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

Broadband fluctuations and particle transport in the edge plasma during ECRH in DITE

P. Mantica, G. Vayakis, J. Hugill, S. Cirant, R.A. Pitts, G.F. Matthews1991年被引用 19Nuclear FusionIF 3出版社

Measurements of edge broadband magnetic field, density and electric field fluctuations up to 300 kHz have been performed in DITE Ohmic and electron cyclotron resonance heated (ECRH) plasmas. Detailed characterization of the structure of the magnetic fluctuations has been obtained using measurements in different poloidal and toroidal locations and radial profiles in the scrape-off layer. The cross-field particle flux driven by electric field and density fluctuations has been measured and found to be comparable to the total particle outflow measured by Langmuir probes embedded in the limiters. In particular, the increase of particle transport during ECRH is completely accounted for by the increase of electric field and density fluctuations. Magnetic fluctuations also increase during ECRH but do not contribute significantly to particle transport and are probably simply a consequence of the perpendicular and parallel currents driven by pressure fluctuations. In the conditions of the experiment, the edge response is not due to direct interaction of the radiofrequency with the boundary plasma, but rather to the effects of the thermal wave propagating from the absorption zone.

日本語訳

DITEオーミックおよび電子サイクロトロン共鳴加熱(ECRH)プラズマにおいて、300kHzまでのエッジ広帯域磁場、密度、電場揺動の測定が行われた。磁場揺動の構造の詳細な特性評価は、異なるポロイダルおよびトロイダル位置での測定と、スクレイプオフ層における半径方向プロファイルを用いて得られた。電場および密度揺動によって駆動される断面粒子束が測定され、リミターに埋め込まれたラングミュアプローブによって測定された全粒子流出量と同程度であることが判明した。特に、ECRH中の粒子輸送の増加は、電場および密度揺動の増加によって完全に説明される。磁場揺動もECRH中に増加するが、粒子輸送には有意に寄与せず、おそらく単に圧力揺動によって駆動される垂直および平行電流の結果である。実験の条件下では、エッジ応答は高周波と境界プラズマとの直接的な相互作用によるものではなく、むしろ吸収領域から伝播する熱波の影響によるものである。

wiki

Electron cyclotron heatingEdge plasmaParticle transport
この論文にはまだAI要約がありません。

関連論文

Electrostatic and magnetic measurements of turbulence and transport in Extrap T2

1999Plasma Physics and Controlled Fusion

Particle pump-out induced by trapped electron mode turbulence in electron cyclotron heated plasmas on XuanLong-50 spherical torus

2023Nuclear Fusion

Experimental study of particle transport and density fluctuations in LHD

2006Nuclear Fusion

Electrostatic and magnetic turbulence in the TJ-I tokamak

1990Nuclear Fusion

Experimental study of a microwave produced toroidal plasma

1997Plasma Physics and Controlled Fusion

Effects of ICRH on electrostatic fluctuations and particle transport in the boundary plasma of TEXTOR

1991Nuclear Fusion

Fluctuations and transport in a reversed field pinch edge plasma

1991Nuclear Fusion

Effects of density gradients and fluctuations at the plasma edge on ECEI measurements at ASDEX Upgrade

2018Plasma Physics and Controlled Fusion

RF current drive and plasma fluctuations

2011Plasma Physics and Controlled Fusion

Multifield measurement of magnetic fluctuation-induced particle flux in a high-temperature toroidal plasma

2016Nuclear Fusion