Experimental Check of Deceleration of Neutral Beam-Injected Energetic Ions in the HL-2A Tokamak
スポンサーリンク
概要
- 論文の詳細を見る
Short pulses of a deuterium neutral beam (NB) with a duration of less than ∼ 5 ms were co-injected into magnetohydrodynamic (MHD)-quiescent ohmic deuterium plasmas of the HL-2A tokamak to study the variation of the slowing-down time in two different electron temperature environments. Analyses were made for the decay rate of D-D neutrons produced by beam-plasma interaction following NB turn-off, i.e., experimentally observed neutron decay rates were compared with those predicted by a classical slowing-down model. The results suggest the beam ions decelerate without significant loss in the HL-2A tokamak in round terms. When the critical energy for beam ions is higher than the beam injection energy, it seems that a small fraction of the beam ions is lost.
著者
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ISOBE Mitsutaka
National Insitute for Fusion Science
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MORITA Shigeru
National Insitute for Fusion Science
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TOI Kazuo
National Insitute for Fusion Science
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Chen Wei
Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
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Yang Qingwei
Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
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Liu Yi
Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
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Duan Xuru
Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
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MORITA Shigeru
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
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TOI Kazuo
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
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YUAN Guoliang
Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
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ZHANG Yipo
Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
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YANG Jinwei
Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
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YANG Qingwei
Southwestern Institute of Physics, P. O. Box 432, Chengdu, China
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LIU Yi
Southwest Institute of Physics
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