Energy Repartition and Entropy Generation across the Earth's Bow Shock: MMS ObservationsThe evolution of plasma entropy and the process of plasma energy re-distribution at the collisionless plasma shock front are evaluated based on the high temporal resolution data from the four MMS…O. V. Agapitov, V. Krasnoselskikh, M. Balikhin et al.·Jun 5, 2023SaveLearn
Reflectionless Plasma Ignition via High-Power Virtual Perfect AbsorptionPlasma ignition is critical in various scientific and industrial applications, demanding an efficient and robust execution mechanism. In this work, we present an innovative approach to plasma…Théo Delage, Jérôme Sokoloff, Olivier Pascal et al.·Jun 5, 2023SaveLearn
thermal and stressstrain analysis of the tested iter-like w langmuir probes in eastITER-like tungsten Langmuir probes (W DLPs) have been installed and tested at the lower divertor horizontal target composed of flat-type components in EAST. Due to the non-active cooling, transient…Chunyu He, Dahuan Zhu·Jun 5, 2023SaveLearn
Parametric study of helicon wave current drive in CFETRThis paper evaluates the feasibility of helicon current drive (HCD) in a hybrid scenario for the China Fusion Engineering Test Reactor (CFETR). Utilizing the GENRAY/CQL3D package, a large number of…Xianshu Wu, Jingchun Li, Jiale Chen et al.·Jun 5, 2023SaveLearn
TIFF: Gyrofluid Turbulence in Full-f and Full-kA model and code (TIFF) for isothermal gyrofluid computation of quasi-two-dimensional interchange and drift wave turbulence in magnetized plasmas with arbitrary fluctuation amplitudes (full-f) and…Alexander Kendl·Jun 4, 2023SaveLearn
Electron Kinetics in a Positive Column of AC Discharges in a Dynamic RegimeWe have performed hybrid kinetic-fluid simulations of a positive column in AC Argon discharges over a range of driving frequencies f and gas pressure p for the conditions when the spatial nonlocality…Nathan A Humphrey, Vladimir I Kolobov·Jun 4, 2023SaveLearn
Growth rate of the initial magnetic energy in isotropic velocity field with non-Gaussian distributionWe propose a method for including the effects of non-Gaussian velocity field distribution in the estimation of growth rate of the magnetic energy in a random flow with finite memory time. The method…E. A. Illarionov, D. D. Sokoloff·Jun 3, 2023SaveLearn
Electron-Scale Current Sheets and Energy Dissipation in 3D Kinetic-Scale Plasma Turbulence with Low Electron Beta3D kinetic-scale turbulence is studied numerically in the regime where electrons are strongly magnetized (the ratio of plasma species pressure to magnetic pressure is βe=0.1 for electrons and…Cristian Vega, Vadim Roytershteyn, Gian Luca Delzanno et al.·Jun 2, 2023SaveLearn
Radiative cooling effects on reverse shocks formed by magnetised supersonic plasma flowsWe study the structure of reverse shocks formed by the collision of supersonic, magnetised plasma flows driven by an inverse (or exploding) wire array with a planar conducting obstacle. We observe…S. Merlini, J. D. Hare, G. C. Burdiak et al.·Jun 2, 2023SaveLearn
Combining stochastic density functional theory with deep potential molecular dynamics to study warm dense matterIn traditional finite-temperature Kohn-Sham density functional theory (KSDFT), the well-known orbitals wall restricts the use of first-principles molecular dynamics methods at extremely high…Tao Chen, Qianrui Liu, Yu Liu et al.·Jun 2, 2023SaveLearn
Direct Implicit and Explicit Energy-Conserving Particle-in-Cell Methods for Modeling of Capacitively-Coupled Plasma DevicesAchieving large-scale kinetic modelling is a crucial task for the development and optimization of modern plasma devices. With the trend of decreasing pressure in applications such as plasma etching,…Haomin Sun, Soham Banerjee, Sarveshwar Sharma et al.·Jun 2, 2023SaveLearn
The effect of heavy ions on the dispersion properties of kinetic Alfvén waves in astrophysical plasmasContext. Spacecraft measurements have shown Kinetic Alfvén Waves propagating in the terrestrial magnetosphere at lower wavenormal angles than predicted by linear Vlasov theory of electron-proton…Nicolás Villarroel-Sepúlveda, Rodrigo A. López, Pablo S. Moya·Jun 2, 2023SaveLearn
SDR, EVC, and SDREVC: Limitations and ExtensionsMethods for reducing the radius, temperature, and space charge of nonneutral plasma are usually reported for conditions which approximate an ideal Penning Malmberg trap. Here we show that (1) similar…E. D. Hunter, C. Amsler, H. Breuker et al.·Jun 1, 2023SaveLearn
Quantifying Energy Conversion in Higher Order Phase Space Density Moments in PlasmasWeakly collisional and collisionless plasmas are typically far from local thermodynamic equilibrium (LTE), and understanding energy conversion in such systems is a forefront research problem. The…Paul A. Cassak, M. Hasan Barbhuiya, Haoming Liang et al.·Jun 1, 2023SaveLearn
Fast transport simulations with higher-fidelity surrogate models for ITERA fast and accurate turbulence transport model based on quasilinear gyrokinetics is developed. The model consists of a set of neural networks trained on a bespoke quasilinear GENE dataset, with a…J. Citrin, P. Trochim, T. Goerler et al.·Jun 1, 2023SaveLearn
Discharge characteristics of a low-pressure geometrically asymmetric cylindrical capacitively coupled plasma with an axisymmetric magnetic fieldWe investigate the discharge characteristics of a low-pressure geometrically asymmetric cylindrical capacitively coupled plasma discharge with an axisymmetric magnetic field generating an EXB drift…Swati Dahiya, Pawandeep Singh, Yashashri Patil et al.·Jun 1, 2023SaveLearn
Modulation of electromagnetic waves in a relativistic degenerate plasma at finite temperatureWe study the modulational instability (MI) of a linearly polarized electromagnetic (EM) wave envelope in an intermediate regime of relativistic degenerate plasmas at a finite temperature (T≠0)…S. Roy, A. P. Misra, A. Abdikian·Jun 1, 2023SaveLearn
Time-resolved optical shadowgraphy of solid hydrogen jets as a testbed to benchmark particle-in-cell simulationsParticle-in-cell (PIC) simulations are a superior tool to model kinetics-dominated plasmas in relativistic and ultrarelativistic laser-solid interactions (dimensionless vectorpotential a0 > 1).…Long Yang, Lingen Huang, Stefan Assenbaum et al.·Jun 1, 2023SaveLearn
Two-Dimensional Conformal Plasma Turbulence in the Hasegawa-Mima EquationThe two-dimensional (2D) conformal field theory (CFT) suggests that the 2D plasma turbulence, governed by the Hasegawa-Mima (H-M) equation, may have multiple exponents of energy spectrum in momentum…Shigeo Kawata·Jun 1, 2023SaveLearn
ExB drift particle transport in tokamaksIn tokamaks, modification of the plasma profiles can reduce plasma transport, improving particle confinement. However, this improvement is still not completely understood. In this work, we consider a…L. A. Osorio-Quiroga, G. C. Grime, M. Roberto et al.·May 31, 2023SaveLearn
Effect of flow shear on the onset of dynamosUnderstanding the origin and structure of mean magnetic fields in astrophysical conditions is a major challenge. Shear flows often coexist in such astrophysical conditions and the role of flow shear…Shishir Biswas, Rajaraman Ganesh·May 31, 2023SaveLearn
On the capillary discharge in the high repetition rate regimeWe investigate the main physical processes that limit the repetition rate of capillary discharges used in laser accelerators of electrons theoretically and with computer simulations. We consider…P. Sasorov, G. Bagdasarov, N. Bobrova et al.·May 31, 2023SaveLearn
Energy coupling in intense laser solid interactions: material properties of goldIn the double-cone ignition inertial confinement fusion scheme, high density DT fuel is rapidly heated with high-flux fast electrons, which are generated by short and intense laser pulses. Gold cone…Xu Liu, Dong Wu, Jie Zhang·May 31, 2023SaveLearn
Fast Dynamic 1D Simulation of Divertor Plasmas with Neural PDE SurrogatesManaging divertor plasmas is crucial for operating reactor scale tokamak devices due to heat and particle flux constraints on the divertor target. Simulation is an important tool to understand and…Yoeri Poels, Gijs Derks, Egbert Westerhof et al.·May 30, 2023SaveLearn
Energy loss enhancement of very intense proton beams in dense matter due to the beam-density effectThoroughly understanding the transport and energy loss of intense ion beams in dense matter is essential for high-energy-density physics and inertial confinement fusion. Here, we report a stopping…Benzheng Chen, Jieru Ren, Zhigang Deng et al.·May 29, 2023SaveLearn