Monoenergetic acceleration of charge-neutralized ion bunches to GeV-scale energies by the combination of a high-current electron beam and an ionization frontCompact heavy ion accelerators have numerous applications, ranging from heavy ion fusion to carbon ion radiotherapy, and testing radiation-hardened electronics. The demand could be met by developing…Jiyuan Chen, Jihoon Kim, Roopendra Singh Rajawat et al.·Aug 12, 2026SaveLearn
Evaluation of the Ambipolar Diffusion Approximation in Partially Ionized Rarefied Hypersonic FlowsAccurate numerical simulation of rarefied hypersonic plasmas is increasingly important for optimization of re-entry spacecraft design and the development of advanced aerospace technologies. For…Marisa Petrusky, Iain D. Boyd·Aug 12, 2026SaveLearn
Derivation and application of sheath boundary conditions for drift-kinetic simulations in a linear plasma device based on a gyromoment approachBoundary conditions for a drift-kinetic model at the collisional presheath entrance with perpendicular incidence of the magnetic field to the wall are derived and numerically implemented. The…Jacob Emil Mencke, Thomas Stucker, Paolo Ricci·Aug 12, 2026SaveLearn
The Ambipolar electric field in multispecies plasma atmospheres: effects of alpha particles and stochastic heatingWe investigate stationary states of a collisionless, gravitationally stratified plasma atmosphere composed of electrons, protons, and alpha particles by extending Pannekoek--Rosseland theory to…Luca Barbieri, Pascal Démoulin, Daniel Verscharen·Aug 12, 2026SaveLearn
Measurements of Laser-Driven Plasma Expansion into Hohlraum-Relevant Background GasExperiments at the OMEGA EP laser facility were designed and executed to study plasma expansion into hohlraum-relevant gas fills (0.3-0.6 mg/cc of helium), providing a surrogate platform for…S. Hilsabeck, S. Dannhoff, C. A. Walsh et al.·Aug 12, 2026SaveLearn
Reconstructive AI Spectroscopy of Charged Particle BeamsThis work introduces a physics-informed neural network (PINN) framework for reconstructing electron energy spectra from sparsely sampled attenuation-curve data. Leveraging the NVIDIA PhysicsNeMo…Vasily Kozhevnikov, Andrey Kozyrev, Elena Klepalova et al.·Aug 12, 2026SaveLearn
Data-Driven Generation of Compact Quasi-Isodynamic StellaratorsStellarator design explores a vast space of three-dimensional plasma boundaries, only a small fraction of which yields usable equilibria. Data-driven models can narrow this search by learning from…Yang Han, Hanlin Chen. Shuai Cao, Zhiyuan Lu et al.·Aug 11, 2026SaveLearn
Machine-learning surrogate models for nonlinear energetic-particle transport predictions in ITERFast and accurate prediction of energetic-particle transport driven by Alfvén eigenmode (AE) instabilities is essential for integrated modeling workflows used in the design and optimization of…Yashika Ghai, Donald A. Spong, Jacobo Varela et al.·Aug 11, 2026SaveLearn
Gas Flow Rate Influence on Gas Temperature Regulation in a Reinforced Radio-Frequency Cross-Field Atmospheric Plasma JetThis study investigates the effect of gas flow rate on the gas temperature and discharge characteristics of a reinforced radio frequency cross-field atmospheric pressure plasma jet (APPJ) with an…Radhika T. P., Satyananda Kar·Aug 11, 2026SaveLearn
Potential of Atmospheric Pressure Thermal Plasma Technology towards Waste Processing: A Comprehensive ReviewThe enhancement of living standards has significantly contributed to the rapid growth of urban populations, resulting in a substantial increase in municipal solid waste (MSW) generation. This trend…Tejashwi Rana, Aishik Basu Mallick, Radhika T P et al.·Aug 11, 2026SaveLearn
Development and Characterization of a Microwave Atmospheric Pressure Plasma JetOver the past decade, atmospheric pressure discharges in the microwave frequency range have gained significant attention due to their promising applications in material processing, CO2 dissociation,…Suryasunil Rath, Satyananda Kar·Aug 11, 2026SaveLearn
Steady state, core, operational optimization of an ARC-like tokamak via plasma composition and shapeImpurity composition, plasma shape, and pedestal density all provide strong levers on fusion power. Here, we explore the ways in which their variation changes fusion power and seek to find the…A. Saltzman, P. Rodriguez-Fernandez, A. Ho et al.·Aug 10, 2026SaveLearn
Energy-optimized scaling laws for self-guided laser wakefield acceleratorsLaser wakefield acceleration promises compact electron accelerators for applications in medicine, industry, and fundamental science. Yet, despite rapid progress, accurately predicting the electron…Petr Valenta, Marcel Lamač, Kyle G. Miller et al.·Aug 9, 2026SaveLearn
Transitional evolution of the wave dispersion relation during helicon discharge ignition: an analytical theory from vacuum to steady operationThe dispersion relations of the helicon and Trivelpiece--Gould (TG) waves in a steady, fully developed magnetised plasma column are well established, but the discharge does not begin in that state.…Lei Chang·Aug 9, 2026SaveLearn
Dipole-Field Magnetic Windows for Radio-Frequency Transmission Through Hypersonic Plasma Sheaths: A Reduced-Order Scaling ModelHypersonic vehicles and atmospheric-entry bodies can experience radio-frequency communication blackout when shock-heated gas surrounding the vehicle becomes sufficiently ionized that plasma cutoff…Richard Lieu·Aug 8, 2026SaveLearn
Beam experiments for reactive ion etching of silicon (Si)-based materials by silicon halide ionsEtching yields of Si, SiO2, and Si3N4 have been determined for silicon ion (Si+), halogen ions (F+, Cl+, and Br+) and silicon halide ions (SiF+, SiF3+, SiCl+, SiCl3+, SiBr+, and SiBr3+) irradiation…Kazuhiro Karahashi, Tomoko Ito, Satoshi Hamaguchi·Aug 8, 2026SaveLearn
Simulations of self-accelerating electron phase space holes in an applied electric fieldThe self-acceleration of electron phase space holes in an applied electric field is investigated via one-dimensional electrostatic Vlasov simulations. The electron holes (EHs) are initialized in a…Ran Guo·Aug 8, 2026SaveLearn
PASCHEN-1D: A one-dimensional fluid plasma solver with multi-mechanism surface emission and flexible external circuit couplingWe present PASCHEN-1D (Plasma Advanced Solver with Coupled High-fidelity Emission and external Network), a one-dimensional time-dependent fluid plasma solver developed for self-consistent simulation…Asif Iqbal, Yves Heri, Bingqing Wang et al.·Aug 7, 2026SaveLearn
Characterization of a prototype parallel-plate 238U fission chamber with DD and DT fusion neutron sourcesThe SPARC tokamak will employ 238U-based fission chambers (FCs) to monitor high-performance deuterium-tritium (DT) plasma operations, spanning neutron yield rates from 1015 to…V. Hagenlocker, R. A. Tinguely, X. Wang et al.·Aug 7, 2026SaveLearn
Electron-Scale-Driven Turbulence by Negative-Density-Gradient in NSTXGyrokinetic simulations of an NSTX spherical-tokamak plasma reveal novel negative-density-gradient (NDG) drift waves at electron-gyroradius-scale that drive turbulent transport comparable to the…C. Clauser, J. Candy, J. Parisi et al.·Aug 7, 2026SaveLearn
Linear and nonlinear benchmark of gyrokinetic simulation of energetic particle driven toroidal Alfven eigenmodes in ITPA TAE benchmark caseA new gyrokinetic code, TEK, was benchmarked in simulating energetic particle (EP) driven toroidal Alfven eigenmodes (TAEs) in the simple tokamak configuration chosen by the ITPA-EP group for code…Youjun Hu, Yang Chen, Lei Ye et al.·Aug 7, 2026SaveLearn
Rankine-Hugoniot conditions in Q-variables: a wave-aligned formulation of MHD discontinuitiesThe recently developed Q-variable formalism generalises the Elsässer representation by providing a wave-aligned representation applicable to a broad class of magnetohydrodynamic disturbances,…Anna Krupka, Tijs Van Hoof, Tom Van Doorsselaere·Aug 7, 2026SaveLearn
Distributions of particles accelerated by strong Alfvénic turbulenceThis work presents a model for generating nonthermal power-law tails of particles' energy probability density functions in turbulent collisionless plasmas, applicable to both non-relativistic and…Stanislav Boldyrev, Daniel Humphrey, Vadim Roytershteyn et al.·Aug 7, 2026SaveLearn
The Equations of Reduced Magnetohydrodynamics in Dipole CoordinatesThe equations of reduced magnetohydrodynamics (RMHD) isolate the Alfvénic energy transfer and turbulence dynamics from MHD in a computationally tractable way. In this study, we derive the equations…Ian M. DesJardin, Christopher Bard, Natalia Y. Buzulukova et al.·Aug 6, 2026SaveLearn
Polarization-Conditioned Fourier-enhanced DeepONet for Electric Field Reconstruction from EFISH MeasurementsElectric-field-induced second-harmonic generation (EFISH) is an established laser diagnostic for quantifying electric fields in plasmas, yet ensuring field accuracy remains challenging given the…Zhijian Yang, Edwin Setiadi Sugeng, Yaqi Zhang et al.·Aug 6, 2026SaveLearn