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Hutter, T.; Platz, P.; Romannikov, A.N.
Association Euratom-CEA, CEA/Cadarache, Dept. de Recherches sur la Fusion Controlee (DRFC), 13 - Saint-Paul-lez-Durance (France)
EURATOM-CEA association contributions to the 26. EPS conference on controlled fusion and plasma physics, Maastricht1999
Association Euratom-CEA, CEA/Cadarache, Dept. de Recherches sur la Fusion Controlee (DRFC), 13 - Saint-Paul-lez-Durance (France)
EURATOM-CEA association contributions to the 26. EPS conference on controlled fusion and plasma physics, Maastricht1999
AbstractAbstract
[en] The first measurements of near-axis toroidal rotation of the main ions are presented. The measurements are based on the analysis of the energy spectra of the CX neutrals as observed in near parallel and near perpendicular directions (with respect to Ip). Taking advantage of a current-inversion experiment, ohmic plasma have been studied. The toroidal velocity of the main ions is always opposite to the plasma current (Vt = - 40± 20 km/s in the presented experiment). The magnitude of counter rotation is an issue. The core radial electric field is estimated at 10 kV/m (negative field) for a central electron temperature around 2 keV. The possible source of the strong negative electric field could be related to ripple trapped ions losses. (authors)
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Association Euratom-CEA, CEA/Cadarache, Dept. de Recherches sur la Fusion Controlee (DRFC), 13 - Saint-Paul-lez-Durance (France); 162 p; Oct 1999; p. 113-116; 26. EPS conference on controlled fusion and plasma physics; Maastricht (Netherlands); 14-18 Jun 1999; 8 refs.
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