[Zurück]

G. Birkenmeier, M. Cavedon, G. Conway, P. Manz, G. Fuchert, F. Laggner, T. Happel, A. Medvedeva, V. Nikolaeva, D. Prisiazhniuk, L. Shao, M. Maraschek, T. Pütterich, F. Ryter, M. Willensdorfer, E. Wolfrum, U. Stroth, H. Zohm, . ASDEX Upgrade Team:
"Characterisation of Pulsations close to The L-H Transition in AUG";
in: "Proc. 42nd EPS Conference on Plasma Physics, Europhys. Conf. Abstracts", Vol. 39E; EPS Conference on Plasma Physics, 2015, ISBN: 2-914771-98-3, S. 11251 - 11254.

In fusion plasmas, a regular pulsation of the perpendicular flow velocity u? and the density
fluctuations ^~ n can occur at the transition from low to high confinement regimes (L-H transition).
These pulsations, sometimes referred to as limit-cycle oscillations [1], I-phase [2] or dithering
cycles [3], have frequencies in the low kilohertz range and are associated with an improved
confinement with respect to the L-mode.