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Return To: Session EX1 - Performance, Improved Modes, Alphas (Tuesday,
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R. R. Weynants 1, A. M. Messiaen 1,
J. Ongena 1* , B. Unterberg 2, G. Bonheure 1,
P. Dumortier 1, R. Jaspers 3, R. Koch 1,
H. R. Koslowski 2,
A. Krämer-Flecken 2, G. Mank 2,
J. Rapp 2, M. Z. Tokar 2, G. van
Wassenhove 1, W. Biel 2, M. Brix 2,
F. Durodie 1, G. Esser 2, K. H. Finken 2,
G. Fuchs 2, B. Giesen 2, J. Hobirk 2,
P. Hüttemann 2,
M. Lehnen ,A. Lyssoivan 1, Ph. Mertens 2,
A. Pospieszczyk 2, U. Samm 2, M. Sauer 2,
B. Schweer 2, R. Uhlemann 2,
P. E. Vandenplas 1, G. van Oost 1,
M. Vervier 1, V. Philipps 2, G. Waidmann 2,
G. H. Wolf 2
Trilateral Euregio Cluster:
1 Laboratoire de Physique des Plasmas - Laboratorium voor Plasmafysica,
Association ``EURATOM-Belgian State'', Ecole Royale Militaire -
B-1000 Brussels - Koninklijke Militaire School
2 Institut für Plasmaphysik, Forschungszentrum Jülich GmbH, EURATOM
Association , D-52425 Jülich, FRG
3 FOM Instituut voor Plasmafysica Rijnhuizen Associatie ``FOM-EURATOM'',
Nieuwegein, The Netherlands
* Researcher at FWO Vlaanderen
Abstract
The radiative improved mode is a tokamak regime offering many
attractive reactor features. In this paper the RI-mode of TEXTOR -94 is shown
to follow the same scaling as the Linear Ohmic Confinement regime, thus
identifying it as one of the most fundamental tokamak operational regimes. The
current understanding derived from experiments and modeling of the conditions
necessary for sustaining the mode is reviewed as are the mechanisms leading to
L- to RI- mode transition. The compatibility of high impurity seeding with the
low central power density of a burning reactor is discussed as well as RI-mode
properties at and beyond the Greenwald density .
IAEA 1999