TorbeamNN: Machine learning based steering of ECH mirrors on KSTARWe have developed TorbeamNN: a machine learning surrogate model for the TORBEAM ray tracing code to predict electron cyclotron heating and current drive locations in tokamak plasmas. TorbeamNN…Andrew Rothstein, Minseok Kim, Minho Woo et al.·Apr 15, 2025SaveLearn
Effective Field Theories in MagnetohydrodynamicsWe briefly review the recent developments in magnetohydrodynamics, which in particular deal with the evolution of magnetic fields in turbulent plasmas. We especially emphasize (i) the necessity of…Amir Jafari·Apr 14, 2025SaveLearn
Revisiting Fusion in D-3He Plasmas With Spin-Polarized FuelSpin-polarized fuel (SPF) is recognized for enhancing fusion reactivity, but it could provide other advantages particularly relevant to advanced fusion fuels. In this work, we calculate how SPF in…J. F. Parisi, A. Diallo, S. Meschini·Apr 14, 2025SaveLearn
Theory of zonal flow growth and propagation in toroidal geometryThe toroidal geometry of tokamaks and stellarators is known to play a crucial role in the linear physics of zonal flows, leading to e.g. the Rosenbluth-Hinton residual and geodesic acoustic modes.…Richard Nies, Felix Parra·Apr 14, 2025SaveLearn
Validation of FLASH for magnetically driven inertial confinement fusion target designFLASH is a widely available radiation magnetohydrodynamics code used for astrophysics, laboratory plasma science, high energy density physics, and inertial confinement fusion. Increasing interest in…C. Leland Ellison, Jonathan Carroll-Nellenback, Chiatai Chen et al.·Apr 14, 2025SaveLearn
Affordable, manageable, practical, and scalable (AMPS) high-yield and high-gain inertial fusionHigh-yield inertial fusion offers a transformative path to affordable clean firm power and advanced defense capabilities. Recent milestones at large facilities, particularly the National Ignition…Andrew Alexander, Laura Robin Benedetti, Indrani Bhattacharyya et al.·Apr 14, 2025SaveLearn
Why Cold BGK Modes Are So Cool: Dispersion Relations from Orbit-Constrained Distribution FunctionsWe derive analytic dispersion relations for cold, orbitally constrained systems governed by the Vlasov equation. For magnetized plasmas, we obtain the first explicit relation for two-dimensional…Mikael Tacu·Apr 14, 2025SaveLearn
Conservative projection-based data-driven model order reduction of a fluid-kinetic spectral solverKinetic simulations are computationally intensive due to six-dimensional phase space discretization. Many kinetic spectral solvers use the asymmetrically weighted Hermite expansion due to its…Opal Issan, Oleksandr Koshkarov, Federico D. Halpern et al.·Apr 13, 2025SaveLearn
A relativistic model for Quantum PlasmasA new model to study the dynamics of relativistic quantum plasmas using the quantum electrodynamical (QED) approach has been constructed to analyze the quantum effects, relativistic corrections, and…Priya Mishra, Punit Kumar·Apr 12, 2025SaveLearn
Nonlocal effects on Thermal Transport in MagLIF-Relevant Gaspipes on NIFWe present simulations of heat flow relevant to gaspipe experiments on the National Ignition Facility (NIF) to investigate kinetic effects on transport phenomena. D2 and neopentane (C5H12) filled…R. Y. Lau, D. J. Strozzi, M. Sherlock et al.·Apr 12, 2025SaveLearn
Direct Comparison of Gyrokinetic and Fluid Scrape-Off Layer SimulationsTypically, fluid simulations are used for tokamak divertor design. However, fluid models are only valid if the SOL is highly collisional, an assumption that is valid in many present day experiments…A. Shukla, J. Roeltgen, M. Kotschenreuther et al.·Apr 11, 2025SaveLearn
Overcoming Discharge Inhibition in n-Butane Oxidation: Two-Component BaTiO3 and Mn-Cu Mixed Oxide CoatingsA twin surface dielectric barrier discharge on the microsecond scale was used in combination with a two-component coating to oxidize 300 ppm n-butane as a model volatile organic compound to CO2 and…Timothy Oppotsch, Christian Oberste-Beulmann, Alexander Böddecker et al.·Apr 11, 2025SaveLearn
Scenarios for magnetic X-point collapse in 2D incompressible dissipationless extended magnetohydrodynamicsThe equations of 2D incompressible dissipationless extended magnetohydrodynamics (XMHD) extend the equations of incompressible Hall MHD (HMHD) by retaining finite-electron inertia. These XMHD…Alain J. Brizard·Apr 9, 2025SaveLearn
Transient population dynamics of nanoparticles during pulsed EUV exposuresThe transient population dynamics of charged (postive or negative) and neutral nanoparticles have been investigated in a pulsed Extreme Ultra-Violet (EUV) exposure environment with 3DPIC simulations.…M. Chaudhuri, L. C. J. Heijmans, A. M. Yakunin et al.·Apr 8, 2025SaveLearn
Spin Dynamics in Rotating Quantum Plasmas: Coupled EPI Dispersion and Solitary wave analysisThe propagation of an electrostatic wave in a three-component e-p-I astrophysical quantum plasma in a rotating frame has been studied, taking into account the particle spin, Fermi pressure, and…Atherv Saxena, Punit Kumar·Apr 8, 2025SaveLearn
Survey of the Edge Radial Electric Field in L-mode TCV Plasmas using Doppler BackscatteringA Doppler backscattering (DBS) diagnostic has recently been installed on the Tokamak à Configuration Variable (TCV) to facilitate the study of edge turbulence and flow shear in a versatile…Sascha Rienäcker, Pascale Hennequin, Laure Vermare et al.·Apr 8, 2025SaveLearn
Non-Maxwellianity of Ion Velocity Distributions in the Earth's MagnetosheathWe analyze the deviations from local thermodynamic equilibrium (LTE) of the ion velocity distribution function (iVDF) in collisionless plasma turbulence. Using data from the Magnetospheric Multiscale…Louis Richard, Sergio Servidio, Ida Svenningsson et al.·Apr 7, 2025SaveLearn
A simple, accurate model for detachment accessIn next-step fusion tokamaks such as SPARC and ITER, achieving high levels of scrape-off-layer power dissipation will be essential to protect the divertor while maintaining good core plasma…Thomas Body, Arne Kallenbach, Thomas Eich·Apr 7, 2025SaveLearn
Coupling of Alfvén and magnetosonic waves in rotating Hall magnetoplasmasWe study the linear theory of magnetohydrodynamic (MHD) waves, namely the Alfvén and the fast and slow magnetosonic modes in a rotating Hall-MHD plasma with the effects of the obliqueness of the…A. P. Misra, R. Dey, V. Krishan·Apr 7, 2025SaveLearn
A kinetic CMA diagramWe present a kinetic Clemmow-Mullaly-Allis (CMA) diagram by systematically analysing the kinetic effects on the wave propagation in a homogeneous thermal plasma. The differences between the cold and…Zilong Li, Haotian Chen, Zhe Gao et al.·Apr 7, 2025SaveLearn
Dispersion in Rotating Electron-Positron-Ion Quantum PlasmaQuantum plasmas in astrophysical environments are abundant due to extreme electric, magnetic, and gravitational fields. These plasmas can be most clearly observed in neutron stars, white dwarfs,…Atherv Saxena, Sudeep Nadgambe, Rajan Mishra et al.·Apr 7, 2025SaveLearn
Anisotropic particle acceleration in Alfvénic turbulenceAlfvénic turbulence is an effective mechanism for particle acceleration in strongly magnetized, relativistic plasma. In this study, we investigate a scenario where turbulent plasma is influenced by a…Cristian Vega, Stanislav Boldyrev, Vadim Roytershteyn·Apr 6, 2025SaveLearn
First-principles analysis of the warm dense plasma jets in Double-Cone Ignition experimentsDouble-Cone Ignition (DCI) differs from the traditional laser-driven inertial confinement fusions by relying on gold cones for transverse filtering to achieve warm dense plasma, thereby reducing the…N. -Y. Shi, J. -H. Liang, C. -J. Mo et al.·Apr 6, 2025SaveLearn
Scaling of energy delivered through an electrostatic discharge to a small series loadWe study the energy delivered through a small-resistance series ``victim'' load during electrostatic discharge events in air. For gap lengths over 1~mm, the fraction of the stored energy…Claudia A. M. Schrama, Calvin Bavor, John W. Rose et al.·Apr 5, 2025SaveLearn
Phase-Matched Harmonic Generation in Strongly Magnetized PlasmaHarmonic generation in underdense spatially homogeneous plasma is generally expected to be inefficient: in an unmagnetized uniform plasma the fundamental and its harmonics cannot be phase-matched,…S. Cao, M. R. Edwards·Apr 5, 2025SaveLearn