BUBBLE FORMATION DUE TO THE SURFACE TEARING MODE.

被引：0

作者：

Kurita, G. ^{[1
]}

Tuda, T. ^{[1
]}

Tsunematsu, Y. ^{[1
]}

Tanaka, Y. ^{[1
]}

Takeda, T. ^{[1
]}

Azumi, M. ^{[1
]}

Takizuka, T. ^{[1
]}

机构：

[1] JAERI, Tokai-mura, Jpn, JAERI, Tokai-mura, Jpn

来源：

Nuclear Fusion | 1986年 / 26卷 / 0n期

关键词：

PLASMAS;

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摘要：

Non-linear calculations of the free-boundary mode in a cylindrical tokamak plasma with finite conductivity are carried out by using the pseudo-vacuum model. Applicability of the pseudo-vacuum model to the study of free-boundary kink modes is carefully checked by linear analysis both analytically and numerically. In the non-linear calculations, vacuum bubbles can be formed due to surface tearing mode as well as to free-boundary kink mode under the condition that the safety factor at the plasma surface, q//2, is around two. This bubble formation is a candidate for major disruptions in tokamak discharges with q//2 approximately equal to two.

引用

页码：449 / 460