|Title||Overview of radiative improved mode results on TEXTOR-94|
|Publication Type||Journal Article|
|Year of Publication||1999|
|Authors||R.R Weynants, A.M Messiaen, J. Ongena, B. Unterberg, G. Bonheure, P. Dumortier, R. Jaspers, R. Koch, H.R Koslowski, A. Kramer-Flecken, G. Mank, J. Rapp, M.Z Tokar, G. van Wassenhove, W. Biel, M. Brix, F. Durodie, G. Esser, K.H. Finken, G. Fuchs, B. Giesen, J. Hobirk, P. Huttemann, M. Lehnen, A. Lyssoivan, P. Mertens, A. Pospieszczyk, U. Samm, M. Sauer, B. Schweer, R. Uhlemann, G. Van Oost, P.E Vandenplas, M. Vervier, V. Philipps, G. Waidmann, G.H Wolf|
The radiative improved (RI) mode is a tokamak regime offering many attractive reactor features. In the article, the RI mode of TEXTOR-94 is shown to follow the same scaling as the linear ohmic confinement regime and is thus identified as one of the most fundamental tokamak operational regimes. The current understanding derived from experiments and modelling of the conditions necessary for sustaining the mode is reviewed, as are the mechanisms leading to L-RI mode transition. The article discusses the compatibility of high impurity seeding with the low central power density of a burning reactor, as well as RI mode properties at and beyond the Greenwald density.
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