Design and installation of a ferromagnetic wall in tokamak geometry

被引：4

作者：

Hughes, P. E. ^{[1
]}

Levesque, J. P. ^{[1
]}

Rivera, N. ^{[1
]}

Mauel, M. E. ^{[1
]}

Navratil, G. A. ^{[1
]}

机构：

[1] Columbia Univ, Plasma Phys Lab, New York, NY 10027 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2015年 / 86卷 / 10期

关键词：

BLANKET; STEELS;

D O I：

10.1063/1.4932312

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Low-activation ferritic steels are leading material candidates for use in next-generation fusion development experiments such as a prospective component test facility and DEMO power reactor. Understanding the interaction of plasmas with a ferromagnetic wall will provide crucial physics for these facilities. In order to study ferromagnetic effects in toroidal geometry, a ferritic wall upgrade was designed and installed in the High Beta Tokamak-Extended Pulse (HBT-EP). Several material options were investigated based on conductivity, magnetic permeability, vacuum compatibility, and other criteria, and the material of choice (high-cobalt steel) is characterized. Installation was accomplished quickly, with minimal impact on existing diagnostics and overall machine performance, and initial results demonstrate the effects of the ferritic wall on plasma stability. (C) 2015 AIP Publishing LLC.

引用

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