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The development of a negative ion beam plasma neutralizer for ITER NBI

V.A. Zhil'tsov, E.Yu. Klimenko, P.M. Kosarev, V.M. Kulygin, V.V. Platonov, N.N. Semashko, A.A. Skovoroda, V.P. Ukhov, A.A. Mehed'kin2000年被引用 19Nuclear FusionIF 3出版社

A plasma neutralizer (PN) could be an attractive upgrade for the NBI system of ITER. A multicusp magnetic trap with microwave discharge plasma generation has been proposed as a scheme for a PN. The experimental investigation of the scheme is being undertaken in the Kurchatov Institute. The preliminary experiments were done at a small (70 L of plasma volume, 2.45 GHz, 1.5 kW) installation,PNX-1, slightly modified during the experiments to PNX-2. The achieved plasma density of5 × 1011cm-3 exceeded the cut-off density by a factor of 7. The next step in this experimental activity is PNX-U (500 L, 7 GHz, 50 kW). Some results of the PNX-U experiments are presented.

日本語訳

プラズマ中性化装置(PN)は、ITERのNBIシステムにとって魅力的なアップグレードとなり得る。マイクロ波放電プラズマを備えた多極磁気トラップが、PNの方式として提案されている。この方式の実験的調査は、クルチャトフ研究所で実施されている。予備実験は、小型(プラズマ体積70 L、2.45 GHz、1.5 kW)の装置PNX-1で行われ、実験中にPNX-2へと若干の改良が加えられた。達成されたプラズマ密度は5 × 10¹¹ cm⁻³であり、遮断密度の7倍を超えた。この実験活動の次の段階はPNX-U(500 L、7 GHz、50 kW)である。PNX-Uの実験結果の一部が提示される。

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ITERNeutral beam injectionNegative ionIon beamsITER neutral beamBeam plasma
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