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(EX/P5-13) Overview of TEXTOR Results

F.C. Schuller1), S.S. Abdullaev2), C.J. Barth1), W. Biel2), A.J.H. Donne1), P. Dumortier3), D. van Eester3), K.H. Finken2), J.C. van Gorkom1), M. von Hellerman1), J.A. Hoekzema2), G.M.D. Hogeweij1), M. Jakubowski2), R.J.E. Jaspers1), D. Kalupin2), M. Kobayashi2), H.R. Koslowski2), A. Kraemer-Flecken2), M. Lehnen2), N.J. Lopes Cardozo1), H.J. van der Meiden1), A. Messiaen3), T. Oyevaar1), V. Philipps2), A. Pospieszczyk2), D. Reiser2), D. Reiter2), M.Z. Tokar2), V.S. Udintsev1), B. Unterberg2), G. van Wassenhove3), E. Westerhof1), TEXTOR-Team
1) Trilateral Euregio Cluster, FOM Institute of Plasma Physics, Nieuwegein, Netherlands
2) Trilateral Euregio Cluster, Institut für Plasmaphysik, Forschingszentrum Juelich, Germany
3) Trilateral Euregio Cluster, Laboratoire de Physique des Plasmas - Laboratorium voor Plasmafysica, ERM-KMS, Brussels, Belgium

Abstract.  Since March 2001 TEXTOR undergoes a rebuild to install the Dynamic Ergodic Divertor (DED). TEXTOR will come into operation in August. During the campaigns before the shutdown new results were obtained on: -Internal electron transport barriers found in NCS- but also in normal L-mode plasmas related to specific q-values; -Further improvements of the RI-mode with central ECRH and extension towards trans-Greenwald densities; -Magnetic islands giving enhancement/reduction of turbulent fluctuations and transport around X-/O-points respectively; -Fast ion dynamics during sawtooth crashes measured with Collective Thomson Scattering; -Impurity transport analysis gave diffusion coefficients and inward convection values to be compared with gyro-Bohm/ITG-model predictions; -Erosion/deposition of carbon, fuel retention and hydrogen recycling near limiters.

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IAEA 2003