On The Structure of Plasma Jets in the Rotating Plasma ExperimentRecent pulsed-power experiments have demonstrated the formation of astrophysically-relevant, differentially rotating plasmas [1]. Key features of the plasma flows are the discovery of a…V. Valenzuela-Villaseca, L. G. Suttle, F. Suzuki-Vidal et al.·Dec 4, 2023SaveLearn
Pair filamentation and laser scattering in beam-driven QED cascadesWe report the observation of longitudinal filamentation of an electron-positron pair plasma in a beam-driven QED cascade. The filaments are created in the "pair-reflection" regime, where the…Kenan Qu, Alec Griffith, Nathaniel J. Fisch·Dec 4, 2023SaveLearn
Self-Synchronized Trichel Pulse Trains in Multi-Point Corona Discharge SystemsEvidence of self-synchronization has been observed in multi-electrode corona discharge systems, where the application of high negative DC voltages induces a self-sustained mode of current pulse…Afshin Shaygani, Kazimierz Adamiak·Dec 4, 2023SaveLearn
Observation of a drift-driven local transport regime in the island divertor of Wendelstein 7-XMeasurements of the poloidal electron density and temperature distribution in the W7-X island divertor reveal the existence of two distinct scrape-off layer transport regimes. At low and intermediate…E Flom, D M Kriete, M Krychowiak et al.·Dec 2, 2023SaveLearn
Numerical Investigation of Non-equilibrium Electron Effects on the Collisional Ionization Rate in the Collisional-Radiative ModelThe interplay of kinetic electron physics and atomic processes in ultrashort laser-plasma interactions provides a comprehensive understanding of electron energy distribution's impact on plasma…M. S. Cho, H. -K. Chung, M. E. Foord et al.·Dec 1, 2023SaveLearn
Probing High-Speed Electron Behavior in Magnetized Plasma Using Intense Laser Pulses and Quantum ElectrodynamicsIn this study, we utilize intense laser pulses and advanced quantum mechanical frameworks to investigate the behavior of high-velocity electrons within magnetized plasma environments. The focus of…B. S. Sharma, Garima Yadav, N. K. Jaiman et al.·Dec 1, 2023SaveLearn
Enhancement of CO2 conversion by counterflow gas quenching of the post-discharge region in microwave plasma sustained by gyrotron radiationA threefold increase in the CO2 conversion and energy efficiency due to the cooling of the post-discharge region by the counter gas flow has been achieved in the plasma of an atmospheric pressure…N. V. Chekmarev, D. A. Mansfeld, A. V. Vodopyanov et al.·Dec 1, 2023SaveLearn
Low latency optical-based mode tracking with machine learning deployed on FPGAs on a tokamakActive feedback control in magnetic confinement fusion devices is desirable to mitigate plasma instabilities and enable robust operation. Optical high-speed cameras provide a powerful, non-invasive…Yumou Wei, Ryan F. Forelli, Chris Hansen et al.·Nov 30, 2023SaveLearn
A New Optimization Methodology for Polar Direct Drive Illuminations at the National Ignition FacilityA new, efficient, algorithmic approach to create illumination configurations for laser driven high energy density physics experiments is proposed. The method is applied to a polar direct drive solid…Duncan Barlow, A. Colaïtis, D. Viala et al.·Nov 30, 2023SaveLearn
Thomson scattering diagnostics at the Globus M2 tokamakThe paper is devoted to the Thomson scattering (TS) diagnostics recently developed for the Globus-M2 spherical tokamak and prototyping the ITER divertor TS diagnostics. The distinctive features of…Zhiltsov N. S., Kurskiev G. S., Tolstyakov S. Yu. et al.·Nov 30, 2023SaveLearn
Reductive Perturbation Method in Magnetized Plasma and Role of Negative IonsAn analysis of reductive perturbation method (RPM) is presented to show that why the solitary structures of nonlinear ion acoustic waves (IAWs) cannot be obtained in magnetized electron ion plasma by…H. Saleem, Shaukat Ali Shan, S. Poedts·Nov 30, 2023SaveLearn
Improved Filters for Angular Filter RefractometryAngular filter refractometry is an optical diagnostic that measures absolute contours of line-integrated density gradient by placing a filter with alternating opaque and transparent zones in the…P. V. Heuer, D. Haberberger, S. T. Ivancic et al.·Nov 29, 2023SaveLearn
Velocity Space Signatures of Resonant Energy Transfer between Whistler Waves and Electrons in the Earth's MagnetosheathWave--particle interactions play a crucial role in transferring energy between electromagnetic fields and charged particles in space and astrophysical plasmas. Despite the prevalence of different…Wence Jiang, Daniel Verscharen, Seong-Yeop Jeong et al.·Nov 29, 2023SaveLearn
A three-point velocity estimation method for turbulent flows in two spatial dimensionsTime delay and velocity estimation has been a widely studied subject in the context of signal processing, with applications in many different fields of physics. The velocity of fluctuation structures…J. M. Losada, A. D. Helgeland, J. L. Terry et al.·Nov 28, 2023SaveLearn
Collisional radiative modelling with improved cross sections to investigate plasma molecular interactions in divertor plasmasPower exhaust is one of the main challenges for the realization of practical fusion energy production. The magnetic confinement approach to fusion often uses a divertor configuration, where power…Stijn Kobussen·Nov 28, 2023SaveLearn
Coil Optimization for Quasi-helically Symmetric Stellarator ConfigurationsFilament-based coil optimizations are performed for several quasihelical stellarator configurations, notably the one from [M. Landreman, E. Paul, PRL 128, 035001, 2022], demonstrating that precise…Alexander Vyacheslav Wiedman, Stefan Buller, Matt Landreman·Nov 28, 2023SaveLearn
Self-organization of photoionized plasmas via kinetic instabilitiesSelf-organization in an unmagnetized collisionless plasma (in this paper) refers to formation of transient coherent structures such as collective oscillations (electrostatic waves) or magnetic fields…Chaojie Zhang, Chen-Kang Huang, Chan Joshi·Nov 27, 2023SaveLearn
On effective radiational gravity acceleration at the interface of dense plasmas and vacuumRadiative, gravitational surface waves are investigated at the interface of high density and low temperature, magnetized incompressible electron-ion plasmas in the presence of dense radiation…A. Asma, Ch. Rozina, I. Zafar et al.·Nov 27, 2023SaveLearn
Confining charged particles with time-varying magnetic fields: toward non-torus configuration of fusion plasmasWe develop protocols to confine charged particles using time-varying magnetic fields and demonstrate the possible non-torus configuration resulting from the distribution of single-particle motion…Shao-Wu Yao, Bo You, Yue-Hao Yin et al.·Nov 27, 2023SaveLearn
Atomic models of dense plasmas, applications and current challengesModeling plasmas in terms of atoms or ions is theoretically appealing for several reasons. When it is relevant, the notion of atom or ion in a plasma provides us with an interpretation scheme of the…R. Piron·Nov 26, 2023SaveLearn
Kinetic-Scale Topological Structures Associated with Energy Dissipation in the Turbulent Reconnection OutflowAssisted with Magnetospheric Multiscale (MMS) mission capturing unprecedented high-resolution data in the terrestrial magnetotail, we apply a local streamline-topology classification methodology to…S. Y. Huang, J. Zhang, Q. Y. Xiong et al.·Nov 25, 2023SaveLearn
Anomalous hot electron generation from two-plasmon decay instability driven by broadband laser pulses with intensity modulationsWe investigate the hot electrons generated from two-plasmon decay (TPD) instability driven by laser pulses with intensity modulated by a frequency Δωm. Our primary focus lies on scenarios where…C. Yao, J. Li, L. Hao et al.·Nov 25, 2023SaveLearn
Generation of polarized electron beams through self-injection in the interaction of a laser with a pre-polarized plasmaPolarized electron beam production via laser wakefield acceleration in pre-polarized plasma is investigated by particle-in-cell simulations. The evolution of the electron beam polarization is studied…L. R. Yin, X. F. Li, Y. J. Gu et al.·Nov 25, 2023SaveLearn
Revisiting the Physics of Strong Coupling on Dusty Plasma SystemDusty plasma can exist in a wide range, from the laboratory to Saturn's rings. The coupling parameter plays a very important role in diagnosing dusty plasma. There are two ways to deal…J. Goswami, S. S. Kausik·Nov 24, 2023SaveLearn
Disruption Prediction in Fusion Devices through Feature Extraction and Logistic RegressionThis document describes an approach used in the Multi-Machine Disruption Prediction Challenge for Fusion Energy by ITU, a data science competition which ran from September to November 2023, on the…Diogo R. Ferreira·Nov 24, 2023SaveLearn