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Characteristic peaked profiles of ion temperature and toroidal rotation velocity in JT-60 hot ion modes

Y. Koide, S. Ishida, A. Sakasai, H. Shirai, T. Hirayama, H. Kubo, T. Sugie, A. Funahashi1993年被引用 13Nuclear FusionIF 3出版社

In JT-60, hot ion modes (Ti(0) = 9-13 keV, H0 beam into H+ plasma) exhibiting peaked profiles of the ion temperature, Ti(r), and the toroidal rotation velocity, Vt(r) have been obtained with an effective safety factor qeff ~ 10. Experiments have been performed to study the characteristics of these peaked profiles in which qeff was scanned over the range 4.5 < qeff < 15. Peaking of the profiles of Ti(r) and Vt(r) occurs within a limited region. Moreover, the boundary of the region of improved performance is well characterized by the q = 1, 2 and 3 surfaces. The improvement in global confinement in JT-60 hot ion modes is attributed to the substantial increase in the volume of the enhanced confinement region within the q = 3 surface, in which region the peaked Ti profile is generated

日本語訳

JT-60において、イオン温度分布Ti(r)およびトロイダル回転速度分布Vt(r)のピーキングを示す高温イオンモード(Ti(0) = 9-13 keV、H+プラズマへのH0ビーム入射)が、有効安全係数qeff ≈ 10で得られた。qeffを4.5 < qeff < 15の範囲で走査し、これらのピーキングした分布の特性を調べる実験が行われた。Ti(r)およびVt(r)のピーキングは限られた領域内で発生する。さらに、改善された閉じ込め領域の境界はq = 1、2、3の各有理面によって良好に特徴づけられる。JT-60における高温イオンモードの閉じ込め改善は、q = 3面内の改善閉じ込め領域の体積が実質的に増大したことに起因し、この領域内でピーキングしたTi分布が生成される。

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jt-60sa高精度(タイトル一致)

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Toroidal rotationJT-60
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