Results 11 to 20 of about 3,533 (208)

Fuel recycling control in long pulse operation with full tungsten divertors in EAST tokamak

Nuclear Materials and Energy, 2023
Fuel recycling control in long pulse discharges is studied in EAST tokamak with tungsten divertors by particle balance. Double null configuration, proper Resonant Magnetic Perturbation (RMP), divertor cryopumps and realtime lithium injection, are all ...
Yaowei Yu, Deze Zhou, Mizuki Sakamoto, Bin Cao, Guizhong Zuo, Jiansheng Hu   +5 more
doaj   +3 more sources

Realization of thousand-second improved confinement plasma with Super I-mode in Tokamak EAST. [PDF]

Sci Adv, 2023
Song Y, Zou X, Gong X, Becoulet A, Buttery R, Bonoli P, Hoang T, Maingi R, Qian J, Zhong X, Liu A, Li E, Ding R, Huang J, Zang Q, Liu H, Wang L, Zhang L, Li G, Sun Y, Garofalo A, Osborne T, Leonard T, Baek SG, Wallace G, Xu L, Zhang B, Wang S, Chu Y, Zhang T, Duan Y, Lian H, Zhang X, Jin Y, Zeng L, Lyu B, Xiao B, Huang Y, Wang Y, Shen B, Xiang N, Wu Y, Wu J, Wang X, Ding B, Li M, Zhang X, Qin C, Xi W, Zhang J, Huang L, Yao D, Hu Y, Zuo G, Yuan Q, Zhou Z, Wang M, Xu H, Xie Y, Wang Z, Chen J, Xu G, Hu J, Lu K, Liu F, Wu X, Wan B, Li J, EAST Team.   +68 more
europepmc   +2 more sources

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

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

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

Electron‐Scale Reconnection in Three‐Dimensional Shock Turbulence

Geophysical Research Letters, Volume 49, Issue 15, 16 August 2022., 2022
Abstract Magnetic reconnection has been observed in the transition region of quasi‐parallel shocks. In this work, the particle‐in‐cell method is used to simulate three‐dimensional reconnection in a quasi‐parallel shock. The shock transition region is turbulent, leading to the formation of reconnecting current sheets with various orientations.
J. Ng, L.‐J. Chen, N. Bessho, J. Shuster, B. Burkholder, J. Yoo   +5 more
wiley   +1 more source

Implementation and verification of a conservative, multi‐species, gyro‐averaged, full‐f, Lenard‐Bernstein/Dougherty collision operator in the gyrokinetic code GENE‐X

Contributions to Plasma Physics, Volume 62, Issue 5-6, June‐July 2022., 2022
Abstract Gyrokinetic simulations are among the main tools to predict turbulent transport in the core of fusion devices. Unlike the core, the plasma edge and scrape‐off layer are characterized by lower temperature and higher collisionality. To allow for realistic gyrokinetic modelling of edge and scrape‐off layer turbulence, it is crucial to include ...
Philipp Ulbl, Dominik Michels, Frank Jenko   +2 more
wiley   +1 more source

Sensitivity of Microwave Interferometer in the Limiter Shadow to filaments in ASDEX upgrade

Contributions to Plasma Physics, Volume 62, Issue 5-6, June‐July 2022., 2022
Abstract Microwave Interferometer in the Limiter Shadow (MILS) is a new diagnostic, installed on ASDEX Upgrade for electron density measurements in the far Scrape‐Off Layer (SOL). At the chosen frequency of 47 GHz, the region of measurements varies within several centimetres before and after the limiter, depending on the density.
Mariia Usoltceva, Stéphane Heuraux, Ildar Khabibullin, Helmut Faugel, Helmut Fünfgelder, Volodymyr Bobkov, ASDEX Upgrade Team   +6 more
wiley   +1 more source