A fast shutdown technique for large tokamaks

被引：32

作者：

Jardin, SC ^{[1
]}

Schmidt, GL ^{[1
]}

Fredrickson, ED ^{[1
]}

Hill, KW ^{[1
]}

Hyun, J ^{[1
]}

Merrill, BJ ^{[1
]}

Sayer, R ^{[1
]}

机构：

[1] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

来源：

NUCLEAR FUSION | 2000年 / 40卷 / 05期

关键词：

D O I：

10.1088/0029-5515/40/5/305

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 practical method is proposed for the fast shutdown of a large ignited tokamak. The method consists of injecting a rapid series of 30-45 (6 mm) deuterium pellets doped with a small (0.0005%) concentration of krypton impurity, and simultaneously ramping the plasma current and shaping fields down over a period of several seconds using the poloidal field system. Detailed modelling with the Tokamak Simulation Code using a newly developed pellet mass deposition model shows that this method should terminate the discharge in a controlled and stable way without producing significant numbers of runaway electrons. A partial prototyping of this technique was accomplished in TFTR.

引用

页码：923 / 933

页数：11

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