Neoclassical Diffusion of Heavy Impurities in a Rotating Tokamak Plasma

K. L. Wong; C. Z. Cheng

doi:10.1103/PhysRevLett.59.2643

Neoclassical Diffusion of Heavy Impurities in a Rotating Tokamak Plasma

K. L. Wong, C. Z. Cheng

Institute of Space and Plasma Sciences

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Particle orbits in a rotating tokamak plasma are calculated from the equation of motion in the frame that rotates with the plasma. It is found that heavy particles in a rotating plasma can drift away from magnetic surfaces significantly faster, resulting in a diffusion coefficient much larger, than for a stationary plasma. Particle simulation is carried out and the results offer a qualitative explanation for some experimental data from the Tokamak Fusion Test Reactor.

Original language	English
Pages (from-to)	2643-2646
Number of pages	4
Journal	Physical review letters
Volume	59
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.59.2643
Publication status	Published - 1987

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.59.2643

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abstract = "Particle orbits in a rotating tokamak plasma are calculated from the equation of motion in the frame that rotates with the plasma. It is found that heavy particles in a rotating plasma can drift away from magnetic surfaces significantly faster, resulting in a diffusion coefficient much larger, than for a stationary plasma. Particle simulation is carried out and the results offer a qualitative explanation for some experimental data from the Tokamak Fusion Test Reactor.",

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AB - Particle orbits in a rotating tokamak plasma are calculated from the equation of motion in the frame that rotates with the plasma. It is found that heavy particles in a rotating plasma can drift away from magnetic surfaces significantly faster, resulting in a diffusion coefficient much larger, than for a stationary plasma. Particle simulation is carried out and the results offer a qualitative explanation for some experimental data from the Tokamak Fusion Test Reactor.

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