High Order Free Boundary MHD Equilibria in DESCIn this work we consider the free boundary inverse equilibrium problem for 3D ideal MHD. We review boundary conditions for both fixed and free boundary solutions and under what circumstances a sheet…Rory Conlin, Jonathan Schilling, Daniel W. Dudt et al.·Dec 7, 2024SaveLearn
Thermal instability and multiphase dynamics in the ISM with polybaric pressure effectsIn this work, we have carried out a two-dimensional (2D) simulation of thermal instability (TI) in interstellar matter (ISM), considering it to be a weakly ionised inviscid plasma with radiation…Hitendra Sarkar, Madhurjya P. Bora·Dec 6, 2024SaveLearn
Detection of Surface Waves During Femtosecond FilamentationUltrashort pulsed lasers (USPL) can produce thin columns of plasma in air via femtosecond filamentation, and these plasmas have been found to generate broadband TeraHertz (THz) and Radio Frequency…Travis Garrett, Anna Janicek, J. Todd Fayard et al.·Dec 6, 2024SaveLearn
Space Time Algebra Formulation of Cold Magnetized PlasmasThe propagation and scattering of electromagnetic waves in magnetized plasmas in a state where a global mode has been established or is in turbulence, are of theoretical and experimental interest in…Kyriakos Hizanidis, Efstratios Koukoutsis, Panagiotis Papagiannis et al.·Dec 6, 2024SaveLearn
Stochastic modeling of blob-like plasma filaments in the scrape-off layer: Time-dependent velocities and pulse stagnationA stochastic model for a super-position of uncorrelated pulses with a random distribution of and correlations between amplitudes and velocities is analyzed. The pulses are assumed to move radially…O. Paikina, J. M. Losada, A. Theodorsen et al.·Dec 6, 2024SaveLearn
Drift-cyclotron loss-cone instability in 3D simulations of a sloshing-ion simple mirrorThe kinetic stability of collisionless, sloshing beam-ion (45° pitch angle) plasma is studied in a 3D simple magnetic mirror, mimicking the Wisconsin High-temperature superconductor Axisymmetric…Aaron Tran, Samuel J. Frank, Ari Y. Le et al.·Dec 5, 2024SaveLearn
Near-ideal relaxed MHD in slab geometryWe investigate the solutions of the relaxed MHD model (RxMHD) of Dewar \& Qu [J. Plasma Phys. 88, 835880101 (2022)]. This model generalizes Taylor relaxation by including the ideal Ohm's…Arash Tavassoli, Stuart R. Hudson, Zhisong Qu et al.·Dec 5, 2024SaveLearn
Positive streamer discharge simulations in humid air: uncertainty in input data and sensitivity analysisWe study how the choice of input data affects simulations of positive streamers in humid air, focusing on H2O cross sections, photoionization models, and chemistry sets. Simulations are performed in…Baohong Guo, Hemaditya Malla, Alejandro Malagon-Romero et al.·Dec 5, 2024SaveLearn
On unipolar and bipolar HiPIMS pulse configurations to enhance energy flux to insulating surfacesHigh-power impulse magnetron sputtering (HiPIMS) delivers a high target power in short pulses, enhancing the ionization and energy of sputtered atoms and providing thus more possibilities to control…M. Farahani, T. Kozák, A. D. Pajdarová et al.·Dec 5, 2024SaveLearn
Validation of NSFsim as a Grad-Shafranov Equilibrium Solver at DIII-DPlasma shape is a significant factor that must be considered for any Fusion Pilot Plant (FPP) as it has significant consequences for plasma stability and core confinement. A new simulator, NSFsim,…Randall Clark, Maxim Nurgaliev, Eduard Khayrutdinov et al.·Dec 5, 2024SaveLearn
Distortions in Charged-Particle Images of Laser Direct-Drive Inertial Confinement Fusion ImplosionsEnergetic charged particles generated by inertial confinement fusion (ICF) implosions encode information about the spatial morphology of the hot-spot and dense fuel during the time of peak fusion…P. V. Heuer, J. L. Peebles, J. Kunimune et al.·Dec 4, 2024SaveLearn
Non-linear MHD modelling of shattered pellet injection in ASDEX UpgradeShattered pellet injection (SPI) is selected for the disruption mitigation system in ITER, due to deeper penetration, expected assimilation efficiency and prompt material delivery. This article…W. Tang, M. Hoelzl, M. Lehnen et al.·Dec 4, 2024SaveLearn
CT-imaging in Electrostatic Thruster Ion-OpticsThe ion-optic grid-system is the essential part of electrostatic ion thrusters governing performance and lifetime. Therefore reliable measurements of the grid and aperture geometry over the lifetime…Jörn Krenzer, Felix Reichenbach, Jochen Schein·Dec 4, 2024SaveLearn
Quadrupolar Density Structures in Driven Magnetic Reconnection Experiments with a Guide FieldMagnetic reconnection is a ubiquitous process in plasma physics, driving rapid and energetic events such as coronal mass ejections. Reconnection between magnetic fields with arbitrary shear can be…T. W. O. Varnish, J. Chen, S. Chowdhry et al.·Dec 3, 2024SaveLearn
Controlling the interaction of tightly focused 10-PW class lasers with multicomponent plasma via target parameters: optimization of electron-positron pair and γ-photon sourcesThe interaction of multipetawatt lasers with plasma is a complex multiparameter problem, providing a wide field for fundamental research and opening up great opportunities for creating unique sources…A. V. Bashinov, E. S. Efimenko, A. A. Muraviev et al.·Dec 3, 2024SaveLearn
Advancing Tritium Self-Sufficiency in Fusion Power Plants: Insights from the BABY ExperimentIn the pursuit of fusion power, achieving tritium self-sufficiency stands as a pivotal challenge. Tritium breeding within molten salts is a critical aspect of next-generation fusion reactors, yet…Remi Delaporte-Mathurin, Nikola Goles, John Ball et al.·Dec 2, 2024SaveLearn
Centrifugal Confinement Fusion ThrusterCentrifugal confinement fusion, a promising alternative to toroidal confinement devices like tokamaks and stellarators, leverages supersonic plasma rotation within a magnetic mirror configuration to…Yi-Min Huang·Dec 2, 2024SaveLearn
Parallel diffusion operator for magnetized plasmas with improved spectral fidelityDiffusive transport processes in magnetized plasmas are highly anisotropic, with fast parallel transport along the magnetic field lines sometimes faster than perpendicular transport by orders of…Federico D. Halpern, Min-Gu Yoo, Brendan Lyons et al.·Dec 2, 2024SaveLearn
Turbulence-Induced Safety Factor Profile Flattening at Rational Surfaces in Tokamaks with Low Magnetic ShearIn this paper, we investigate the effects of ion-scale turbulence-generated currents on the local safety factor profile under conditions of low magnetic shear and proximity to rational surfaces,…Arnas Volčokas, Justin Ball, Giovanni Di Giannatale et al.·Dec 2, 2024SaveLearn
Multimodal azimuthal oscillations in electron beam generated E × B plasmaElectron beam (e-beam) generated plasmas with applied cross electric and magnetic ( E × B ) fields are promising for low-damage material processing. However, these…Nirbhav Singh Chopra, Mina Papahn Zadeh, Mikhail Tyushev et al.·Dec 2, 2024SaveLearn
Hydrogen Utilization as a Plasma Source for Magnetohydrodynamic Direct Power Extraction (MHD-DPE)This study explores the suitability of hydrogen-based plasma in direct power extraction (DPE) as a non-conventional electricity generation method. We apply computational modeling and principles in…Osama A. Marzouk·Dec 2, 2024SaveLearn
Multi-Electrode Dielectric Barrier Discharge Actuators: Geometrical Optimization of High Power Density ArrayDielectric barrier discharge (DBD) plasma actuator arrays have been suggested as active flow control devices due to the robust electrohydrodynamic (EHD) force generation in variable atmospheric…Anthony Tang, Alexander Mamishev, Igor Novosselov·Dec 2, 2024SaveLearn
Conversion of intense laser pulses into electromagnetic fields with use of extended targetsThe effects leading to generation of quasi-stationary and propagating electromagnetic fields during the propagation of a laser-driven current discharge pulse in extended targets are considered. The…N. Bukharskii, Ph. Korneev·Nov 30, 2024SaveLearn
A framework for discrete optimization of stellarator coilsDesigning magnets for three-dimensional plasma confinement is a key task for advancing the stellarator as a fusion reactor concept. Stellarator magnets must produce an accurate field while leaving…K. C. Hammond·Nov 29, 2024SaveLearn
On the transfer of the angular momentum of a structured laser pulse to an ensemble of charged particlesA structure of a laser pulse may significantly influence the dynamics of interacting particles. In the case of dilute plasma the particle dynamics may be considered in the single particle…E. Dmitriev, Ph. Korneev·Nov 29, 2024SaveLearn