TY - JOUR
T1 - Effect of the dynamic ergodic divertor in the TEXTOR tokamak on MHD stability, plasma rotation and transport
JF - Nuclear Fusion
Y1 - 2005
A1 - R C Wolf
A1 - Biel, W.
A1 - de Bock, M. F. M.
A1 - Finken, K.H.
A1 - Gunter, S.
A1 - Hogeweij, G. M. D.
A1 - Jachmich, S.
A1 - Jakubowski, M. W.
A1 - Jaspers, R. J. E.
A1 - Kramer-Flecken, A.
A1 - Koslowski, H. R.
A1 - Lehnen, M.
A1 - Liang, Y.
A1 - Unterberg, B.
A1 - Varshney, S. K.
A1 - von Hellermann, M.
A1 - Yu, Q.
A1 - Zimmermann, O.
A1 - Abdullaev, S. S.
A1 - Donne, A. J. H.
A1 - Samm, U.
A1 - Schweer, B.
A1 - Tokar, M.
A1 - Westerhof, E.
KW - DIII-D
KW - JET
KW - MAGNETIC PERTURBATIONS
KW - NEOCLASSICAL TEARING MODES
KW - OPERATION
KW - PENETRATION
AB - With the dynamic ergodic divertor in TEXTOR fundamental effects of the coupling of external magnetic field perturbations to the confined plasma have been studied. The non-linear coupling between external (m/n = 12/4) and internal modes (m/n = 3/1) has been investigated. The critical perturbation field (m/n = 3/1) for the excitation of an m/n = 2/1 tearing mode depends not only on the magnitude but also on the direction of the toroidal angular momentum input by neutral beam injection (NBI). Below the excitation threshold of this mode a toroidal spin-up of the plasma has been observed, which only depends on the strength of the perturbation field. It is independent of both the rotation direction of the external perturbation field and the toroidal angular momentum supplied by the NBI.
VL - 45
SN - 0029-5515
UR - ://000234452300029
N1 - ISI Document Delivery No.: 000HQ
U1 - Fusion Physics
U2 - Instrumentation development
U5 - 9640212972cb05453d2e3123751db721
ER -