Transport Induced by Large Scale Convective Structures in a Dipole-Confined Plasma
Abstract
Convective structures characterized by E×B motion are observed in a dipole-confined plasma. Particle transport rates are calculated from density dynamics obtained from multipoint measurements and the reconstructed electrostatic potential. The calculated transport rates determined from the large-scale dynamics and local probe measurements agree in magnitude, show intermittency, and indicate that the particle transport is dominated by large-scale convective structures.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 2010
- DOI:
- Bibcode:
- 2010PhRvL.105t5004G
- Keywords:
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- 52.35.Mw;
- 52.35.Ra;
- 52.55.Hc;
- Nonlinear phenomena: waves wave propagation and other interactions;
- Plasma turbulence;
- Stellarators torsatrons heliacs bumpy tori and other toroidal confinement devices