Improved tokamak dust transport simulations

Lead Research Organisation: Imperial College London
Department Name: Physics

Abstract

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Publications

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Cowley C (2020) Robust impurity detection and tracking for tokamaks. in Physical review. E

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Holgate J (2019) Spontaneous rapid rotation and breakup of metal droplets in tokamak edge plasmas in EPL (Europhysics Letters)

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Simons L (2021) Rotational motion of spherical dust in plasmas with magnetic fields in Physics of Plasmas

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Simons L (2021) Modelling dust transport in DIII-D with DTOKS-Upgrade in Plasma Physics and Controlled Fusion

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Simons L (2020) Modeling of spherical dust charging in collisionless magnetized plasmas with DiMPl in Physics of Plasmas

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Simons L. (2018) Simulating dust in magnum-PSI and JET in 45th EPS Conference on Plasma Physics, EPS 2018

Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/N509486/1 30/09/2016 30/03/2022
1858554 Studentship EP/N509486/1 30/09/2016 30/05/2020 Luke Simons
 
Description The most plausible theory for explaining camera observations of forking trajectories of dust particles inside of the Joint European Torus tokamak is that the particles are liquid droplets which become rotationally unstable. The rotational motion (which is extremely rapid with rates of up to 10kHz) is induced through interaction of the molten metals with the plasma in a strong magnetic field and in particular, the angular momentum which it collects from electron impacts.
Exploitation Route There is the potential for inducing the disruption of liquid droplets suspended in plasmas using strong magnetic fields. For magnetically confined fusion plasmas, this knowledge could be used to minimise the propagation and potential for contamination of dust.
Sectors Energy