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Abstract

Reflectometer measurements of electron density perturbations produced by modulation of the gas feed are used to measure the electron source distribution and benchmark Monte-Carlo neutral transport calculations. An analysis of the temporal evolution of the electron flux, calculated using the measured source, yields the diffusion coefficient, D(e), and the pinch velocity, V(p). The radial profiles and parametric dependencies of these particle transport coefficients are studied in ohmic and L-mode regimes.

Additional information

Authors: O'ROURKE J, JET Joint Undertaking, Abingdon, Oxon. (GB);GOWERS C, JET Joint Undertaking, Abingdon, Oxon. (GB);MORGAN P D, JET Joint Undertaking, Abingdon, Oxon. (GB);SIMONINI R, JET Joint Undertaking, Abingdon, Oxon. (GB);SIPS A C C, JET Joint Undertaking, Abingdon, Oxon. (GB);KRAMER G J, FOM Instituut voor Plasmafysica, Rijnhuisen, Nieuwegein (NL)
Bibliographic Reference: Report: JET-P(92)86 EN (1992) 13 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199310124 / Last updated on: 1994-11-29
Category: PUBLICATION
Original language: en
Available languages: en
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