ON THE DIFFUSION OF IMPURITIES IN TOKAMAK PLASMA

被引：0

作者：

Negrea, Marian ^{[1
]}

Petrisor, Iulian ^{[1
]}

Isliker, Heinz ^{[2
]}

Vogiannou, Athanasios ^{[2
]}

Vlahos, Loukas ^{[2
]}

Constantinescu, Dana ^{[3
]}

Lalescu, Cristian Constantin ^{[1
,4
]}

机构：

[1] Univ Craiova, Dept Phys, Assoc Euratom MECT, Craiova 200585, Romania

[2] Univ Thessaloniki, Assoc Euratom Hellen Republ, Dept Phys, Sect Astrophys Astron & Mech, GR-54006 Thessaloniki, Greece

[3] Univ Craiova, Dept Appl Math, Assoc Euratom MECT, Craiova 200585, Romania

[4] Univ Libre Bruxelles, B-1050 Brussels, Belgium

来源：

ROMANIAN JOURNAL OF PHYSICS | 2011年 / 56卷

关键词：

tokamak; diffusion; magnetic field;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the influence of the magnetic Kubo number, the drift Kubo number and stochastic anisotropy on the diffusion of ions in turbulent, stochastic magnetic fields, applying the decorrelation trajectory method (DCT) and using test-particle simulations. It turns out that the stochastic drifts provide a decorrelation mechanism for the particles from the magnetic lines, and trapping effects are more pronounced, the stronger the magnetic perturbation and the larger the anisotropy in it is. The diffusion coefficients yielded by test particle simulations are in qualitative agreement with those obtained from the DCT method.

引用

页码：74 / 78

页数：5

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