Concept

Magnetic helicity

Related publications (25)

Stability analysis of internal ideal modes in low-shear tokamaks

The stability of internal, ideal modes in tokamaks with low magnetic shear in the plasma core is analyzed. For equilibria with large aspect ratio, a parabolic pressure profile and a flat q profile in the core, an exact solution of the ideal magnetohydrodyn ...

American Institute of Physics (AIP)2007

Ideal magnetohydrodynamic stability of the NCSX

Wilfred Anthony Cooper

The ideal magnetohydrodynamic (MHD) stability of the National Compact Stellarator Experiment (NCSX) is extensively analyzed using the most advanced three-dimensional MHD codes. It is shown that the NCSX is stable to finite-n MHD modes, including the vertic ...

2007

Self-consistent model of electron drift mode turbulence

Martin Jucker

The nonlinear dynamics of magnetic electron drift mode turbulence are outlined and the generation of large-scale magnetic structures in a non-uniform magnetized plasma by turbulent Reynolds stress is demonstrated. The loop-back of large-scale ﬂows on the m ...

Cambridge University Press2007

On the modulational stability of magnetic structures in electron drift turbulence

Martin Jucker

The generation of large-scale magnetic ﬁelds in magnetic electron drift mode turbulence is investigated. In particular, the mechanism of modulational instability caused by three-wave interactions is elucidated and the explicit increment is calculated. Also ...

American Institute of Physics (AIP)2007

Effects of global MHD instability on operational high beta-regime in LHD

Wilfred Anthony Cooper

In the Large Helical Device (LHD), the highest operational averaged beta value has been expanded from 3.2% to 4% in the last 2 years by increasing the heating capability and exploring a new magnetic configuration with a high aspect ratio. Although the magn ...

IOP Publishing Ltd2005