Magnetic Reconnection on a Klein BottleWe present a new boundary condition for simulations of magnetic reconnection based on the topology of a Klein bottle. When applicable, the new condition is computationally cheaper than fully periodic…Luke Xia, M. Swisdak·Jul 19, 2024SaveLearn
Pseudoatom Molecular Dynamics Plasma MicrofieldsSpectral line profiles are powerful diagnostic tools for both laboratory and astrophysical plasmas, as their shape is sensitive to the plasma environment. The low-frequency component of the electric…J. R. White, C. J. Fontes, M. C. Zammit et al.·Jul 19, 2024SaveLearn
Ray tracing methods for wave propagation in moving anisotropic media : application to magnetized plasmasThe propagation of a wave in a medium is generally affected when the medium is moving with respect to the observer. Because plasma equilibria often involve plasma flows, for instance in astrophysics…Aymeric Braud, Julien Langlois, Renaud Gueroult·Jul 19, 2024SaveLearn
Adapted Swin Transformer-based Real-Time Plasma Shape Detection and Control in HL-3In the field of magnetic confinement plasma control, the accurate feedback of plasma position and shape primarily relies on calculations derived from magnetic measurements through equilibrium…Qianyun Dong, Zhengwei Chen, Rongpeng Li et al.·Jul 19, 2024SaveLearn
Ionization Dynamics in Intense Laser-Produced PlasmasThe ionization dynamic of argon plasma irradiated by an intense laser is investigated to understand transient physics in dynamic systems. This study demonstrates that significant delayed ionization…M. S. Cho, A. L. Milder, W. Rozmus et al.·Jul 18, 2024SaveLearn
Deriving improved plasma fluid equations from collisional kinetic theoryDeveloping a quantitative understanding of wave plasma processes in the lower ionosphere requires a reasonably accurate theoretical description of the underlying physical processes. For such highly…Y. S. Dimant·Jul 18, 2024SaveLearn
Design of a Thomson scattering diagnostic for the SMART tokamakWe describe the design of a Thomson scattering (TS) diagnostic to be used on the SMall Aspect Ratio Tokamak (SMART). SMART is a spherical tokamak being commissioned in Spain that aims to explore…M. Kaur, A. Diallo, B. LeBlanc et al.·Jul 18, 2024SaveLearn
The separatrix operational space of next-step fusion experiments: From ASDEX Upgrade data to SPARC scenariosFusion power plants require ELM-free, detached operation to prevent divertor damage and erosion. The separatrix operational space (SepOS) is proposed as a tool for identifying access to the type-I…Thomas Eich, Thomas Body, Michael Faitsch et al.·Jul 18, 2024SaveLearn
Simulating the Impact of Baffling on Divertor Performance Using SOLPS-ITERStrong divertor baffling is a feature expected to have a number of advantages for core-edge integration in tokamaks, yet one which requires much more detailed and extensive study. In this work, the…Cyd Cowley, David Moulton, Bruce Lipschultz·Jul 18, 2024SaveLearn
Synchrotron-driven instabilities in relativistic plasmas of arbitrary opacityRecent work has shown that synchrotron emission from relativistic plasmas leads the electron distribution to form an anisotropic ring in momentum space, which can be unstable to both kinetic and…Ian E. Ochs·Jul 18, 2024SaveLearn
Validation of the static forward Grad-Shafranov equilibrium solvers in FreeGSNKE and Fiesta using EFIT++ reconstructions from MAST-UA key aspect in the modelling of magnetohydrodynamic (MHD) equilibria in tokamak devices is having access to fast, accurate, and stable numerical simulation methods. There is an increasing demand for…K. Pentland, N. C. Amorisco, O. El-Zobaidi et al.·Jul 17, 2024SaveLearn
Investigation of triangularity effects on tokamak edge turbulence through multi-fidelity gyrokinetic simulationsThis paper uses the gyro-moment (GM) approach as a multi-fidelity tool to explore the effect of triangularity on tokamak edge turbulence. Considering experimental data from an L-mode DIII-D…A. C. D. Hoffmann, P. Ricci·Jul 17, 2024SaveLearn
Numerical simulation of a helium Plasma-Material Interaction experiment in GyM linear device through SOLPS-ITER and ERO2.0 codesLearning how to safely handle Plasma-Material Interaction (PMI) is a key challenge towards the commercialisation of energy from nuclear fusion. In this respect, linear plasma devices are ideal…F. Mombelli, G. Alberti, E. Tonello et al.·Jul 17, 2024SaveLearn
Evolution of the Radiative Thermal Instability in a Confined MediumThermally bistable fluid tends to self-organize into clouds of hot and cold material, which are internally uniform and separated by thin conduction fronts. The evolution of these clouds has been…Henry Fetsch, Nathaniel J. Fisch·Jul 16, 2024SaveLearn
Impact of spatially varying transport coefficients in EMC3-Eirene simulations of W7-X and assessment of driftsModelling the scrape-off layer of a stellarator is challenging due to the complex magnetic 3D geometry. The here presented study analyses simulations of the scrape-off layer (SOL) of the stellarator…David Bold, Felix Reimold, Holger Niemann et al.·Jul 16, 2024SaveLearn
Coupling Fluid Plasma and Kinetic Neutral Models using Correlated Monte Carlo MethodsWhile boundary plasmas in present-day tokamaks generally fall in a fluid regime, neutral species near the boundary often require kinetic models due to long mean-free-paths compared to characteristic…Gregory J. Parker, Maxim V. Umansky, Benjamin D. Dudson·Jul 15, 2024SaveLearn
Simultaneous Proton and Electron Energization during Macroscale Magnetic ReconnectionThe results of simulations of magnetic reconnection accompanied by electron and proton heating and energization in a macroscale system are presented. Both species form extended powerlaw distributions…Zhiyu Yin, James F. Drake, Marc Swisdak·Jul 15, 2024SaveLearn
Global destabilization of drift-tearing mode with coupling to discretized electron drift-wave instabilityThe global linear behaviors of 2/1 DTM in the collisional regime are investigated based on a concisely resistive drift-MHD model. Besides DTM, extra normal modes including EDW and SAW are coupled…J. Bao, W. L. Zhang, Z. Lin et al.·Jul 15, 2024SaveLearn
Electrostatic Bursts Generated by the Ion-Ion Acoustic Instability with Solar Wind Plasma ParametersThis study is motivated by recent observations from the Parker Solar Probe (PSP) mission, which have been identified as the ion-acoustic waves from 15 to 25 solar radii. These observations reveal…Mahmoud Saad Afify, Jürgen Dreher, Kevin Schoeffler et al.·Jul 15, 2024SaveLearn
DeepCSNet: a deep learning method for predicting electron-impact doubly differential ionization cross sectionsElectron-impact ionization cross sections of atoms and molecules are essential for plasma modelling. However, experimentally determining the absolute cross sections is not easy, and ab initio…Yifan Wang, Linlin Zhong·Jul 13, 2024SaveLearn
Sunbeam: Near-Sun Statites as Beam Platforms for Beam-Driven RocketsWe outline a method of beamed power for propulsion that utilizes relativistic electron beams. The physics of charged particle beam propagation in the space plasma environment is discussed and the…Jeffrey K. Greason, Gerrit Bruhaug·Jul 12, 2024SaveLearn
Electron Tail Suppression and Effective Collisionality due to Synchrotron Emission and Absorption in Mildly Relativistic PlasmasSynchrotron radiation losses are a significant cause of concern for high-temperature aneutronic fusion reactions such as proton-Boron 11. The fact that radiation losses occur primarily in the…Ian E. Ochs, Mikhail E. Mlodik, Nathaniel J. Fisch·Jul 12, 2024SaveLearn
Outstanding questions and future research of magnetic reconnectionThis short article highlights the unsolved problems of magnetic reconnection in collisionless plasma. The advanced in-situ plasma measurements and simulations enabled scientists to gain a novel…R. Nakamura, J. L. Burch, J. Birn et al.·Jul 12, 2024SaveLearn
Self-organized multiscale structures in thermally relativistic electron-positron-ion plasmasThe self-organization of a thermally relativistic magnetized plasma comprising of electrons, positrons and static ions is investigated. The self-organized state is found to be the superposition of…Usman Shazad, M. Iqbal, Shafa Ullah·Jul 12, 2024SaveLearn
Multiscale structures in three species magnetoplasmas with two positive ionsThe self-organization in a multi-ion plasma composed of electrons and two species of positively charged ions is investigated. It is shown that when canonical vorticities and velocities of all the…Shafa Ullah, Usman Shazad, M. Iqbal·Jul 12, 2024SaveLearn