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Internal transport barrier with improved confinement in the JT-60U tokamak

Y Koide, T Takizuka, S Takeji, S Ishida, M Kikuchi, Y Kamada, T Ozeki, Y Neyatani, H Shirai, M Mori1996年Plasma Physics and Controlled FusionIF 2.2出版社

Characteristics of the internal transport barrier (ITB) were studied. The region of steep and , i.e. the ITB front, propagated from the core outwards. The thickness of the ITB front was about 3 cm. The ITB worked as a particle transport barrier as well as a thermal transport barrier for ions. The threshold heating power for ITB formation strongly increased with electron density and was independent of the toroidal magnetic field. ITB with was sustained for twice the global energy confinement time . A repetitive relaxation phenomenon at ITB was observed, which induced spikes like ELMs but had a different poloidal distribution.

日本語訳

内部輸送障壁(ITB)の特性を研究した。急峻な および の領域、すなわちITBフロントは、コアから外側に向かって伝播した。ITBフロントの厚さは約3 cmであった。ITBは、イオンの熱輸送障壁としてだけでなく、粒子輸送障壁としても機能した。ITB形成のための閾値加熱パワーは、電子密度とともに強く増加し、トロイダル磁場には依存しなかった。 を有するITBは、全球エネルギー閉じ込め時間 の2倍にわたって維持された。ITBにおいて繰り返し緩和現象が観測され、ELMに類似するがポロイダル分布が異なる スパイクを誘起した。

wiki

JT-60UTransport barrierInternal transport barrierImproved confinement
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