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By having an aperture in the neutral beam, it was possible to study the influence of various plasma parameters on the electron heat conductivity coefficient at TEXTOR. Experiments show a scaling with plasma current, toroidal magnetic field and Z(eff), but no indication of density dependence. Above a 400 eV threshold a strong increase was found in the transport coefficient, possibly due to isolation of the magnetic field structure. Where the electrons are subject to a free streaming rather than a diffusive process, this results in a decrease of the heat pulse propagation time.

Additional information

Authors: KRÄMER-FLECKEN A, Forschungszentrum Jülich GmbH (KFA) (DE);KOSLOWSKI H R, Forschungszentrum Jülich GmbH (KFA) (DE);KRAMER-FLECKEN A, Forschungszentrum Julich GmbH (KFA) (DE)
Bibliographic Reference: Article: ISPP-14 "Piero Caldirola" Local Transport Studies in Fusion Plasmas (1993) pp. 149-154
Record Number: 199410339 / Last updated on: 1994-11-28
Original language: en
Available languages: en