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Calculation of Ion Orbits in the Divertor/Dipole Regions of the GAMMA10 A-Divertor

Isao KATANUMA, Shun MASAKI, Shuhei SATO, Kazuto SEKIYA, Makoto ICHIMURA and Kiyoshi IMAI

Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan

(Received 14 December 2011 / Accepted 17 May 2012 / Published 26 July 2012)

Abstract

The numerical code for calculation of ion orbits was developed in order to calculate the ion orbits in the divertor and dipole regions of the GAMMA10 A-divertor. The flux coordinates (ψ, θ, χ) have been adopted, where the magnetic field B is represented by B = ∇ψ×∇θ = ∇χ. It is found that ion orbits behave chaotic around the magnetic null.

Copyright (c) 2012 The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

divertor, particle orbits, magnetic null, x-point

DOI: 10.1585/pfr.7.2403093

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References

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This paper may be cited as follows:

Isao KATANUMA, Shun MASAKI, Shuhei SATO, Kazuto SEKIYA, Makoto ICHIMURA and Kiyoshi IMAI, Plasma Fusion Res. 7, 2403093 (2012).