Structure of chaotic magnetic field lines in IR-T1 tokamak due to ergodic magnetic limiter
Source abstract
Abstract
In this paper we have studied an Ergodic Magnetic Limiter (EML) based chaotic magnetic field for transport control in the edge plasma of IR-T1 tokamak. The resonance created by the EML causes perturbation of the equilibrium field line in tokamak and as a result, the field lines are chaotic in the vicinity of the dimerized island chains. Transport barriers are formed in the chaotic field line and actually observe in tokamak with reverse magnetic shear. We used area-preserving non-twist (and twist) Poincaré maps to describe the formation of transport barriers, which are actually features of Hamiltonian systems. This transport barrier is useful in reducing radial diffusion of the field line and thus improving the plasma confinement.
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Research context
OpenAlex topics: Magnetic confinement fusion research · Quantum chaos and dynamical systems · Ionosphere and magnetosphere dynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Plasma Physics Research Center, Science and Research Branch, Islamic Azad University , Tehran 1477893855, Iran
References (28)
Show source-provided references
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