Results 11 to 20 of about 91,764 (228)
Nuclear Fusion, 2022 Experiments on the high field spherical tokamak ST40 have led to the recent observation of interplay between beam-driven modes of sweeping frequency (chirping modes) and transitions to the enhanced global confinement regime (H-mode) and back to the low ...
J. Bland +6 more
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Molecules, 2021 In this study, time-dependent, one-dimensional modeling of a surface dielectric barrier discharge (SDBD) device, driven by a sinusoidal voltage of amplitude 1–3 kV at 20 kHz, in argon is described. An SDBD device with two Cu-stripe electrodes, covered by
Taj Muhammad Khan +3 more
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Perturbative analysis of low-frequency instabilities in high-field ST40 experiments
Nuclear Fusion, 2023 Linear and nonlinear perturbative analyses of low-frequency instabilities are presented for ST40 spherical torus high field plasmas, with simultaneous neutral beam heating due to two tangential sources at 25 keV and 55 keV.
V.N. Duarte +9 more
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Evaluation of the functional acceptability of the ITER vacuum vessel
Nuclear Fusion, 2022 The International Thermonuclear Experimental Reactor (ITER) vacuum vessel (VV) is one of the critical components of the ITER tokamak fusion reactor. The first sector of the ITER VV was delivered to ITER Organization in 2020, and it is ready to assemble ...
Hokyu Moon +3 more
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Nuclear Fusion, 2022 The ion orbit loss (IOL) can drive the bulk ions co-current rotation at the edge of the tokamak plasmas. The effect of triangularity on the IOL is investigated by using an analytical tokamak equilibrium model for the shaped plasmas.
Ruoying Wang, Chengkang Pan
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Plasma, 2022 This paper describes a family of relatively simple numerical models for calculation of asymmetric electromagnetic (EM) loads at all tokamak structures and coils at asymmetric vertical plasma displacement events (AVDE). Unlike currently known AVDE studies
Sergey Sadakov +3 more
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Plasma Equilibrium in Tokamaks [PDF]
Fusion Science and Technology, 2006 This lecture treats the magnetohydrodynamic (MHD) equilibrium of axisymmetric plasmas, as given by the Grad-Shafranov equation.
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In-situ Low Power Tests of the ASDEX Upgrade ECRH Transmission Lines [PDF]
EPJ Web of ConferencesAn Electron Cyclotron Resonance Heating (ECRH) system employing 8 gyrotrons is in routine operation at the ASDEX Upgrade tokamak at IPP Garching. The gyrotrons are of two-frequency type operating at 105 and 140 GHz with a maximum output power of up to 1 ...
Wagner Dietmar +5 more
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On mechanisms of impurity leakage and retention in the tokamak divertor
Plasma Physics and Controlled Fusion, 2019 Impurity seeding into a tokamak divertor for radiative cooling is considered as a tool for achieving detached/semi-detached regimes required to meet the condition of acceptable heat loads on divertor plates.
I. Senichenkov +8 more
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MHD Instabilities in Tokamaks [PDF]
Fusion Science and Technology, 2006 A general introduction to ideal magnetohydrodynamic (MHD) stability of tokamak plasmas is given, using linear perturbations of the ideal MHD equations.
openaire +3 more sources