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

Numerical simulation of electron cyclotron current drive in magnetic islands of neo-classical tearing mode

K Hamamatsu, T Takizuka, N Hayashi, T Ozeki2007年Plasma Physics and Controlled FusionIF 2.2出版社

Electron cyclotron current drive (ECCD) has been numerically simulated in magnetic islands caused by neo-classical tearing modes. The electron drift orbits are tracked with the Coulomb collisions and the quasi-linear diffusion by EC waves, which are simulated by the Monte-Carlo method. The EC resonance region is assumed to be located around the O-point and localized in the toroidal direction. The driven current is well confined in the helical flux tube which includes the EC resonance region. The driven current channel looks like a 'snake' in real space. As the results of the ECCD with 10 MW in a plasma with ne = 3 × 1019 m−3 and Te = 10 keV, the current drive efficiency is about 1.6 times higher than that of an axi-symmetric plasma with no magnetic island. The driven current profile tends to peak around the O-point with increasing EC wave power.

日本語訳

電子サイクロトロン電流駆動(ECCD)を、新古典テアリングモードによって引き起こされる磁気島内において数値シミュレーションした。電子のドリフト軌道を、クーロン衝突およびEC波による準線形拡散とともに追跡し、モンテカルロ法によりシミュレーションした。EC共鳴領域は、O点付近に位置し、トロイダル方向に局在すると仮定した。駆動電流は、EC共鳴領域を含むヘリカル磁束管内に良好に閉じ込められる。駆動電流チャネルは、実空間において「スネーク」状に見える。プラズマパラメータを ne = 3 × 1019 m−3、Te = 10 keV とし、10 MW のECCDを行った結果、電流駆動効率は、磁気島のない軸対称プラズマの場合よりも約1.6倍高い値となった。駆動電流分布は、EC波パワーの増大に伴い、O点付近でピークを形成する傾向を示す。

wiki

Current driveTearing modeMagnetic islandsElectron cyclotron current drive
この論文にはまだAI要約がありません。

関連論文

Influence of trapped electrons on ECCD in Heliotron J

2011Nuclear Fusion

Non-linear effects in electron cyclotron current drive applied for the stabilization of neoclassical tearing modes

2014Nuclear Fusion

Current drive and magnetic turbulence experiments with electron cyclotron and lower hybrid waves on the Versator-II tokamak

1998Nuclear Fusion

Plasma dynamics with second and third-harmonic ECRH and access to quasi-stationary ELM-free H-mode on TCV

2007Nuclear Fusion

Modelling of the electron cyclotron current drive experiments in the TCV tokamak

2003Nuclear Fusion

Non-inductive current drive using second harmonic electron cyclotron waves on the WT-3 tokamak

1991Nuclear Fusion

Detailed measurements of the electron cyclotron current drive efficiency on DIII-D

2002Nuclear Fusion

Electron cyclotron heating and current drive studies during current ramp-up in Tore-Supra

2005Plasma Physics and Controlled Fusion

Stabilization of energetic-ion-driven MHD modes by ECCD in Heliotron J

2013Nuclear Fusion

ECH physics and new operational regimes on TCV

2002Plasma Physics and Controlled Fusion