurement of radial profiles for both low- and high-Z intrinsic impurities in the presence of strong sawtooth activity. The time-evolving Z/sub eff/ profile and central metallic densities are modeled to yield a diffuison coefficient and a Z-dependent inward convective pinch which are in general agreement with estimates of neoclassical transport in the central plasma region.

• Research Organization: Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08544
• OSTI ID: 6748818
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 58:2; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
CLOSED PLASMA DEVICES
DATA
DIFFUSION
ELECTRIC CHARGES
EXPERIMENTAL DATA
IMPURITIES
INELASTIC SCATTERING
INFORMATION
MATHEMATICAL MODELS
NUMERICAL DATA
PBX DEVICES
PLASMA
PLASMA DIAGNOSTICS
RECOMBINATION
SCATTERING
THERMONUCLEAR DEVICES
THOMSON SCATTERING
TOKAMAK DEVICES