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

Excitation of (2,1) neoclassical tearing modes by mode coupling with (1,1) internal mode in EAST

Tonghui Shi, Baonian Wan, Biao Shen, Youwen Sun, Jinping Qian, Liqun Hu, Xianzu Gong, Guangjun Liu, Zhengping Luo, Guoqiang Zhong2013年Plasma Physics and Controlled FusionIF 2.2出版社

Neoclassical tearing modes (NTM) are observed in discharges with auxiliary heating LH+ICRF and LH only during H-mode in EAST. The m/n = 2/1 NTM is triggered by strongly coupling with an m/n = 1/1 internal mode. Here, LH and ICRF are the abbreviations of lower hybrid resonance heating and ion cyclotron resonance frequency heating, respectively. The mode number of the NTM is m/n = 2/1, where m is the poloidal mode number and n is the toroidal mode number. Just before the triggering of NTMs, an m/n = 1/1 internal mode appears in the soft x-ray emission at plasma centre when the intensity of hard x-ray (IHX) reaches a critical value. The mode, characterized by frequency chirping in the spectrum, may be related to suprathermal electrons produced by LH. The saturated magnetic island width wsat of the NTM is strongly correlated with poloidal βp. Normalized βN,onset and the magnetic island critical width wcrit increase with electron temperature Te.

日本語訳

ネオクラシカル・ティアリングモード(NTM)は、EASTにおけるHモード中の補助加熱LH+ICRFおよびLHのみの放電で観測される。m/n=2/1 NTMは、m/n=1/1内部モードとの強い結合によってトリガーされる。ここで、LHおよびICRFは、それぞれ低域混成共鳴加熱およびイオンサイクロトロン周波数帯加熱の略称である。NTMのモード数はm/n=2/1であり、ここでmはポロイダルモード数、nはトロイダルモード数である。NTMのトリガー直前に、m/n=1/1内部モードがプラズマ中心部の軟X線放射に現れる。これは、硬X線強度(IHX)が臨界値に達したときである。スペクトルにおける周波数チャープを特徴とするこのモードは、LHによって生成された超熱電子に関連している可能性がある。NTMの飽和磁気島幅wsatは、ポロイダルベータ値βpと強く相関する。規格化ベータ値βN,onsetおよび磁気島の臨界幅は、電子温度Teとともに増加する。

装置

east高精度(タイトル一致)

wiki

EASTTearing modeNeoclassical tearing modeMode coupling
この論文にはまだAI要約がありません。

関連論文

Excitation of internal m = 1 mode during application of resonant magnetic perturbations on J-TEXT tokamak

2017Plasma Physics and Controlled Fusion

Experimental study of core MHD events in thousand-second improved confinement plasma on the EAST tokamak

2023Nuclear Fusion

Triggering of neo-classical tearing modes by mode coupling

2003Nuclear Fusion

Disruption avoidance by stabilizing coupled MHD modes using resonant magnetic perturbations on J-TEXT

2023Plasma Physics and Controlled Fusion

Numerical study on toroidal mode coupling and triggering of neoclassical tearing modes by sawteeth

2019Nuclear Fusion

Observation of neoclassical tearing-mode excitation in EAST low-βp H-mode plasmas using a gas electron multiplier-based camera

2022Nuclear Fusion

Magnetohydrodynamic behaviour during core transport barrier experiments with ion Bernstein wave heating in PBX-M: II n = m - 1 and n = m modes

1998Nuclear Fusion

Geodesic acoustic mode (GAM) like oscillations and RMP effect in the STOR-M tokamak

2018Nuclear Fusion

Excitation of high frequency pressure driven modes in non-axisymmetric equilibrium at high βpol in PBX-M

1993Nuclear Fusion

Overview of initial negative triangularity plasma studies on the ASDEX Upgrade tokamak

2023Nuclear Fusion