Results 21 to 30 of about 337 (131)

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

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

[Retracted] The Application of Immersive Interactive Technology in Animation Teaching

Advances in Multimedia, Volume 2022, Issue 1, 2022., 2022
In order to improve the interactive and immersive effect of animation teaching, this paper applies immersive interactive technology to animation teaching. In the light processing of animation teaching, this paper uses four‐step phase shift and PCA algorithm to process the interference fringes with vibration effects collected by the CCD camera.
Zhiying Sun, Jing Liu, Tao Zhou
wiley   +1 more source

Observation of electrostatic fluctuations driven by runaway electrons in EAST disruptions

Nuclear Fusion, 2023
Electrostatic fluctuations driven by runaway electrons (REs) have been observed following a thermal quench during Experimental Advanced Superconducting Tokamak–intended disruptions, which are triggered by massive gas injection. Electrostatic fluctuations
T. Tang, L. Zeng, Z.Y. Qiu, S.Y. Lin, Y.W. Sun, G.Y. Wei, X. Zhu, D.L. Chen, Y. Huang, Y.M. Duan, L.Q. Xu, H.D. Zhuang, H.Q. Liu, J.P Qian, C.X. Luo, A. Ti, H.L. Zhao, Y.X. Jie, Y.F. Liang, X. Gao   +19 more
doaj   +1 more source

Fluctuation-induced dynamo effect in a magnetic confinement plasma

Physical Review Research, 2023
The electron temperature fluctuation-induced dynamo electric field has been measured in the core of high-temperature EAST tokamak plasmas by Faraday-effect polarimetry and electron cyclotron emission.
W. Z. Mao, W. X. Ding, H. Q. Liu, A. Ti, D. L. Brower, H. Lian, Y. Q. Chu, L. Zeng, H. L. Zhao, L. Zhang, J. P. Qian, Q. Zang, X. Z. Gong, L. Q. Hu, L. Q. Xu, C. Zhou, T. Lan, A. D. Liu, J. L. Xie, G. Zhuang, Y. T. Song, B. N. Wan, J. G. Li   +22 more
doaj   +1 more source

Fast equilibrium reconstruction by deep learning on EAST tokamak

AIP Advances, 2023
A deep neural network is developed and trained on magnetic measurements (input) and EFIT poloidal magnetic flux (output) on the EAST tokamak. In optimizing the network architecture, we use automatic optimization to search for the best hyperparameters ...
Jingjing Lu, Youjun Hu, Nong Xiang, Youwen Sun   +3 more
doaj   +1 more source

Real-time plasma boundary shape reconstruction using visible camera on EAST tokamak

Nuclear Fusion
Accurate plasma shape reconstruction is crucial for the stable operation of tokamak devices. In this study, a plasma optical boundary reconstruction system is constructed on the Experimental Advanced Superconducting Tokamak (EAST), and real-time shape ...
Ming Chen, Qirui Zhang, Bihao Guo, Jianhua Yang, Dalong Chen, Yao Huang, Biao Shen   +6 more
doaj   +1 more source