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 +22 more
doaj +1 more source
Simulation of transition dynamics to high confinement in fusion plasmas [PDF]
, 2014 The transition dynamics from the low (L) to the high (H) confinement mode in magnetically confined plasmas is investigated using a first-principles four-field fluid model.
Madsen, J. +5 more
core +2 more sources
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 +3 more
doaj +1 more source
Dynamics of cold pulses induced by super-sonic molecular beam injection in the EAST tokamak
, 2018 Evolution of electron temperature, electron density and its fluctuation with high spatial and temporal resolutions are presented for the cold pulse propagation induced by super-sonic molecular beam injection (SMBI) in ohmic plasmas in the EAST tokamak ...
Cao, Bin +11 more
core +1 more source
Intermittent electron density and temperature fluctuations and associated fluxes in the Alcator C-Mod scrape-off layer [PDF]
, 2018 The Alcator C-Mod mirror Langmuir probe system has been used to sample data time series of fluctuating plasma parameters in the outboard mid-plane far scrape-off layer. We present a statistical analysis of one second long time series of electron density,
Brunner, Dan +6 more
core +2 more sources
Reversal of particle flux in collisional-finite beta tokamak discharges [PDF]
, 2015 The mixed gradient method [Zhong et al. Phys. Rev. Lett. 111, 265001 (2013)] is adopted and effects of collisions and finite beta are included in the Weiland 9-equation fluid model.
Kritz, A. H. +4 more
core +1 more source
Reconstruction of plasma density profiles by measuring spectra of radiation emitted from oscillating plasma dipoles [PDF]
, 2020 We suggest a new method for characterising non-uniform density distributions of plasma by measuring the spectra of radiation emitted from a localised plasma dipole oscillator excited by colliding electromagnetic pulses.
Chung, Moses +10 more
core +2 more sources
Neutron shielding and activation of the MASTU device and surrounds
, 2014 A significant functional upgrade is planned for the Mega Ampere Spherical Tokamak (MAST) device, located at Culham in the UK, including the implementation of a notably greater neutral beam injection power.
Davis, Andrew +3 more
core +1 more source
Spatiotemporal evolution of runaway electrons from synchrotron images in Alcator C-Mod
, 2018 In the Alcator C-Mod tokamak, relativistic runaway electron (RE) generation can occur during the flattop current phase of low density, diverted plasma discharges.
Embréus, O. +3 more
core +1 more source
Calorimetric Power Measurements in the EAST ECRH System
, 2017 In this paper, the calorimetric power measurement method for electron cyclotron resonance heating system on EAST are presented. This method requires measurement of the water flow through the cooling circuits and the input and output water temperatures in
Hou, Yongzhong +5 more
core +1 more source