EXPERIMENT ON HEATING WITH SIMULTANEOUS INJECTION OF NEUTRAL-BEAM AND LOWER HYBRID WAVES IN THE JIPP-T II TORUS
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概要
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A hydrogen beam of 16kV, 4 A was co-injected into hydrogen plasmas and coupled to an rf of 800MHz, up to 150kW. It has been observed with the measurement of parallel charge-exchange neutrals that the fast ions above 16keV are enhanced by the interaction with the lower hybrid waves. The enhancement is critically reduced when the line-averaged electron density is higher than 1.6×10^<13>cm^<-3> both in the toroidal fields of 22kG and 16kG. For the 22kG case, the cause of the reduction may be related to the location of the turning point of the incident waves; that is, the turning point, in higher densities, locates outside the region where the fast ions produced by NBI are relatively abundant. For the 16kG case, however, this interpretation is valid only when a part of the incident wave energy is transferred into waves of shorter wavelengthes. The ion-temperature increment in the simultaneous heating agrees with the sum of those in the individual heatings even when the beam-rf interaction is considerably strong.
- 核融合科学研究所の論文
著者
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Kaneko O.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Oka Y.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Tanaka S.
Biol. Lab. Nippon Med. Schl.
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Sato K.
Research Information Center Institute Of Plasma Physics Nagoya University
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Kawahata K.
Research Information Center Institute Of Plasma Physics Nagoya University
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FUJITA J.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Noda N.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Ohkubo K.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Tanahashi S.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Sakurai K.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Sakurai K.
Dept. Biol. Fac. Sci. Tokyo Metro. Univ.
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Sugihara R.
Research Information Center, Institute of Plasma Physics, Nagoya University
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KAWASUMI K.
Research Information Center, Institute of Plasma Physics, Nagoya University
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Noda N.
Research Information Center Institute Of Plasma Physics Nagoya University
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Fujita J.
Research Information Center Institute Of Plasma Physics Nagoya University
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Osanai Y.
Research Information Center Institute Of Plasma Physics Nagoya University
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Tanahashi S.
Research Information Center Institute Of Plasma Physics Nagoya University
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Ohkubo K.
Research Information Center Institute Of Plasma Physics Nagoya University
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Sugihara R.
Research Information Center Institute Of Plasma Physics Nagoya University
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Oka Y.
Research Information Center Institute Of Plasma Physics Nagoya University:plasma Research Center Uni
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Okubo Y.
Institute Of Plasma Physics Nagoya University
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