DISRUPTIVE TOKAMAK DENSITY LIMIT AS SCRAPE-OFF LAYER DIVERTOR PHENOMENON

被引：97
|
作者：
BORRASS, K
机构：
[1] NET Team, Max-Planck-Institut für Plasmaphysik, Garching bei München
来源：
NUCLEAR FUSION | 1991年 / 31卷 / 06期
关键词：
D O I：
10.1088/0029-5515/31/6/003
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：
A model based on analysis of the scrape-off layer and divertor region is proposed for the disruptive density limit in divertor tokamaks. A critical edge density is derived from the power balance in front of the divertor plates. A crucial element of the model is the description of recycling. The model is extensively validated against ASDEX results. Significant differences observed in ASDEX before and after hardening are described by the model as being a consequence of the modified divertor design. In both regimes the absolute value as well as the scaling of the critical density in terms of q, B(t) and P(in) are reproduced.
引用
收藏
页码：1035 / 1051
页数：17
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