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Abstract

The He-like spectra of iron, chromium and other elements are measured routinely at the tokamak TORE SUPRA. The aim of this work is the determination of the diffusion coefficients and the density of the neutrals in the plasma core using the He-like spectra of iron. The approach consists of two parts. In the first, theoretical part, the one-dimensional impurity transport code is applied to calculate the radial profiles of H-, He- and Li-like ions. In the second part we reconstruct the synthetic spectrum of He-like iron on the basis of calculated radial profiles and atomic processes. Finally, the density of the ionized stages in the core is determined by leastsquare fitting of the synthetic to the measured He-like spectrum.

Additional information

Authors: MARCHUK O, Institut für Plasmaphysik, Forschungszentrum Jülich, Association EURATOM/FZJ, Trilateral Euregio Cluster, Jülich (DE);BERTSCHINGER G, Institut für Plasmaphysik, Forschungszentrum Jülich, Association EURATOM/FZJ, Trilateral Euregio Cluster, Jülich (DE);FENZI-BONIZEC C, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);SCHUNKE B, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);MATTIOLI M, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);XWHITEFORD M, Department of Physics, University of Strathclyde, Glasgow (GB);BADNELL N R, Department of Physics, University of Strathclyde, Glasgow (GB)
Bibliographic Reference: An oral paper given at: 32nd EPS Conference on Controlled Fusion and Plasma Physics Organised by: The Laboratorio Nacional de Fusión, Madrid (ES) Held at: Congress Palace of Tarragona, Taragona (ES)
Availability: Available from Association EURATOM-CEA, Département de Recherches sur la Fusion Contrôlée, CEA Cadarache, F-13108 St Paul-Lez-Durance, France Tel: (+33) 4 42 25 70 01; Fax: (+33) 4 42 25 64 21 E-mail: dirdrfc@drfc.cad.cea.fr
Record Number: 200518358 / Last updated on: 2005-10-04
Category: PUBLICATION
Original language: en
Available languages: en