Particle diffusion in a system of magnetic islands in tokamaks in fully Hamiltonian approach

Krlín, L.; Cahyna, P.

doi:10.1007/s10582-006-0186-3

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2013

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“…To avoid the effect of drifts in curvilinear field lines in toroidal representation, and the generation of an additional sort of chaos resulting from such geometry, we limit our procedure to a cylindrical system with periodic boundary conditions. The final form of the Hamiltonian is (using [7,8])…”

Section: Modelmentioning

confidence: 99%

Particle Dynamics in the RMP Ergodic Layer under the Influence of Edge Plasma Turbulence

Kurian¹,

Krlín²,

Cahyna³

et al. 2013

Acta Polytech

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The complex processes in edge tokamak plasma are affected (among others) both by resonant magnetic perturbation (RMP) and by plasma turbulence. RMP is nowadays considered to be a candidate for the mitigation of the edge-localized modes (ELMs). The effect of plasma turbulence inthe edge region has not been studied yet. Since both RMP and plasma turbulence should influence plasma dynamics, studies of their simultaneous effect have potential practical implications. Using a simplified model of the turbulence and single-particle simulations, we discovered that its effect at realistic amplitudes changes the ion dynamics significantly. We expect that the turbulence has a similar effect on electrons, thus potentially influencing the ELM mitigation mechanism.

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Section: Modelmentioning

confidence: 99%

Particle Dynamics in the RMP Ergodic Layer under the Influence of Edge Plasma Turbulence

Kurian¹,

Krlín²,

Cahyna³

et al. 2013

Acta Polytech

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show abstract

Particle diffusion in a system of magnetic islands in tokamaks in fully Hamiltonian approach

Abstract: Particle dynamics in a system of magnetic islands is studied. It is shown that fully Hamiltonian description of particle dynamics yields results different from those obtained in field lines description.PACS : 52.65.Cc, 52.25.Gj

Cited by 1 publication

References 5 publications

Particle Dynamics in the RMP Ergodic Layer under the Influence of Edge Plasma Turbulence

Particle Dynamics in the RMP Ergodic Layer under the Influence of Edge Plasma Turbulence

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