FusionPapers
図版検索トレンドwiki日本の研究
© 2026 FUSIONPAPERS
About法務情報
トップに戻る

Transport and improved confinement in high power edge radiation cooling experiments on TEXTOR

A.M. Messiaen, J. Ongena, U. Samm, M.Z. Tokar, B. Unterberg, D. Boucher, K.H. Finken, E. Hintz, R. Koch, G. Mank1996年被引用 36Nuclear FusionIF 3出版社

A stationary high level of edge radiation ( gamma =Prad/Ptot up to ~90% with peak radiation up to ~1 MW/m3) has been obtained in TEXTOR by using silicon and/or neon as radiating impurities. The confinement and neutron reactivity are not degraded but can even be improved at high plasma densities. Stationary reactor relevant heating and radiated power flows with a figure of merit fH/qa=0.6 have been achieved. The interpretation of these results shows a reduction of the bulk transport in the presence of edge radiation cooling. The properties of the radiatively cooled discharges are interpreted or modelled mainly by the self-consistent radiative transport code RITM, and also by the codes TRANS and PRETOR. From these modelling studies an enhancement of the bulk confinement is found in terms of the reduction of the convective losses and the decrease of the edge electron temperature, which results in a peaking of the current profile. The code RITM also predicts self-consistently the detailed properties of the radiating layer for different injected impurities as a function of their incoming flux, and shows that the optimal conditions to obtain confinement improvement as well as minimum fuel dilution by the radiating impurity are obtained at high density

日本語訳

TEXTORにおいて、シリコンおよび/またはネオンを放射不純物として用いることにより、定常的な高レベルの放射(γ = Prad/Ptot 最大約90%、ピーク放射約1 MW/m3)が達成された。閉じ込めおよび中性子反応率は劣化せず、むしろ高プラズマ密度において向上し得る。定常的な炉心関連加熱および放射パワー流束は、性能指数 fH/qa = 0.6 で達成された。これらの結果の解釈は、放射冷却を伴う周辺部の存在下でのバルク輸送の低減を示している。放射冷却放電の特性は、主に自己無撞着な放射輸送コードRITMによって解釈・モデル化され、さらにTRANSおよびPRETORコードによっても検討された。これらのモデル研究から、対流損失の低減と周辺電子温度の低下という観点でバルク閉じ込めの向上が見出され、その結果として電流分布のピーキングが生じる。RITMコードはまた、異なる注入不純物について、その入射フラックスの関数として放射層の詳細な特性を自己無撞着に予測し、閉じ込め改善と燃料希釈の最小化の両方に最適な条件が高密度において得られることを示している。

装置

textor高精度(タイトル一致)

wiki

TEXTORImproved confinement
この論文にはまだAI要約がありません。

関連論文

Improved confinement with edge radiative cooling at high densities and high heating power in TEXTOR

1994Nuclear Fusion

Radiated power and ionic effective charge during neon injection experiments on TEXTOR

1996Nuclear Fusion

Neon radiation efficiency for different confinement regimes in TEXTOR-94

2000Nuclear Fusion

The influence of plasma-edge properties on high confinement discharges with a radiating plasma mantle at the tokamak TEXTOR-94

1997Plasma Physics and Controlled Fusion

Confinement transitions with radiation cooling in TEXTOR-94

1996Plasma Physics and Controlled Fusion

Effect of radial particle transport on radiation from light impurities

1994Nuclear Fusion

Full-radius integrated modelling of ASDEX Upgrade L-modes including impurity transport and radiation

2024Nuclear Fusion

Achievement of highly radiating plasma in negative triangularity and effect of reactor-relevant seeded impurities on confinement and transport

2025Plasma Physics and Controlled Fusion

Radiation and confinement properties of impurity seeded discharges in the reversed field pinch RFX

2000Nuclear Fusion

Observation of impurity accumulation and its compatibility with high plasma performance in W7-X

2023Plasma Physics and Controlled Fusion