Effects observed in numerical simulation of high-beta plasma with hot ions in an axisymmetric mirror machine
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Plasma Physics"
DOI: 10.1017/s0022377824000333
Abstract: We present the results of numerical simulation by two-dimensional hybrid particle-in-cell code of high-beta plasma with hot ions in an axisymmetric mirror machine. Two particular effects are discussed: the self-rotating of plasma with Maxwellian ions… read more here.
Keywords: numerical simulation; plasma hot; high beta; plasma ... See more keywords
Collisionless conduction in a high-beta plasma: a collision operator for whistler turbulence
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Plasma Physics"
DOI: 10.1017/s002237782400151x
Abstract: The regulation of electron heat transport in high-$\beta$, weakly collisional, magnetized plasma is investigated. A temperature gradient oriented along a mean magnetic field can induce a kinetic heat-flux-driven whistler instability (HWI), which back-reacts on the… read more here.
Keywords: plasma; beta; operator whistler; collision operator ... See more keywords
Thermodynamics and collisionality in firehose-susceptible high- $\beta$ plasmas
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Plasma Physics"
DOI: 10.1017/s0022377825100731
Abstract: We study the evolution of collisionless plasmas that, due to their macroscopic evolution, are susceptible to the firehose instability, using both analytic theory and hybrid-kinetic particle-in-cell simulations. We establish that, depending on the relative magnitude… read more here.
Keywords: evolution; thermodynamics; beta plasmas; beta ... See more keywords
Extending the validation of multi-mode model for anomalous transport to high beta poloidal tokamak scenario in DIII-D
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Plasmas"
DOI: 10.1063/1.5010339
Abstract: The Multi-Mode Model (MMM7.1) for anomalous transport is tested in predictive modeling of temperature profiles of a high beta poloidal DIII-D discharge. This new H-mode plasma regime, with high beta poloidal and high bootstrap currents,… read more here.
Keywords: anomalous transport; mode; transport; high beta ... See more keywords
Diagnostic neutral beam injector for active spectroscopy of high beta plasmas
Sign Up to like & getrecommendations! Published in 2024 at "AIP Advances"
DOI: 10.1063/5.0203708
Abstract: The advanced fast ion-dominated high beta plasma is achieved using multi-MW neutral heating beams. To facilitate the diagnostics of this fast ion-dominated plasma, a high-energy and high-current diagnostic neutral beam (DNB) injector was designed and… read more here.
Keywords: spectroscopy; injector; beam; neutral beam ... See more keywords
Two-fluid and finite Larmor radius effects on high-beta tokamak equilibria with flow in reduced magnetohydrodynamics
Sign Up to like & getrecommendations! Published in 2021 at "Physica Scripta"
DOI: 10.1088/1402-4896/abd8a2
Abstract: High-beta tokamak equilibria with flow comparable to the poloidal Alfvén velocity in the reduced magnetohydrodynamics (MHD) model with two-fluid and ion finite Larmor radius (FLR) effects are investigated. The reduced form of Grad-Shafranov equation for… read more here.
Keywords: beta tokamak; two fluid; magnetohydrodynamics; high beta ... See more keywords
Transport modelling of JT-60U and JET plasmas with internal transport barriers towards prediction of JT-60SA high-beta steady-state scenario
Sign Up to like & getrecommendations! Published in 2017 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/aa88de
Abstract: Transport modelling of plasmas with internal transport barriers in JT-60U and JET tokamaks has been carried out using integrated modelling codes TOPICS and CRONOS for the prediction of high-beta steady-state scenario in JT-60SA, which shares… read more here.
Keywords: beta steady; transport; steady state; high beta ... See more keywords
Drift kinetic effects on plasma response in high beta spherical tokamak experiments
Sign Up to like & getrecommendations! Published in 2018 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/aa8e08
Abstract: High $$\beta$$ plasma response to the rotating n=1 external magnetic perturbations is numerically studied and compared with National Spherical Torus eXperiment (NSTX). The hybrid magnetohydrodynamic(MHD)-kinetic modeling shows the drift kinetic effects are important to resolve… read more here.
Keywords: drift kinetic; plasma; plasma response; kinetic effects ... See more keywords
Turbulence in high-beta ASDEX upgrade advanced scenarios
Sign Up to like & getrecommendations! Published in 2018 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/aa9589
Abstract: Recent experiments at ASDEX Upgrade achieve non-inductive operation in full tungsten wall conditions by applying electron cyclotron and neutral beam current drive. These discharges are characterised by a well-measured safety factor profile, which does not… read more here.
Keywords: beta asdex; asdex upgrade; turbulence high; upgrade advanced ... See more keywords
A dimensional approach to affective disorder: The relations between Scl-90 subdimensions and QEEG parameters
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Psychiatry"
DOI: 10.3389/fpsyt.2022.651008
Abstract: Objectives QEEG reflects neuronal activity directly rather than using indirect parameters, such as blood deoxygenation and glucose utilization, as in fMRI and PET. The correlation between QEEG spectral power density and Symptom Check List-90-R may… read more here.
Keywords: spectral power; high beta; power density; disorder ... See more keywords