Results 11 to 20 of about 2,212,062 (221)

On plasma vertical stabilization at EAST tokamak

2017 IEEE Conference on Control Technology and Applications (CCTA), 2017
In this paper we discuss the problem of plasma vertical stabilization at the EAST tokamak. By exploiting a plasma/circuit linearized model, we show that the plant cannot be strongly stabilized by using the in-vessel coils and a singleinput-single-output controller that feeds back only the plasma vertical speed z p (i.e. without integral action on z p )
DE TOMMASI, GIANMARIA, MELE, ADRIANO, Luo, Z. P., PIRONTI, ALFREDO, Xiao, B. J.   +4 more
openaire   +5 more sources

Resonant mode effects on rotation braking induced by n = 1 resonant magnetic perturbations in the EAST tokamak

Nuclear Fusion, 2023
The spectrum effects on toroidal rotation braking, induced by n  = 1 resonant magnetic perturbations (RMPs) in the discharges with $q_{95} = 4.1$ and $q_{95} = 5.1$ , are studied in the EAST tokamak.
H. Sheng, Y.W. Sun, X.Y. Li, H.H. Li, X.M. Wu, Y.Y. Li, S.F. Mao, Q. Ma, Y.Q. Liu, C. Ye, X.T. Yan, P.C. Xie, Q. Zang, H.H. Wang, M.N. Jia, M.Y. Ye, the EAST Team   +16 more
doaj   +2 more sources

Cross-tokamak disruption prediction based on domain adaptation

Nuclear Fusion
The high acquisition cost and the significant demand for disruptive discharges for data-driven disruption prediction models in future tokamaks pose an inherent contradiction in disruption prediction research.
Chengshuo Shen, Wei Zheng, Bihao Guo, Yonghua Ding, Dalong Chen, Xinkun Ai, Fengming Xue, Yu Zhong, Nengchao Wang, Biao Shen, Binjia Xiao, Zhongyong Chen, Yuan Pan, J-TEXT Team   +13 more
doaj   +2 more sources

Experiment data-driven modeling of tokamak discharge in EAST [PDF]

Nuclear Fusion, 2021
AbstractA neural network model of tokamak discharge is developed based on the experimental dataset of a superconducting long-pulse tokamak (EAST) campaign 2016–2018. The purpose is to reproduce the response of diagnostic signals to actuator signals without introducing additional physical models.
Chenguang Wan, Zhi Yu, Feng Wang, Xiaojuan Liu, Jiangang Li   +4 more
openaire   +3 more sources

The scalings of the thermal energy confinement time in EAST H-mode plasmas

Nuclear Fusion, 2023
This paper describes scalings of the H-mode confinement database of neutral beam injection (NBI)-lower hybrid wave (LHW) and electron cyclotron resonant heating-LHW plasmas in the EAST tokamak.
T.Q. Jia, J.P. Qian, D.L. Chen, D. Moreau, B. Shen, B. Zhang, X.Z. Gong, J. Huang, J.Y. Zhang, X.D. Yang, R.R. Liang, Y.C. Hu, L.X. Chen, Y.F. He, Y. Tao, Z.H. Wang, L. Zeng, Y.W. Sun   +17 more
doaj   +1 more source

Observation of tearing mode triggering by sawtooth crash with high-Z impurity accumulation in EAST

AIP Advances, 2023
The high-Z impurity accumulation in the plasma core could degrade the plasma performance and may affect sawtooth crash and trigger tearing modes (TMs) in experimental advanced superconducting tokamak (EAST).
Shanshan Pan, Yanmin Duan, Liqing Xu, Yan Chao, Hailin Zhao, Haiqing Liu, Shouxin Wang, Ling Zhang, Yuqi Chu, Wenmin Zhang, Kaixuan Ye, Liqun Hu   +11 more
doaj   +1 more source

Analysis of beam ion driven Alfvén eigenmode stability induced by Tungsten contamination in EAST

Nuclear Fusion, 2023
Alfvén eigenmodes (AE) activity is observed in the EAST high β _N and low B _T discharge 93910, operation scenario dedicated to explore the ITER baseline scenario.
X.H. Wang, J. Huang, J. Varela, H.L. Zhao, D.A. Spong, L.Q. Xu, W. Shen, J.F. Chang, J. Fu, Y.X. Sun, C. Shi, S.S. Wang, the EAST Team   +12 more
doaj   +1 more source

Evolution of Tungsten Fiber‐Reinforced Tungsten‐Remarks on Production and Joining

Advanced Engineering Materials, Volume 25, Issue 19, October 2023., 2023
Material challenges for future fusion reactors demand advanced materials. W‐fiber‐reinforced W‐composite (W f/W) with improved toughness is a promising candidate. It can be produced via chemical vapor deposition or powder metallurgical routes. This review focuses on upscaling W f/W production for fusion applications.
Jan Willem Coenen, Vivian Y. S. Lee, Yiran Mao, Alasdair Morrison, Daniel Dorow-Gerspach, Xiayue Tan, Alexis Terra, Yucheng Wu, Christian Linsmeier   +8 more
wiley   +1 more source

3D Laser Engineering of Molten Core Optical Fibers: Toward a New Generation of Harsh Environment Sensing Devices

Advanced Optical Materials, Volume 10, Issue 18, September 19, 2022., 2022
This work combines femtosecond laser direct writing (FLDW) with a nonconventional optical fiber fabrication technique called the molten core method (MCM), to 3D inscribe thermally stable nanostructures in glass optical fibers. This materials‐driven approach is validated through the fabrication of temperature sensors, opening the door to a new ...
Yitao Wang, Maxime Cavillon, John Ballato, Thomas Hawkins, Tino Elsmann, Manfred Rothhardt, Rudy Desmarchelier, Guillaume Laffont, Bertrand Poumellec, Matthieu Lancry   +9 more
wiley   +1 more source

Investigation of particle exhaust from EAST divertor

Nuclear Materials and Energy, 2022
Particle control is one of the key issues for steady-state tokamak operation. The density decay time is used to evaluate the capability of the divertor to exhaust particle with all fueling turn off.
B. Cao, L. Wang, Y.W. Yu, G.Z. Zuo, J.S. Hu   +4 more
doaj   +1 more source