Critical threshold behavior for steady-state internal transport barriers in burning plasmas

被引：15

作者：

Giruzzi, Garcia G. ^{[1
]}

Artaud, J. F. ^{[1
]}

Basiuk, V. ^{[1
]}

Decker, J. ^{[1
]}

Imbeaux, F. ^{[1
]}

Peysson, Y. ^{[1
]}

Schneider, M. ^{[1
]}

机构：

[1] Assoc EURATOM CEA, DSM, IRFM, F-13108 St Paul Les Durance, France

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.100.255004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Burning tokamak plasmas with internal transport barriers are investigated by means of integrated modeling simulations. The barrier sustainment in steady state, differently from the barrier formation process, is found to be characterized by a critical behavior, and the critical number of the phase transition is determined. Beyond a power threshold, alignment of self-generated and noninductively driven currents occurs and steady state becomes possible. This concept is applied to simulate a steady-state scenario within the specifications of the International Thermonuclear Experimental Reactor.

引用

页数：4

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