Characteristics of Femtosecond Laser Induced Filament and Energy Coupling by Nanosecond Laser Pulse in AirThis study presents a detailed plasma kinetics model for laser-induced non-equilibrium plasmas in atmospheric pressure air, incorporating a self-consistent energy balance and refined rate expressions…Sagar Pokharel, Albina Tropina·Feb 2, 2025SaveLearn
Effective theory for stochastic particle acceleration, with application to magnetized turbulenceThe physics of particle acceleration in turbulent plasmas is a topic of broad interest, which is making rapid progress thanks to dedicated, large-scale numerical experiments. The first part of this…M. Lemoine·Jan 31, 2025SaveLearn
Implementation of an ITER-relevant QP-based Current Limit Avoidance algorithm in the TCV tokamakThe problem of avoiding saturation of the coil currents is critical in large tokamaks with superconducting coils like ITER. Indeed, if the current limits are reached, a loss of control of the plasma…D. Frattolillo, A. Mele, C. Galperti et al.·Jan 31, 2025SaveLearn
Hydrogen electron cyclotron resonance ion sources plasma characterization based on simple optical emission spectroscopyHydrogen electron cyclotron resonance ion sources plasma measurements based on simple optical emission spectroscopy on a new compact low current ion source designed and built by the authors is…Jorge Feuchtwanger, Víctor Etxebarria, Joaquín Portilla et al.·Jan 31, 2025SaveLearn
Integrated Modeling of SPARC H-mode Scenarios: Exploration of the Impact of Modeling Assumptions on Predicted PerformanceIn this paper an extensive database of SPARC H-modes confinement predictions has been provided, to assess its variability with respect to few input assumptions. The simulations have been performed…Marco Muraca, Pablo Rodriguez-Fernandez, Nathaniel T. Howard et al.·Jan 31, 2025SaveLearn
Plasma dynamics in thin domainsIn the present work, we study the geometric structures of the Rotating Shallow Water Magnetohydrodynamics (RSW-MHD) equations through a Lie group invariant Euler-Poincaré variational principle. In…Darryl D. Holm, Ruiao Hu, Oliver D. Street·Jan 31, 2025SaveLearn
Effects of Satellite Body on Magnetic Plasma Orbit Control for NanosatellitesThe magnetic plasma orbit control (MPOC) has been proposed for micro and nanosatellites in the sun-synchronous orbits (SSO) in the low earth orbit (LEO). This method utilizes the plasma drag force…Ryo Kameyama, Rei Kawashima, Takaya Inamori·Jan 31, 2025SaveLearn
Characterization of NBI-driven shear Alfvén waves in the TJ-II stellarator using Mirnov probes and electrostatic potential fluctuation measurementsWe present the first experimental measurements of the toroidal mode number of shear Alfvén waves in the TJ-II stellarator. A series of experiments were carried out in three different magnetic…P. Pons-Villalonga, Á. Cappa, E. Ascasíbar et al.·Jan 30, 2025SaveLearn
Pashen-Back effect for plasma diagnosticsThe possibility of determining the magnitude of neutral atom density in hydrogen plasma was investigated using Paschen-Back effect and resonant Faraday rotation of the polarization plane of light by…Koryun Oganesyan, Krzysztof Dzierzega, Ashot Gevorgyan et al.·Jan 30, 2025SaveLearn
The topology of non-resonant stellarator divertorsWe apply topological methods to better understand how the magnetic field in the stellarator edge can be diverted away from the confined region. Our primary method is calculating the winding numbers…Robert Davies, Christopher B. Smiet, Alkesh Punjabi et al.·Jan 30, 2025SaveLearn
Deflection of Interferometry Beams due to Transverse Refractive Index Gradient in SST-1Far Infrared interferometry is the main diagnostics method for electron density measurements in medium sized tokamaks. The transverse density gradients of plasma produce refractive effect, and the…Rajwinder Kaur, Asha Adhiya·Jan 30, 2025SaveLearn
Effects of oxidation and impurities in lithium surfaces on the emitting wall plasma sheathUse of lithium as a surface coating in fusion devices improves plasma performance, but the change in wall properties affects the secondary electron emission properties of the material. Lithium…Kolter Bradshaw, Ammar Hakim, Bhuvana Srinivasan·Jan 29, 2025SaveLearn
The nonmodal kinetic theory of the macroscale convective flows of magnetized plasma, generated by the inhomogeneous microturbulencIn this paper, we present the nonmodal kinetic theory of the macroscale two-dimensional compressed-sheared non-diffusive convective flows of a magnetized plasma generated by the inhomogeneous…V. V. Mikhailenko, V. S. Mikhailenko, Hae June Lee·Jan 29, 2025SaveLearn
Generalized Expanding-Box Formulations of Reduced Magnetohydrodynamics in the Solar WindWe derive a set of simplified equations that can be used for numerical studies of reduced magnetohydrodynamic turbulence within a small patch of the radially expanding solar wind. We allow the box to…Vincent David, Benjamin D. G. Chandran, Romain Meyrand et al.·Jan 29, 2025SaveLearn
Electron dynamics of three distinct discharge modes of a cross-field atmospheric pressure plasma jetThis paper investigates the electron dynamics in three distinct discharge modes of a cross-field atmospheric pressure plasma jet, the COST-Jet. Thereby, the discharge modes are the non-neutral, the…Maximilian Klich, David Alexander Schulenberg, Sebastian Wilczek et al.·Jan 29, 2025SaveLearn
Relaxation pathways in X-ray Free Electron Laser heated IronNon-thermal photo-ionized plasmas are now established in the laboratory, and require models that treat the atomic processes and electron distribution self-consistently. We investigate the effects of…Lucas Ansia, Pedro Velarde, Marta Fajardo et al.·Jan 28, 2025SaveLearn
Shake-off in XFEL heated solid density plasmaIn atoms undergoing ionisation, an abrupt re-arrangement of free and bound electrons can lead to the ejection of another bound electron (shake-off). The spectroscopic signatures of shake-off have…G. O. Williams, L. Ansia, M. Makita et al.·Jan 28, 2025SaveLearn
Symmetry-Driven Bulk-Edge Correspondence in Electron Magnetofluids at Finite TemperatureWe present a theoretical framework connecting the pseudo-Chern number in momentum space to the spectral flow index in phase space for continuous media, with specific applications to topological…Xianhao Rao, Adil Yolbarsop, Hong Li et al.·Jan 28, 2025SaveLearn
Exploring Nonlinear Drift Waves: Limiting Cases and DynamicsA general equation for drift waves is derived incorporating both nonlinear electron density perturbation and ion vorticity effects. It is emphasized that the well-known Hasegawa-Mima (HM) equation…Hamid Saleem·Jan 27, 2025SaveLearn
A Flow-Based Hybrid Approach for Kinetic Plasma Simulations: Bridging Direct Vlasov and Particle MethodsWe present a novel flow-based kinetic approach, inspired by continuous normalizing flows, for plasma simulation that unifies the complementary strengths of direct Vlasov solvers and particle-based…Bowen Zhu, Jian Wu, Yuanbo Lu·Jan 26, 2025SaveLearn
Mode transitions and spoke structures in ExB Penning dischargeTwo-dimensional particle-in-cell simulations in the (radial-azimuthal) plane perpendicular to the axial direction of a cylindrical ExB Penning discharge are presented. The low-pressure discharge is…M. Tyushev, M. Papahn Zadeh, N. S. Chopra et al.·Jan 26, 2025SaveLearn
Drift-kinetic PIC simulations of plasma flow and energy transport in the magnetic mirror configurationPlasma flow and acceleration in a magnetic mirror configuration are studied using a drift-kinetic particles-in-cell model in the paraxial approximation, with an emphasis on finite temperature effects…M. Tyushev, A. Smolyakov, A. Sabo et al.·Jan 26, 2025SaveLearn
Similarity for downscaled kinetic simulations of electrostatic plasmas: reconciling the large system size with small Debye lengthA simple similarity has been proposed for kinetic (e.g., particle-in-cell) simulations of plasma transport that can effectively address the longstanding challenge of reconciling the tiny Debye length…Yanzeng Zhang, Haotian Mao, Yuzhi Li et al.·Jan 24, 2025SaveLearn
Electromagnetic System Conceptual Design for a Negative Triangularity TokamakNegative triangularity (NT) tokamak configurations have several key benefits including sufficient core confinement, improved power handling, and reduced edge pressure gradients that allow for…Sophia Guizzo, Mikhail A. Drabinskiy, Christopher Hansen et al.·Jan 24, 2025SaveLearn
Fast matter-antimatter separation via Weibel-induced plasma filamentationWe study the separation of matter and antimatter driven by the growth of the Weibel instability in a matter-antimatter plasma. The plasma under consideration comprises protons and antiprotons…Oliver Mathiak, Lars Reichwein, Alexander Pukhov·Jan 24, 2025SaveLearn