Collisionless high energy particle losses in optimized stellarators calculated in real-space coordinates

Journal Article · Sun Jun 15 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4876740· OSTI ID:22304272

Nemov, V. V.; Kasilov, S. V. ^[1]; Kernbichler, W. ^[2]

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1. Institute of Plasma Physics, National Science Center Kharkov Institute of Physics and Technology, Akademicheskaya str. 1, 61108 Kharkov (Ukraine)
2. Institut für Theoretische Physik—Computational Physics, Technische Universität Graz, Fusion@ÖAW, Petersgasse 16, A-8010 Graz (Austria)

An approach for the direct computation of collisionless losses of high energy charged particles is developed for stellarator magnetic fields given in real space coordinates. With this approach, the corresponding computations can be performed for magnetic fields with three-dimensional inhomogeneities in the presence of stochastic regions as well as magnetic islands. A code, which is based on this approach, is applied to various stellarator configurations. It is found that the life time of fast particles obtained in real-space coordinates can be smaller than that obtained in magnetic coordinates.

• OSTI ID: 22304272
• Journal Information: Physics of Plasmas, Vol. 21, Issue 6; Other Information: (c) 2014 EURATOM; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CALCULATION METHODS
CHARGED PARTICLES
MAGNETIC FIELDS
MAGNETIC ISLANDS
STELLARATORS
STOCHASTIC PROCESSES