Structure of the classical scrape-off layer of a tokamak

被引：17
|
作者：
Rozhansky, V. [1 ]
Kaveeva, E. [1 ]
Senichenkov, I. [1 ]
Vekshina, E. [1 ]
机构：
[1] Peter Great St Petersburg Polytech Univ, Polytech Skaya 29, St Petersburg 195251, Russia
来源：
PLASMA PHYSICS AND CONTROLLED FUSION | 2018年 / 60卷 / 03期
关键词：
SOL width; neoclassical flows; plasma edge modeling; CONSISTENT ELECTRIC-FIELDS; E X B; PLASMA EDGE; DRIFTS; CONDUCTIVITY; PHYSICS; ITER;
D O I：
10.1088/1361-6587/aaa11a
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The structure of the scrape-off layer (SOL) of a tokamak with little or no turbulent transport is analyzed. The analytical estimates of the density and electron temperature fall-off lengths of the SOL are put forward. It is demonstrated that the SOL width could be of the order of the ion poloidal gyroradius, as suggested in Goldston (2012 Nuclear Fusion 52 013009). The analytical results are supported by the results of the 2D simulations of the edge plasma with reduced transport coefficients performed by SOLPS-ITER transport code.
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页数：10
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