3D Fokker-Planck modeling of axisymmetric collisional losses of fusion products in TFTR | Zendy

V.Ya. Goloborod'ko | Zendy; S. N. Reznik | Zendy; V.A. Yavorskij | Zendy; S. J. Zweben | Zendy

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3D Fokker-Planck modeling of axisymmetric collisional losses of fusion products in TFTR

Author(s) -

V.Ya. Goloborod'ko,

S. N. Reznik,

V.A. Yavorskij,

S. J. Zweben

Publication year - 1995

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/206582

Subject(s) - fusion , physics , rotational symmetry , fokker–planck equation , kinetic energy , anisotropy , nuclear fusion , plasma , atomic physics , computational physics , mechanics , classical mechanics , nuclear physics , optics , quantum mechanics , differential equation , philosophy , linguistics

Results of a 3D (in constants of motion space) Fokker-Planck simulation of collisional losses of fusion products in axisymmetric DT and DD discharges on TFTR are presented. The distributions of escaped ions over poloidal angle, pitch angle, and their energy spectra are obtained. Axisymmetric collisional losses of fusion products are found to be less than (2--5)%. The distribution of confined fusion products is shown to be strongly anisotropic and nonuniform in the radial coordinate mainly for slowed-down fusion products with small longitudinal energy. Comparison of these results of modeling and experimental data is done

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