Interaction of particles with systems of magnetic islands and edge turbulence in tokamaks in fully Hamiltonian approach

0097102 - ÚFP 2008 RIV PL eng C - Conference Paper (international conference)
Cahyna, Pavel - Krlín, Ladislav - Pánek, Radomír - Kurian, M.
Interaction of particles with systems of magnetic islands and edge turbulence in tokamaks in fully Hamiltonian approach.
[Interakce částic se systémy magnetických ostrovů a okrajovou turbulencí v plně hamiltonovsém přístupu.]
34th European Physical Society Conference on Plasma Physics Contributed Papers. Varšava: EPS, 2007 - (Gąsior, P.; Wołowski, J.), P4.044-P4.044. Europhysics conference abstracts, 31F. ISBN 978-83-926290-0-9.
[EPS Conference on Plasma Physics and Controlled Fusion/34th./. Varšava (PL), 02.07.2007-06.07.2007]
R&D Projects: GA AV ČR IAA100430502
Institutional research plan: CEZ:AV0Z20430508
Keywords : electrostatic turbulence * magnetic islands * deterministic chaos
Subject RIV: BL - Plasma and Gas Discharge Physics
http://www.eps2007.ifpilm.waw.pl/pdf/P4_044.pdf

Dynamics of particles influenced by magnetic islands and electrostatic turbulence has been studied. We have found that introducing toroidal effects brings an additional form of stochasticity of particles, which one cannot obtain from the cylindrical description. The effect appears even in the case of one set of islands at one rational surface and contributes to the diffusivity of particles. First estimates show that the effect of potential turbulent perturbations strongly influences the islands effect and therefore must be included in the global description.

Byla studována dynamika částic ovlivněná magnetickými ostrovy a elektrostatickou turbulencí. Bylo zjištěno že toroidální efekkty přinášejí další druh stochasticity částic, který se nevyskytuje v cylindrickém modelu. Elektrostatická turbulence silně ovlivňuje účinek ostrovů.
Permanent Link: http://hdl.handle.net/11104/0156321