Action Principles and Conservation Laws for Chew-Goldberger-Low Anisotropic PlasmasThe ideal CGL plasma equations, including the double adiabatic conservation laws for the parallel (p) and perpendicular pressure (p), are investigated using a Lagrangian…G. M. Webb, S. C. Anco, S. V. Meleshko et al.·Feb 13, 2022SaveLearn
Supersonic-subsonic transition region in radiative heat flow via self-similar solutionsWe study the radiative hydrodynamics flow of radiation-driven heat waves in hot dense plasmas, using approximate self-similar solutions. Specifically, we have focused on the intermediate regime…Elad Malka, Shay I. Heizler·Feb 13, 2022SaveLearn
Numerical Implementation of the Improved Sugama Collision Operator Using a Moment ApproachThe numerical implementation of the linearized gyrokinetic (GK) and drift-kinetic (DK) improved Sugama (IS) collision operators, recently introduced by Sugama et al. [Phys. Plasmas 26, 102108…B. J. Frei, S. Ernst, P. Ricci·Feb 13, 2022SaveLearn
Electromagnetic total-f algorithm for gyrokinetic particle-in-cell simulations of boundary plasma in XGCThe simplified delta-f mixed-variable/pull-back electromagnetic simulation algorithm implemented in XGC for core plasma simulations by M. Cole et al. [Phys. Plasmas 28, 034501 (2021)] has been…Robert Hager, Seung-Hoe Ku, A. Y. Sharma et al.·Feb 12, 2022SaveLearn
Radiation condition for the 3-dimensional Helmholtz equation on the boundary of a bounded domainIn the formulation of the problem of scattering of monochromatic waves and the numerical simulation of the solution to the Helmholtz equation, there is a computational inconvenience: the calculation…Vladimir V. Gorin·Feb 11, 2022SaveLearn
Mapping the power-law decay of high-harmonic spectra from laser-plasma interactionsVisible or near infra-red light can be manipulated to produce bursts of coherent extreme ultraviolet (XUV) or X-rays via the relativistic high-order harmonic generation process when a laser…Shikha Bhadoria, Thomas Blackburn, Arkady Gonoskov et al.·Feb 10, 2022SaveLearn
Maximizing MeV x-ray dose in relativistic laser-solid interactionsBremsstrahlung x-rays generated in laser-solid interactions can be used as light sources for high-energy-density science. We present electron and x-ray spectra from particle-in-cell and Monte Carlo…Kyle G. Miller, Dean R. Rusby, Andreas J. Kemp et al.·Feb 10, 2022SaveLearn
Ultrafast hard X-ray sources based on Relativistic Electrons at ELI BeamlinesWe report the LWFA driven X-ray sources development at ELI beamlines. ELI Gammatron beamline provides X-ray pulses of energies from 1-100 keV in betatron scheme, and up to a MeV in Compton scheme. A…U. Chaulagain, M. Lamač, M. Raclavský et al.·Feb 9, 2022SaveLearn
Electron Beam Weibel Instability in the Collisionless Shock with Low Mach NumberThe electron beam Weibel instability in the electrostatic collisionless shock is studied via particle in cell simulation. When the non-relativistic incoming plasmas collide with cold dilute plasmas,…Jiansheng Yao, Yingkui Zhao, Biyao Ouyang et al.·Feb 9, 2022SaveLearn
14-moment maximum-entropy modelling of collisionless ions for Hall thruster dischargesIons in Hall effect thrusters are often characterized by a low collisionality. In the presence of acceleration fields and azimuthal electric field waves, this results in strong deviations from…Stefano Boccelli, James G. McDonald, Thierry E. Magin·Feb 8, 2022SaveLearn
A laser-driven mixed fuel nuclear fusion micro-reactor conceptWe propose a laser-driven near-solid density nano-structured micro-reactor concept operating with mixed nuclear fusion fuels. The micro-reactor is capable of making use of a range of neutronic and…Hartmut Ruhl, Georg Korn·Feb 7, 2022SaveLearn
Particle energization in colliding subcritical collisionless shocks investigated in the laboratoryColliding collisionless shocks appear in a great variety of astrophysical phenomena and are thought to be possible sources of particle acceleration in the Universe. To investigate the detailed…A. Fazzini, W. Yao, K. Burdonov et al.·Feb 7, 2022SaveLearn
Ionization waves (striations) in a low-current plasma column revisited with kinetic and fluid modelsA one-dimensional Particle-In-Cell Monte Carlo Collisions (PIC-MCC) method has been used to model the development and propagation of ionization waves in neon and argon positive columns. Low current…J. Boeuf·Feb 7, 2022SaveLearn
Wall Ion Loss Reduction by Acceleration Zone Shifting in Anode-Layer Hall ThrusterIn this study, wall ion loss and erosion rate are evaluated in the RAIJIN thruster. The novelty of this work is the detailed analysis of measured guard-ring (metallic channel wall) current, which…Rei Kawashima, Yushi Hamada, Shu Kawabata et al.·Feb 7, 2022SaveLearn
Phase space consideration of low energy electron injection for Direct Laser AccelerationFeasibility of ionization injection for Direct Laser Acceleration (DLA) of electrons up to hundreds of MeV was studied analytically. Criteria for effective injection determining range of background…E. Starodubtseva, I. Tsymbalov, D. Gorlova et al.·Feb 6, 2022SaveLearn
The uniform electron gas at high temperatures: ab initio path integral Monte Carlo simulations and analytical theoryWe present extensive new ab initio path integral Monte Carlo (PIMC) simulations of the uniform electron gas (UEG) in the high-temperature regime,…Tobias Dornheim, Jan Vorberger, Zhandos Moldabekov et al.·Feb 6, 2022SaveLearn
The ion acoustic instability of the rotating cylindrical helicon discharge plasmaThe kinetic theory for the cylindrical plasma, produced by the cylindrically symmetric (azimuthal mode number m=0) helicon wave, is developed with accounting for the cylindrical geometry and the…V. V. Mikhailenko, Hae June Lee, V. S. Mikhailenko·Feb 6, 2022SaveLearn
Finite orbit width effects in large aspect ratio stellaratorsNew orbit averaged equations for low collisionality neoclassical fluxes in large aspect ratio stellarators with mirror ratios close to unity are derived. The equations retain finite orbit width…Vincent d'Herbemont, Felix I. Parra, Ivan Calvo et al.·Feb 2, 2022SaveLearn
Anomalous convective transport of the tokamak edge plasma, caused by the inhomogeneous ion cyclotron parametric turbulenceIn this paper, we develop the kinetic and hydrodynamic theories of the convective mesoscale flows driven by the spatially inhomogeneous electrostatic ion cyclotron parametric microturbulence in the…V. S. Mikhailenko, V. V. Mikhailenko, Hae June Lee·Feb 2, 2022SaveLearn
Phases and phase-transitions in quasisymmetric configuration spaceWe explore the structure of the space of quasisymmetric configurations identifying them by their magnetic axes, described as 3D closed curves. We demonstrate that this topological perspective divides…Eduardo Rodriguez, Wrick Sengupta, Amitava Bhattacharjee·Feb 2, 2022SaveLearn
Importance of accurate consideration of the electron inertia in hybrid-kinetic simulations of collisionless plasma turbulence: 1. The 2D limitThe dissipation mechanism of the magnetic energy in turbulent collisionless space and astrophysical plasmas is still not well understood. Its investigation requires efficient kinetic simulations of…Neeraj Jain, Patricio Muñoz, Meisam Farzalipour Tabriz et al.·Feb 2, 2022SaveLearn
Kinetic modeling of neutral transport for a continuum gyrokinetic codeWe present the first-of-its-kind coupling of a continuum full-f gyrokinetic turbulence model with a 6D continuum model for kinetic neutrals, carried out using the Gkeyll code. Our objective is to…T. N. Bernard, F. D. Halpern, M. Francisquez et al.·Feb 1, 2022SaveLearn
Attosecond dispersion as a diagnostics tool for solid-density laser-generated plasmasExtreme-ultraviolet pulses can propagate through ionised solid-density targets, unlike optical pulses and, thus, have the potential to probe the interior of such plasmas on sub-femtosecond…Andréas Sundström, István Pusztai, Per Eng-Johnsson et al.·Feb 1, 2022SaveLearn
Observation of the toroidal rotation in a new designed compact torus system for EASTCompact torus injection is considered as a high promising approach to realize central fueling in the future tokamak device. Recently, a compact torus injection system has been developed for the…Z. H. Zhao, T. Lan, D. F. Kong et al.·Feb 1, 2022SaveLearn
Charge kinetics across a negatively biased semiconducting plasma-solid interfaceAn investigation of the selfconsistent ambipolar charge kinetics across a negatively biased semiconducting plasma-solid interface is presented. For the specific case of a thin germanium layer with…K. Rasek, F. X. Bronold, H. Fehske·Feb 1, 2022SaveLearn