Results 11 to 20 of about 40,562 (292)

Steady-state burning plasma: a new stage in the development of magnetic confinement fusion energy. [PDF]

Natl Sci Rev, 2023
Wan B, Xu G.
europepmc   +2 more sources

Validation of the plasma-wall self-organization model for density limit in ECRH-assisted start-up of Ohmic discharges on J-TEXT

Nuclear Fusion, 2023
A recently developed plasma-wall self-organization model (Escande et al 2022 Nucl. Fusion 62 026001) predicts a significantly enhanced density limit, which may be attainable in tokamaks with ECRH-assisted Ohmic start-up and sufficiently high initial ...
Jiaxing Liu, Ping Zhu, Dominique Franck Escande, Junli Zhang, Donghui Xia, Yuhan Wang, Jiaming Wang, Qinghu Yang, Jiangang Fang, Xiaoqing Zhang, Li Gao, Zhifeng Cheng, Zhipeng Chen, Zhoujun Yang, Zhongyong Chen, Yonghua Ding, Yuan Pan, the J-TEXT Team   +17 more
doaj   +1 more source

Breakdown of adiabatic invariance in spherical tokamaks [PDF]

, 2001
Thermal ions in spherical tokamaks have two adiabatic invariants: the magnetic moment and the longitudinal invariant. For hot ions, variations in magnetic-field strength over a gyro period can become sufficiently large to cause breakdown of the adiabatic
Alfvén H., Arnold V. I., Johan Carlsson, Peng Y.-K. M., Peng Y.-K. M.   +4 more
core   +2 more sources

IDP-PGFE: an interpretable disruption predictor based on physics-guided feature extraction

Nuclear Fusion, 2023
Disruption prediction has made rapid progress in recent years, especially in machine learning (ML)-based methods. If a disruption prediction model can be interpreted, it can tell why certain samples are classified as disruption precursors. This allows us
C. Shen, W. Zheng, Y. Ding, X. Ai, F. Xue, Y. Zhong, N. Wang, L. Gao, Z. Chen, Z. Yang, Z. Chen, Y. Pan, J-TEXT team   +12 more
doaj   +1 more source

Contribution to fusion research from IAEA coordinated research projects and joint experiments [PDF]

, 2015
The paper presents objectives and activities of IAEA Coordinated Research Projects 'Conceptual development of steady-state compact fusion neutron sources' and 'Utilisation of a network of small magnetic confinement fusion devices for mainstream fusion ...
A. Melnikov, B.N. Kuteev, G. Van Oost, J. Stöckel, M. Gryaznevich, null null, R. Kamendje, T. Popov, V. Svoboda   +8 more
core   +2 more sources

Impact of strong magnetic fields on collision mechanism for transport of charged particles [PDF]

, 2012
One of the main applications in plasma physics concerns the energy production through thermo-nuclear fusion. The controlled fusion is achieved by magnetic confinement i.e., the plasma is confined into a toroidal domain (tokamak) under the action of huge ...
Bostan, Mihai, Gamba, Irene M.
core   +2 more sources

Progress of the electron cyclotron resonance heating system and the related experiments on J-TEXT [PDF]

EPJ Web of Conferences
To augment the capabilities of the J-TEXT tokamak, efforts were undertaken in 2017 to commence the construction of an electron cyclotron resonance heating (ECRH) system.
Xia Donghui, Chen Xixuan, Li Jingtao, Wang Ruomu, Zheng Wei   +4 more
doaj   +1 more source

Layer-structured Cr/Cr x N coating via electroplating-based nitridation achieving high deuterium resistance as the hydrogen permeation barrier

Journal of Advanced Ceramics, 2022
Hydrogen isotope permeation through structural materials is a key issue for developing nuclear fusion energy, which will cause fuel loss and radioactive pollution.
Liyu Zheng, Heping Li, Jun Zhou, Xinluo Tian, Zhongyang Zheng, Long Wang, Xinyun Wang, Youwei Yan   +7 more
doaj   +1 more source

Control of stochasticity in magnetic field lines [PDF]

, 2005
We present a method of control which is able to create barriers to magnetic field line diffusion by a small modification of the magnetic perturbation. This method of control is based on a localized control of chaos in Hamiltonian systems.
Chandre, Cristel, Ciraolo, Guido, Ghendrih, Philippe, Lima, Ricardo, Vittot, Michel   +4 more
core   +6 more sources

Disruption prediction for future tokamaks using parameter-based transfer learning

Communications Physics, 2023
Tokamaks are the most promising way for nuclear fusion reactors. Disruption in tokamaks is a violent event that terminates a confined plasma and causes unacceptable damage to the device.
Wei Zheng, Fengming Xue, Zhongyong Chen, Dalong Chen, Bihao Guo, Chengshuo Shen, Xinkun Ai, Nengchao Wang, Ming Zhang, Yonghua Ding, Zhipeng Chen, Zhoujun Yang, Biao Shen, Bingjia Xiao, Yuan Pan   +14 more
doaj   +1 more source