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Expansion of parameter space for toroidal Alfven eigenmode experiments in TFTR

K L Wong, J R Wilson, Z Y Chang, G Y Fu, E Fredrickson, G W Hammett, C Bush, C K Phillips, J Snipes, G Taylor1994年Plasma Physics and Controlled FusionIF 2.2出版社

Several techniques were used to excite toroidal Alfven eigenmodes (TAE) in the Tokamak Fusion Test Reactor (TFTR) (Proc. 13th Int. Conf. on Plasma Physics and Controlled Nuclear Fusion Research Vol 1 (Vienna: IAEA, 1990) 9) at magnetic fields above 10 kG. These involved pellet injection to raise the plasma density, variation of the plasma current to change the energetic ion orbit and the q-profile, and ICRF heating to produce energetic hydrogen ions at velocities comparable with 3.5 MeV alpha particles created in deuterium-tritium (d-t) fusion reactions. The amplitude of the TAE modes observed in ICRF-heated plasmas behaves differently from those driven by neutral beams. This can be explained by the difference in the energetic ion orbits. These experimental results are presented and relevance to fusion reactors are discussed.

日本語訳

トカマク核融合試験炉(TFTR)において、10 kG以上の磁場でトロイダル・アルフヴェン固有モード(TAE)を励起するために、いくつかの手法が用いられた(Proc. 13th Int. Conf. on Plasma Physics and Controlled Nuclear Fusion Research Vol 1 (Vienna: IAEA, 1990) 9)。これらの手法には、プラズマ密度を上昇させるためのペレット入射、高エネルギーイオン軌道とq分布を変化させるためのプラズマ電流の変動、および重水素-トリチウム(d-t)核融合反応で生成される3.5 MeVアルファ粒子と同等の速度を持つ高エネルギー水素イオンを生成するためのICRF加熱が含まれる。ICRF加熱プラズマで観測されたTAEモードの振幅は、中性粒子ビームによって駆動されるものとは異なる挙動を示す。これは、高エネルギーイオン軌道の違いによって説明できる。これらの実験結果を提示し、核融合炉への関連性について議論する。

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tftr高精度(タイトル一致)

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Alfvén waveAlfvén eigenmodeTFTRToroidal Alfvén Eigenmode
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