Tomography of full sawtooth crashes on the Tokamak Fusion Test Reactor

Journal Article · Wed May 01 04:00:00 EDT 1996 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.872025· OSTI ID:282885

Nagayama, Y ^[1]; Yamada, M; Park, W; Fredrickson, E D; Janos, A C; McGuire, K M; Taylor, G ^[2]

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1. National Institute for Fusion Science, Nagoya 464-01 (Japan)
2. Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)

Full sawtooth crashes in high temperature plasmas have been investigated on the Tokamak Fusion Test Reactor (TFTR) [Plasma Phys. Controlled Fusion {bold 33,} 1509 (1991)]. A strong asymmetry in the direction of major radius, a feature of the ballooning mode, and a remaining {ital m}=1 region after the crash have been observed with electron cyclotron emission image reconstructions. The TFTR data is not consistent with two-dimensional (2-D) models; it rather suggests a three-dimensional (3-D) localized reconnection arising on the bad curvature side. This process explains the phenomenon of fast heat transfer which keeps the condition {ital q}{sub 0}{lt}1.{ital {copyright}1996 American Institute of Physics.}

• Research Organization: Princeton Plasma Physics Laboratory
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 282885
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 3; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BALLOONING INSTABILITY
HEAT LOSSES
HIGH-BETA PLASMA
LOW-BETA PLASMA
MAGNETIC RECONNECTION
MAGNETOHYDRODYNAMICS
SAWTOOTH OSCILLATIONS
TFTR TOKAMAK
TOMOGRAPHY