Plasma Equilibrium and Field Diffusion during Current Rise Phase of STP-2 Experiments
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概要
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The plasma with maximum poloidal beta value 73, (the ratio of the plasmapressure to the magnetic pressure of the toroidal plasma current) of 3.0 has beenobtained in STP-2 by compression together with joule heating. In this case of/7.=3.0 the plasma interacts strongly with wall. The maximum 73, value withoutstrong wall contacts was about 1.3. We observed that force-free current is formedin the periphery of the plasma and the penetra.tion of the poloidal magnetic fieldis much faster than the classical one.We have performed a numerical simulation using a 2-D MHI) pinch code"TOPICS" in order to understand this high-beta plasma equilibrium having/7.=3.0 and the mechanism of fast field penetration observed in STP-2 plasmas.It is demonstrated that the fxst field penetration and the observed electron tem-peratures can be explained by introducing the influx of neutral particles and theion acoustic type anomalous resistivity.
- 社団法人日本物理学会の論文
- 1982-12-15
著者
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NAGATA Akiyoshi
Institute of Plasma Physics,Nagoya University
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Nagata Akiyoshi
Institute Of Plasma Physics Nagoya University
関連論文
- Asymmetric Flux Generation and Its Relaxation in Reversed Field Pinch
- Self-Organization and Plasma Dynamo in a Reversed Field Pinch
- Behavior of the Peripheral Plasma in Reversed Field Pinch
- Control of Toroidal Expansion of a High Beta Plasma Column in a Pinch Tokamak by Programmed Pulsed Vertical Field
- Effects of Impurities and Neutrals on Setting-Up Phase of Reversed Field Pinch
- Plasma Equilibrium and Field Diffusion during Current Rise Phase of STP-2 Experiments