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Particle transport coefficients are estimated by modelling the time evolution of electron density as determined from the ASDEX Upgrade DCN interferometer in a variety of discharges. These include L-H transitions for ohmic, ICRF, and beam heated H-modes, density ramps, and pellet injection. The density evolution can generally be modelled satisfactorily. This paper discusses the model and analysis technique, gives results for a number of L-H transitions, shows ohmic density ramps and discusses a pellet shot.

Additional information

Authors: GENTLE K W, University of Texas, Austin (US);GEHRE O ET AL., Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Report: IPP 1/282 EN (1994) 36 pp.
Availability: Available from Max-Planck-Institut für Plasmaphysik, 8046 Garching bei München (DE)
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