Control of Transport-barrier relaxations by Resonant Magnetic Perturbations

Details Control of Transport-barrier relaxations by Resonant Magnetic Perturbations Control of Transport-barrier relaxations by Resonant Magnetic Perturbations

2009-02-16

arxiv.org/abs/0902.2710v1

Phys. Rev. Lett. 102, 045006 (2009)

Physics

Plasma Physics

4 pages

Scientific paper

10.1103/PhysRevLett.102.045006

Transport-barrier relaxation oscillations in the presence of resonant magnetic perturbations are investigated using three-dimensional global fluid turbulence simulations from first principles at the edge of a tokamak. It is shown that resonant magnetic perturbations have a stabilizing effect on these relaxation oscillations and that this effect is due mainly to a modification of the pressure profile linked to the presence of both residual residual magnetic island chains and a stochastic layer.

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