Work

Outside and inside a magnetic island: different perspectives to describe the same observables

Year: 2024

Type: article

Abstract: We compare three different approaches to describe a magnetic island in a generic toroidal plasma: (i) perturbative, from the perspective of the equilibrium magnetic field and the related action in a variational principle formulation; (ii) again perturbative, based on the integrability of a system with a single resonant mode and the application of a canonical transformation onto a new island equilibrium system; and (iii) non-perturbative, making use of a full geometric description of the island considered as a stand-alone plasma domain. For the three approaches, we characterize some observables and discuss the respective limits.

Source: Journal of Plasma Physics

DOI: 10.1017/s0022377824000941

Authors: B. Momo, I. Predebon

Institutions: National Agency for New Technologies, Energy and Sustainable Economic Development, University of Padua, Istituto Nazionale di Fisica Nucleare, Institute for the Science and Technology of Plasmas

Language: English

Topic: Magnetic confinement fusion research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,450

OpenAlex ID: W4405379432