FusionPapers
図版検索トレンドwiki日本の研究
© 2026 FUSIONPAPERS
About法務情報
トップに戻る

Disruptive instabilities in the discharges of the TBR-1 small Tokamak

A Vannucci, I C Nascimento, I L Caldas1989年Plasma Physics and Controlled FusionIF 2.2出版社

Minor and major disruptions as well as sawteeth oscillations (internal disruptions) were identified in the discharges of the small Tokamak TBR-1, and their main characteristics were investigated. The coupling of a growing m=2 resistive mode with an m=1 perturbation seems to be the basic process for the development of a major disruption, while the minor disruption could be associated with the growth of a stochastic region of the plasma between the q=2 and q=3 islands. Measured sawteeth periods were compared with those predicted by scaling laws and good agreement was found. The time necessary for the sawteeth crashes also agrees with the values expected from Kadomtsev's model. However, there are some sawteeth oscillations, corresponding to conditions of higher plasma Zeff, which showed longer crashes and could not be explained by this model.

日本語訳

小型トカマクTBR-1の放電において、小規模および大規模ディスラプション、ならびに鋸歯状振動(内部ディスラプション)が同定され、その主な特性が調査された。成長するm=2抵抗性モードとm=1摂動との結合が、大規模ディスラプションの発生の基本過程であると思われる。一方、小規模ディスラプションは、q=2とq=3の島の間のプラズマの確率領域の成長と関連している可能性がある。測定された鋸歯状周期は、スケーリング則による予測と比較され、良好な一致が見られた。鋸歯状クラッシュに必要な時間も、カドムツェフモデルから期待される値と一致する。しかしながら、より高いプラズマZeffの条件下に対応するいくつかの鋸歯状振動は、より長いクラッシュ時間を示し、このモデルでは説明できなかった。

この論文にはまだAI要約がありません。

関連論文

Internal disruptions in tokamaks

1978Nuclear Fusion

Interpretation of tokamak sawtooth oscillations

1978Nuclear Fusion

Effect of sawteeth on alpha power deposition and ignition in tokamaks

1994Nuclear Fusion

Double sawtooth oscillations in the TEXT tokamak

1986Nuclear Fusion

Double-sawtooth oscillations in the Doublet III tokamak

1985Nuclear Fusion

Numerical simulations of sawteeth in tokamaks

1989Nuclear Fusion

Sawtooth oscillations in a small tokamak

1979Nuclear Fusion

Understanding sawtooth activity during intense electroncyclotron heating experiments on TCV

2001Nuclear Fusion

Stochasticity as the mechanism for the disruptive phase of the m = 1 tokamak oscillations

1984Nuclear Fusion

Giant sawtooth oscillations in the Doublet III tokamak

1985Nuclear Fusion