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Stochastic Filament Dynamics in Tokamaks

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If you have a question about this talk, please contact James Fergusson.

Filaments are dense collections of plasma that exit the main body of plasma in a Tokamak fusion reactor and may collide with the reactor’s walls. These are undesirable and are the result of little understood turbulence in the plasma. Recently, an analytic model was developed to study the motion of individual filaments assuming that they are affected deterministically by their initial velocity and the Tokamak’s magnetic fields. In this project, the effects of stochastic velocity and density fields to the movement of plasma filaments was then studied in the context of learning more about plasma turbulence such that future reactor designs can be made more stable.

We present a broad overview of the history and current state of fusion research, together with the world’s energy requirements to provide context, before explaining the model and the results that have been gathered thus far.

This talk is part of the Data Intensive Science Seminar Series series.

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