Results 11 to 20 of about 515,702 (289)
Methodology of Plasma Shape Reachability Area Estimation in D-Shaped Tokamaks
Mathematics, 2022 This paper suggests and develops a new methodology of estimation for a multivariable reachability region of a plasma separatrix shape on the divertor phase of a plasma discharge in D-shaped tokamaks.
Yuri V. Mitrishkin +2 more
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Magnetic control of tokamak plasmas through deep reinforcement learning [PDF]
Nature, 2022 AbstractNuclear fusion using magnetic confinement, in particular in the tokamak configuration, is a promising path towards sustainable energy. A core challenge is to shape and maintain a high-temperature plasma within the tokamak vessel. This requires high-dimensional, high-frequency, closed-loop control using magnetic actuator coils, further ...
Jonas Degrave +30 more
openaire +2 more sources
A Very Deep Densely Connected Network for Compressed Sensing MRI
IEEE Access, 2019 Convolutional neural network (CNN) has achieved great success in the compressed sensing-based magnetic resonance imaging (CS-MRI). Latest deep networks for CS-MRI usually consist of a stack of sub-networks, each of which refines the former image ...
Kun Zeng +3 more
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Study on energy extraction in the process of combustion plasma plume deflection controlled by MHD
Energy Reports, 2022 This paper presents a new method of extracting electric energy in the process of realizing thrust vector by magnetron gas plasma. Based on the model scramjet, the combustion plasma scheme is adopted, during the experiment, Cs2CO3 was put into a high ...
Kai Zhao, Yongji Lu, Feng Li
doaj +1 more source
Magnetic control of DTT alternative plasma configurations
Fusion Engineering and Design, 2023 One of the main challenges concerning next generation tokamaks (such as DEMO) will be the development of a heat and power exhaust system able to withstand the large loads expected in the divertor region. A dedicated Divertor Tokamak Test (DTT) facility has been proposed in the EUROfusion Roadmap, with the aim of testing unconventional solutions, such ...
Acampora E. +3 more
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Current-driven filamentation upstream of magnetized relativistic collisionless shocks [PDF]
, 2014 The physics of instabilities in the precursor of relativistic collisionless shocks is of broad importance in high energy astrophysics, because these instabilities build up the shock, control the particle acceleration process and generate the magnetic ...
Gremillet, L. +3 more
core +2 more sources
Ion velocity distributions in helicon wave plasmas: Magnetic field and pressure effects [PDF]
, 1993 Consideration of ion transport in high density, low pressure plasma systems is important for meeting process requirements in the manufacturing of ultra-large-scale integrated circuits.
Giapis, K. P. +4 more
core +1 more source
Nuclear Fusion, 2022 The divertor biasing technique offers a promising alternative to control the edge localized mode (ELM) as well as the divertor heat load in tokamaks, as compared to the resonant magnetic perturbation (RMP) generated by magnetic coils.
G.Z. Hao +19 more
doaj +1 more source
Plasma Magnetic Control in Tokamak Devices [PDF]
Journal of Fusion Energy, 2018 In tokamak experimental reactors, the magnetic control system is one of the main plasma control systems that is required, together with the density control, since the very beginning, even before first operations. Indeed, the magnetic control drives the current in the external poloidal circuits in order to first achieve the breakdown conditions and ...
openaire +3 more sources
Control of unsteady laser-produced plasma-flow with a multiple-coil magnetic nozzle
Scientific Reports, 2017 We report an experimental demonstration of controlling plasma flow direction with a magnetic nozzle consisting of multiple coils. Four coils are controlled separately to form an asymmetric magnetic field to change the direction of laser-produced plasma ...
Taichi Morita +14 more
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