Heat Flow during Sawtooth Collapse in Tokamak Plasmas

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概要

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• Heat flow during sawtooth collapse was studied on the WT-3 tokamak by using temporal evolution of soft X-ray intensity profile in the poloidal cross section in a lower hybrid current driven plasma as well as an electron cyclotron heated plasma. Two phases in sawtooth collapses were observed. In the first phase, the hottest spot that is the peak of the soft X-ray distribution approaches the inversion surface and heat flows out through a narrow gate on the inversion surface. In the second phase, the hot-test spot stays on the inversion surface, and heat flows out through the whole inversion surface. This suggests that magnetic reconnection as predicted by Kadomtsev's model occurs in the first phase, but in the second phase, a different mechanism dominates heat flow.

• 社団法人日本物理学会の論文
• 1994-03-15

著者

• Hanada Kazuaki

  Department Of Physics Faculty Of Science Kyoto University

関連論文

• Stabilization and Destabilization of Sawtooth Oscillations by Lower Hybrid Current Drive in the WT-3 Tokamak
• Electron Cyclotron Emission from Lower Hybrid Current Drive Plasma on the WT-3 Tokamak
• A New Method to Analyze Density Fluctuation by Microwave Reflectometry
• Heat Flow during Sawtooth Collapse in Tokamak Plasmas

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