Spectrally Accelerated Edge and Scrape-Off Layer Gyrokinetic Turbulence SimulationsThis paper presents the first gyrokinetic (GK) simulations of edge and scrape-off layer (SOL) turbulence accelerated by a velocity-space spectral approach in the full-f GK code GENE-X. Building upon…B. J. Frei, P. Ulbl, J. Trilaksono et al.·Nov 14, 2024SaveLearn
Mechanism of generating collisionless shock in magnetized gas plasma driven by laser-ablated target plasmaMechanism of generating collisionless shock in magnetized gas plasma driven by laser-ablated target plasma is investigated by using one-dimensional full particle-in-cell simulation. The effect of…S. Matsukiyo, K. Oshida, S. Isayama et al.·Nov 13, 2024SaveLearn
Injection process of pickup ion acceleration at an oblique heliospheric termination shockInjection process of pickup ion acceleration at a heliospheric termination shock is investigated. Using two-dimensional fully kinetic particle-in-cell simulation, accelerated pickup ions are…S. Matsukiyo, Y. Matsumoto·Nov 13, 2024SaveLearn
Physics-Informed Transformation Toward Improving the Machine-Learned NLTE Models of ICF SimulationsThe integration of machine learning techniques into Inertial Confinement Fusion (ICF) simulations has emerged as a powerful approach for enhancing computational efficiency. By replacing the costly…Min Sang Cho, Paul E. Grabowski, Kowshik Thopalli et al.·Nov 13, 2024SaveLearn
On the soliton solutions in a self-gravitating strongly coupled electron-ion-dusty plasmaThe effect of electrostatic strong-coupling of dust particles along with their self-gravitational force has been analyzed in a three component dusty plasma. The electrons and ions forming the charge…Shatadru Chaudhuri, Shahin Nasrin, Asesh Roy Chowdhury·Nov 13, 2024SaveLearn
Ion Temperature Measurements in the MAST-U Divertor During Steady State Plasmas and ELM Burn Through PhenomenaThis study presents ion temperature (\(Ti\)) measurements in the MAST-U divertor, using a Retarding Field Energy Analyzer (RFEA). Steady state measurements were made during an L-Mode plasma with the…Y. Damizia, S. Elmore, K. Verhaegh et al.·Nov 12, 2024SaveLearn
Electron dynamics and SiO2 etching profile evolution in capacitive Ar/CHF3 discharges driven by sawtooth-tailored voltage waveformsThe electron dynamics and SiO2 etching profile evolution in capacitively coupled Ar/CHF3 plasmas driven by sawtooth-waveforms are investigated based on a one-dimensional fluid/Monte-Carlo (MC) model…Wan Dong, Liu-Qin Song, Yi-Fan Zhang et al.·Nov 12, 2024SaveLearn
Effects of transitional orbit magnetization on transport and current in Z pinchesThe azimuthal self-magnetic field of the ideal Z pinch contains a central magnetic null. Trajectories around this null govern transport in the core. Particles follow cyclotron orbits when the…D. W. Crews, E. T. Meier, U. Shumlak·Nov 11, 2024SaveLearn
Confinement performance predictions for a high field axisymmetric tandem mirrorThis paper presents Hammir tandem mirror confinement performance analysis based on Realta Fusion's first-of-a-kind model for axisymmetric magnetic mirror fusion performance. This model uses an…S. J. Frank, J. Viola, Yu. V. Petrov et al.·Nov 11, 2024SaveLearn
Towards Model-free Temperature Diagnostics of Warm Dense Matter from Multiple Scattering AnglesWarm dense matter (WDM) plays an important role in astrophysical objects and technological applications, but the rigorous diagnostics of corresponding experiments is notoriously difficult. In this…Hannah M. Bellenbaum, Benjamin Bachmann, Dominik Kraus et al.·Nov 11, 2024SaveLearn
Landau Damping for Non-Maxwellian Distribution FunctionsLandau damping is one of the cornerstones of plasma physics. In the context of the mathematical framework developed by Landau in his original derivation of Landau damping, we examine the solutions of…Riccardo Stucchi, Philipp Lauber·Nov 11, 2024SaveLearn
Z Pinch Kinetics II -- A Continuum Perspective: Betatron Heating and Self-Generation of Sheared FlowsAdiabatic compression of a self-magnetizing current filament (a Z pinch) is analyzed via the adiabatic invariants of its constituent cyclotron and betatron motions. Chew-Goldberger-Low (CGL) models…D. W. Crews, E. T. Meier, U. Shumlak·Nov 11, 2024SaveLearn
Time delay velocity estimation from a superposition of localized and uncorrelated pulsesThis study investigates a novel method for estimating two-dimensional velocities using coarse-grained imaging data, which is particularly relevant for applications in plasma diagnostics. The method…J. M. Losada, O. E. Garcia·Nov 10, 2024SaveLearn
Effects of Laser Polarization on Target Focusing and Acceleration in a Laser-Ion Lens and AcceleratorWe present the process of ion acceleration using ultra-thin foils irradiated by elliptically polarized, high-intensity laser pulses. Recently, efficient generation of monoenergetic ion beams was…Roopendra Singh Rajawat, Tianhong Wang, V. Khudik et al.·Nov 10, 2024SaveLearn
Temperature Relaxation Rates in Strongly Magnetized PlasmasStrongly magnetized plasmas, characterized by having a gyrofrequency larger than the plasma frequency (β= ωc/ωp 1), are known to exhibit novel transport properties. Previous works studying…Louis Jose, James C. Welch, Timothy D. Tharp et al.·Nov 10, 2024SaveLearn
Improved scaling of the scrape-off layer particle flux width by the Bayes theorem on EASTThe scaling of scrape-off layer (SOL) power width (λq) is essential for advancing the understanding of particle and heat transport in the SOL. Due to the sparse layout of divertor Langmuir probes…D. C. Liu, X. Liu, L. Wang et al.·Nov 10, 2024SaveLearn
Twisted terahertz radiation generation using Laguerre-Gaussian laser pulse propagating in axially magnetized plasmaWe present analytical and simulation study of twisted terahertz (THz) radiation generation via propagation of a circularly polarized Laguerre Gaussian (LG) laser pulse in homogeneous plasma embedded…Dinkar Mishra, Saumya Singh, Bhupesh Kumar et al.·Nov 9, 2024SaveLearn
Collisional charging of dust particles by suprathermal plasmas. II -- Regularized Kappa distributionsWe study the effects of the velocity distribution functions of the plasma particles on the equilibrium charge of dust grains, acquired through inelastic collisions of the particles with the grains.…Rudi Gaelzer, Luiz Fernando Ziebell·Nov 8, 2024SaveLearn
Plasma Seismology: Fully Exploiting the Information Contained in Velocity Space of Kinetic Plasmas using the Morrison G TransformWeakly collisional plasmas contain a wealth of information about the dynamics of the plasma in the particle velocity distribution functions, yet our ability to exploit fully that information remains…Frederick Skiff, Gregory G. Howes·Nov 8, 2024SaveLearn
Latest progress on the reduced-order particle-in-cell scheme: II. Quasi-3D implementation and verificationAcross many plasma applications, the underlying phenomena and interactions among the involved processes are known to exhibit three-dimensional characteristics. Furthermore, the global properties and…Maryam Reza, Farbod Faraji, Aaron Knoll·Nov 8, 2024SaveLearn
Latest progress on the reduced-order particle-in-cell scheme: I. refining the underlying formulationThe particle-in-cell (PIC) method is a well-established and widely used kinetic plasma modelling approach that provides a hybrid Lagrangian-Eulerian approach to solve the plasma kinetic equation.…Maryam Reza, Farbod Faraji, Aaron Knoll·Nov 8, 2024SaveLearn
Isolated Attosecond γ-Ray Pulse Generation with Transverse Orbital Angular Momentum Using Intense Spatiotemporal Optical Vortex LasersAn isolated attosecond vortex γ-ray pulse is generated by using a relativistic spatiotemporal optical vortex (STOV) laser in particle-in-cell simulations. A 300-attosecond electron slice…Fengyu Sun, Xinyu Xie, Wenpeng Wang et al.·Nov 8, 2024SaveLearn
Prediction of Mode Structure Using A Novel Physics-Embedded Neural ODE MethodWe designed a new artificial neural network by modifying the neural ordinary differential equation (NODE) framework to successfully predict the time evolution of the 2D mode profile in both the…Bowen Zhu, Hao Wang, Jian Wu et al.·Nov 8, 2024SaveLearn
Analytic model for sheath-plasma resonance in inverted fireballsThe sheath plasma resonance (SPR) in an inverted fireball (IFB) system is semi-analytically investigated using a generalized hydrodynamic isothermal model formalism. It incorporates the constitutive…Subham Dutta, Johannes Gruenwald, Pralay Kumar Karmakar·Nov 8, 2024SaveLearn
Evolution of the electron distribution function during gas ionization by a sub-nanosecond microwave pulse of hundreds MW powerThe electron velocity distribution function in the plasma, formed by gas ionization with a sub-nanosecond, hundreds of megawatts power level microwave pulse, is studied by a theoretical model and by…Y. Bliokh, V. Maksimov, A. Haim et al.·Nov 7, 2024SaveLearn