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The Rutherford scattering diagnostic at TEXTOR was used to determine the central toroidal rotation speed of the hydrogenic bulk ions in the plasma. During neutral beam injection, speeds of the order of 1.0 E5 m/s were found. With balanced injection no rotation was observed. A first comparison with charge exchange recombination spectroscopy showed, within the accuracy of the methods, no difference in the derived speeds, in agreement with neoclassical theory. The momentum confinement time of the central hydrogenic ions was found to decrease with the neutral beam power approximately as the inverse square root of P(NBI).

Additional information

Authors: TAMMEN H F, FOM-Instituut voor Plasmafysica Rijnhuizen, Nieuwegein (NL);DONNÉ A J H, FOM-Instituut voor Plasmafysica Rijnhuizen, Nieuwegein (NL);OYEVAAR T, FOM-Instituut voor Plasmafysica Rijnhuizen, Nieuwegein (NL);EURINGER H, Forschungszentrum Jülich GmbH (KFA) (DE)
Bibliographic Reference: Article: Physical Review Letters, Vol. 72 (1994) No. 3, pp. 356-359
Record Number: 199410218 / Last updated on: 1994-11-28
Original language: en
Available languages: en
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