Electromagnetic Transport From Microtearing Mode Turbulence

Technical Report · Wed Mar 23 00:00:00 EDT 2011

DOI:https://doi.org/10.2172/1010969· OSTI ID:1010969

Guttenfelder, W; Kaye, S M; Nevins, W M; Wang, E; Bell, R E; Hammett, G W; LeBlanc, B P; Mikkelsen, D R

This Letter presents non-linear gyrokinetic simulations of microtearing mode turbulence. The simulations include collisional and electromagnetic effects and use experimental parameters from a high beta discharge in the National Spherical Torus Experiment (NSTX). The predicted electron thermal transport is comparable to that given by experimental analysis, and it is dominated by the electromagnetic contribution of electrons free streaming along the resulting stochastic magnetic field line trajectories. Experimental values of flow shear can significantly reduce the predicted transport.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-ACO2-09CH11466
• OSTI ID: 1010969
• Report Number(s): PPPL-4609; TRN: US1102429
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRONS
MAGNETIC FIELDS
SHEAR
TRAJECTORIES
TRANSPORT
TURBULENCE
Tokamaks
Turbulence
Gyrokinetic Simulations