Results 41 to 50 of about 52,799 (163)

On the onset of type I edge localized modes [PDF]

Nuclear Fusion, 2009
The affiliation of the first author should be corrected to read G.Y. Antar, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA, Present address: American University of Beirut, Riad El-Solh, Beirut 1107 2020, Lebanon.The following Acknowledgment should be added: This work was supported in part by the US Department of Energy ...
Antar, G. Y., Krasheninnikov, S. I., Snyder, P. B., Moyer, R. A., Pugno, R., Gray, D. S.   +5 more
openaire   +3 more sources

Progress towards edge-localized mode suppression via magnetic perturbations in hydrogen plasmas

Nuclear Fusion
The suppression of edge-localized modes (ELMs) by applying resonant magnetic perturbations (RMPs) is well studied in low collisionality deuterium plasmas as a measure to reduce transient divertor heat loads.
N. Leuthold, W. Suttrop, C. Paz-Soldan, M.G. Dunne, R. Fischer, E. Hinson, M. Knolker, F. Laggner, N.C. Logan, T. Osborne, D. Orlov, L. Schmitz, M. Shafer, M. Willensdorfer, the ASDEX Upgrade Team, the EUROfusion MST1 Team   +15 more
doaj   +1 more source

Characteristics of edge temperature ring oscillation during the stationary improved confinement mode in EAST

Nuclear Fusion, 2023
The I-mode is a natural edge localized mode (ELM)-free regime with H-mode-like improved energy confinement and L-mode-like particle confinement, making it an attractive scenario for future tokamak-based fusion reactors.
A.D. Liu, X.L. Zou, X.M. Zhong, Y.T. Song, M.K. Han, Y.M. Duan, H.Q. Liu, T.B. Wang, E.Z. Li, L. Zhang, X. Feng, G. Zhuang, EAST I-mode Working Group   +12 more
doaj   +1 more source

A single layer spin-orbit torque nano-oscillator

Nature Communications, 2019
Spin torque nano-oscillatiors promise novel microwave applications but the functioning relies on the spin current from additional ferromagnetic or metal layers.
Mohammad Haidar, Ahmad A. Awad, Mykola Dvornik, Roman Khymyn, Afshin Houshang, Johan Åkerman   +5 more
doaj   +1 more source

Experimental observation and edge characteristics of EDA H-mode on the HL-3 tokamak

Nuclear Fusion
The enhanced ${D_\alpha }$ (EDA) H-mode features high energy confinement together with the absence of edge localized modes (ELMs) and impurity accumulation, making it highly attractive for fusion reactors. The EDA H-mode has been observed recently in the
Anshu Liang, Xiaolan Zou, Wulyu Zhong, Yu Zhou, Guoliang Xiao, Rui Ke, Wenping Guo, Shaobo Gong, Liang Liu, Tengfei Sun, Na Wu, Min Jiang, Yiren Zhu, Shiqin Wang, Guanqun Xue, Xin Yu, Jie Wen, Deliang Yu, Zhongbing Shi, Bo Li, Wei Chen, Xiaoquan Ji   +21 more
doaj   +1 more source

Effect of toroidal Alfvén Eigenmode nonlinearity on edge localized mode in HL-2A NBI heated H-mode plasmas

Nuclear Fusion
The present paper reports the observation of shear Alfvénic wave fluctuations prior to the edge localized mode (ELM) crash in HL-2A NBI H-mode plasmas.
X.L. Zhu, W. Chen, J. Bao, R. Ke, P.W. Shi, L.M. Yu, Z.B. Shi, Z.Y. Qiu, M. Jiang, H.L. Wei, Y.G. Li, X.X. He, Z.C. Yang, Y.P. Zhang, D.L. Yu, H.T. Chen, R.R. Ma, Z.X. Wang, J.Q. Li, W.L. Zhong   +19 more
doaj   +1 more source

The formation of an radial edge electric field due to finite ion orbit width effects is the possible root cause of the H-mode edge

Nuclear Fusion
Full orbit-following simulations of thermal ions show that finite ion-orbit width effects create charge separation near the last closed flux surface (LCFS) which generates a localized radial electric field.
G.J. Kramer, A. Bortolon, A. Diallo, R. Maingi   +3 more
doaj   +1 more source

Tokamak edge localized mode onset prediction with deep neural network and pedestal turbulence

Nuclear Fusion
A neural network, BES-ELMnet, predicting a quasi-periodic disruptive eruption of the plasma energy and particles known as edge localized mode (ELM) onset is developed with observed pedestal turbulence from the beam emission spectroscopy system in DIII-D.
Semin Joung, David R. Smith, G. McKee, Z. Yan, K. Gill, J. Zimmerman, B. Geiger, R. Coffee, F.H. O’Shea, A. Jalalvand, E. Kolemen   +10 more
doaj   +1 more source

Edge Localized Mode Control in TCV

, 2012
The Tokamak concept, based on magnetic confinement of a hydrogen plasma, is one of today's most promising paths to energy production by nuclear fusion. The experimental scenarios leading to the largest fusion rate are based on a high confinement plasma regime, the H-mode, in which the energy and particle confinement are enhanced by a transport barrier ...
openaire   +1 more source

Investigation of LHCD capabilities in I-mode plasma on EAST tokamak

Nuclear Fusion
Improved energy confinement mode (I-mode) regime offers promising confinement characteristics with temperature pedestal and low-confinement mode (L-mode) like particle transport.
C.B. Wu, B.J. Ding, M.H. Li, X.L. Zou, X.M. Zhong, A.D. Liu, Y.Q. Chu, X.H. Wu, S.Y. Lin, Y.F. Jin, E.Z. Li, M. Wang, X.J. Wang, H.Q. Liu, Q. Zang, J.S. Gen, Y.H. Cao, J.L. Chen, W. Sun, H.W. Zhao, G.B. Zhang, W.W. Zhang, X.X. Wang, X.Z. Gong, Y.T. Song, EAST I-mode Working Group, the EAST Team   +26 more
doaj   +1 more source