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Abstract

The electron temperature, pressure and density profiles from an extreme variety of shaped ohrnically heated sawtoothing plasmas in TCV (Tokamak a Configuration Variable, Pr<1.5T, Ro=O.88m, a<O.25m) are compared to model predictions drawing from two bodies of theory. One of these is based on the assumption of stationary magnetic entropy and predicts stiff toroidal current, and consequently ohmically relaxed electron temperature profiles. The second theory is based on the assumption of approximate conservation of the first and second adiabatic invariants during particle transport and predicts density profiles closely related to the safety factor. The robustness of these predictions in ohmically heated plasmas is confim1ed by systematic observations in TCV

Additional information

Authors: MINARDI E, Istituto di Fisica del Plasma P. Caldirola, Associazione EURATOM-ENEA-CNR, Milano (IT);WEISEN H, Istituto di Fisica del Plasma P. Caldirola, Associazione EURATOM-ENEA-CNR, Milano (IT)
Bibliographic Reference: An article published in: Europhysics Letters, 56 (4), (2001), pp.542-548
Record Number: 200013788 / Last updated on: 2001-10-03
Category: PUBLICATION
Original language: en
Available languages: en