STUDY OF EFFECTS OF IMPURITY IONS AND NEUTRAL ATOMS ON REVERSED-FIELD PINCH BY 2-D MHD PINCH SIMULATION
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概要
- 論文の詳細を見る
Two-dimensional MHD pinch simulation code, "TOPICS", which includes the effects of the impurity ions, the neutral atoms and anomalous resistivity, has been applied to the investigation of the RFP-plasmas at the setting-up phase of the TPE-1R. Simulations are compared with the typical two cases of the experiment : (a) the lower initial bias field and the higher plasma current density and (b) the higher initial bias field and the lower plasma current dnesity. The magnetic field profiles at the setting-up phase in the experiments can be fairly well explained by the simulation assuming the 50% ionization degree of the initial plasma and the presence of 10% oxygen. It is also found from the simulation that the radiation loss due to 5 to 10% impurities is the dominant electron energy loss mechanism. The toroidal magnetic field profile at the setting-up phase calculated by using the isotropic anomalous resistivity is much narrower than that by the classical resistivity.
- 核融合科学研究所の論文
著者
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Nagata A.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Ogawa K.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Okamoto M.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Ashida H.
Research Information Center Institute Of Plasma Physics Nagoya University:electrotechincal Laborator
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Hirano Y.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Maejima Y.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Shimada T.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Nagata A.
Research Information Center Institute Of Plasma Physics Nagoya University:faculty Of Engineering Hir
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Maejima Y.
Research Information Center Institute Of Plasma Physics Nagoya University:electrotechincal Laborator
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Nagata A.
Research Information Center Institute Of Plasma Physics Nagoya University
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