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Improved neoclassical plasma confinement and turbulence suppression in a magnetic well in tokamak reactors

期刊: NUCLEAR FUSION, 2021; 61 (9)

It has been known that the width of the trapped particles, i.e. bananas, is reduced or squeezed in a magnetic well in tokamaks. The magnetic squeezing......

The role of 3D fields on runaway electron mitigation in ASDEX Upgrade: a numerical test particle approach

期刊: NUCLEAR FUSION, 2021; 61 (6)

The data collected during ASDEX Upgrade experiments in which external 3D fields have been deployed in the attempt of mitigating runaway electrons (RE)......

Gyrokinetic simulation of low-frequency Alfvenic modes in DIII-D tokamak

期刊: NUCLEAR FUSION, 2021; 61 (6)

Global gyrokinetic simulations find that a beta-induced Alfven eigenmode (BAE) and a low-frequency mode (LFM) co-exist in the DIII-D tokamak experimen......

A new tool GSEQ-FRC for two-dimensional field-reversed configuration equilibrium

期刊: NUCLEAR FUSION, 2021; 61 (8)

A new tool (GSEQ-FRC) is developed for solving two-dimensional equilibrium of the field-reversed configuration (FRC) based on fixed boundary and free ......

Observation of off-axis sawtooth oscillations during the presence of nonlinear mode couplings in HL-2A NBI heated plasmas

期刊: NUCLEAR FUSION, 2021; 61 (9)

Off-axis sawtooth oscillations during the presence of nonlinear coupling between toroidal Alfven eigenmodes (TAEs) and tearing mode are firstly observ......

Simulations of the radial electric field induced by neutral beam injection in a tokamak

期刊: NUCLEAR FUSION, 2021; 61 (8)

A model based on Poisson's equation has been proposed to study the radial electric field induced by neutral beam injection (NBI). The radial electric ......

Characteristics of double-peaked particle deposition at divertor target plates in the EAST tokamak

期刊: NUCLEAR FUSION, 2021; 61 (9)

Increasing the heat and particle deposition on the divertor target plates is an effective approach for reducing the extremely high heat load. Future t......

Experiment data-driven modeling of tokamak discharge in EAST

期刊: NUCLEAR FUSION, 2021; 61 (6)

A neural network model of tokamak discharge is developed based on the experimental dataset of a superconducting long-pulse tokamak (EAST) campaign 201......

Real-time prediction of high-density EAST disruptions using random forest

期刊: NUCLEAR FUSION, 2021; 61 (6)

A real-time disruption predictor using random forest was developed for high-density disruptions and used in the plasma control system (PCS) of the EAS......

Plasma initiation and preliminary magnetic control in the HL-2M tokamak

期刊: NUCLEAR FUSION, 2021; 61 (8)

The first plasmas have been achieved in the HL-2M tokamak by fulfilling the usual criteria for plasma breakdown, i.e. optimal working gas pressure, fi......

Dependence of blistering and deuterium retention on damage depth in damaged tungsten exposed to deuterium plasma

期刊: NUCLEAR FUSION, 2021; 61 (5)

The effect of different damage depth on blistering and deuterium (D) retention has been investigated in heavy-ion-damaged tungsten (W) with exposure t......

Investigation of Alfven eigenmodes and energetic particle modes in EAST with neutral beam injection

期刊: NUCLEAR FUSION, 2021; 61 (7)

Alfven eigenmodes (AEs) and energetic particle modes (EPMs) have been observed in EAST neutral beam injection plasma with the presence of heavy tungst......

Excitation of zonal flow by intermediate-scale toroidal electron temperature gradient turbulence

期刊: NUCLEAR FUSION, 2021; 61 (6)

On the basis of gyrokinetic theory, we derive nonlinear equations for the zonal flow (ZF) generation in intermediate-scale electron temperature gradie......

Integrated ELM and divertor power flux control using RMPs with low input torque in EAST in support of the ITER research plan

期刊: NUCLEAR FUSION, 2021; 61 (10)

Experiments have been carried out at the EAST tokamak to study ITER-relevant scenario integration issues, related to edge localized mode (ELM) control......

Density scaling of error field penetration in radio-frequency-dominant heating plasmas in the EAST tokamak

期刊: NUCLEAR FUSION, 2021; 61 (5)

The density scaling of n = 1 error field penetration is investigated under radio-frequency (RF)-dominant heated L-mode discharges in the EAST tokamak.......

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