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A model of major disruption in tokamaks

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Abstract

A mechanism for the onset of the major disruption is proposed which considers the effect of magnetic stochasticity on the growth of the m=2 tearing mode. The toroidicity can cause stochasticity near the separatrix of the m=2 magnetic island which enhances the current viscosity, resulting in explosive growth. The threshold condition and the time scale of rapid growth are studied. The role of the toroidal coupling to the m=1 component is also discussed. (author).
Authors:
Publication Date:
May 01, 1992
Product Type:
Technical Report
Report Number:
NIFS-146
Reference Number:
SCA: 700310; PA: JPN-92:011118; SN: 93000918523
Resource Relation:
Other Information: PBD: May 1992
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; TOKAMAK DEVICES; PLASMA DISRUPTION; PLASMA; TEARING INSTABILITY; MAGNETIC SURFACES; ROTATIONAL TRANSFORM; ANALYTICAL SOLUTION; NONLINEAR PROBLEMS; INSTABILITY GROWTH RATES; 700310; PLASMA CONFINEMENT
OSTI ID:
10111161
Research Organizations:
National Inst. for Fusion Science, Nagoya (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE93753197; TRN: JP9211118
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
22 p.
Announcement Date:
Jun 30, 2005

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Citation Formats

Itoh, Kimitaka, Itoh, Sanae, Fukuyama, Atsushi, Tsuji, Shunji, and Lichtenberg, A J. A model of major disruption in tokamaks. Japan: N. p., 1992. Web.
Itoh, Kimitaka, Itoh, Sanae, Fukuyama, Atsushi, Tsuji, Shunji, & Lichtenberg, A J. A model of major disruption in tokamaks. Japan.
Itoh, Kimitaka, Itoh, Sanae, Fukuyama, Atsushi, Tsuji, Shunji, and Lichtenberg, A J. 1992. "A model of major disruption in tokamaks." Japan.
@misc{etde_10111161,
title = {A model of major disruption in tokamaks}
 author = {Itoh, Kimitaka, Itoh, Sanae, Fukuyama, Atsushi, Tsuji, Shunji, and Lichtenberg, A J}
 abstractNote = {A mechanism for the onset of the major disruption is proposed which considers the effect of magnetic stochasticity on the growth of the m=2 tearing mode. The toroidicity can cause stochasticity near the separatrix of the m=2 magnetic island which enhances the current viscosity, resulting in explosive growth. The threshold condition and the time scale of rapid growth are studied. The role of the toroidal coupling to the m=1 component is also discussed. (author).}
 place = {Japan}
 year = {1992}
 month = {May}
 }