Introduction and verification of FEDM, an open-source FEniCS-based discharge modelling codeThis paper introduces the FEDM (Finite Element Discharge Modelling) code, which was developed using the open-source computing platform FEniCS (https://fenicsproject.org). Building on FEniCS, the FEDM…Aleksandar P. Jovanović, Detlef Loffhagen, Markus M. Becker·Dec 2, 2022SaveLearn
A quasi-isodynamic configuration with good confinement of fast ions at low plasma βA new quasi-isodynamic stellarator configuration optimized for the confinement of energetic ions at low plasma β is obtained. The numerical optimization is carried out using the STELLOPT suite of…E. Sánchez, J. L. Velasco, I. Calvo et al.·Dec 2, 2022SaveLearn
Small amplitude ion-acoustic solitary waves in a four-component magneto-rotating plasma with a modified Cairns-Tsallis distributionThe small amplitude ion-acoustic solitary waves in the magneto-rotating plasma consisting of cold fluid ions, hot positrons, and the two-temperature electrons (cold and hot electrons) are…Hong Wang, Jiulin Du, Ran Guo·Dec 2, 2022SaveLearn
A Theoretical Thrust Density Limit for Hall ThrustersHall Thrusters typically operate at thrust densities on the order of 10 N/m2, which is well below the thrust density limits discussed in previous literature. These limits have been considered here…Jacob Simmonds, Yevgeny Raitses, Andrei Smolyakov·Dec 2, 2022SaveLearn
Accelerating physics-informed neural network based 1D arc simulation by meta learningPhysics-Informed Neural Networks (PINNs) have a wide range of applications as an alternative to traditional numerical methods in plasma simulation. However, in some specific cases of PINN-based…Linlin Zhong, Bingyu Wu, Yifan Wang·Dec 1, 2022SaveLearn
Fusion breeding and pure fusion development perceptions and misperceptionsThis paper examines fusion breeding, namely the use of 14 MeV fusion neutrons to breed 233U fuel for thermal nuclear reactors. This can be accomplished much more quickly than pure fusion. It can…Wallace Manheimer·Dec 1, 2022SaveLearn
Ion acceleration with few cycle relativistic laser pulses from foil targetsIon acceleration resulting from the interaction of 11 fs laser pulses of ~35 mJ energy with ultrahigh contrast (<10-10), and 1019 W/cm2 peak intensity with foil targets made of various materials…Sargis Ter-Avetisyan, Parvin Varmazyar, Prashant K. Singh et al.·Dec 1, 2022SaveLearn
Multispecies structure-preserving particle discretization of the Landau collision operatorThis paper proposes a novel numerical integrator for modeling multispecies Coulomb collisions in kinetic plasmas. The proposed scheme provides an energy-, momentum-, and positivity-preserving…Filippo Zonta, Joseph V. Pusztay, Eero Hirvijoki·Dec 1, 2022SaveLearn
Wave-Supported Hybrid Fast-Thermal p-11B FusionThe possibility of fusion ignition in proton-Boron11 plasma is strongly enhanced if the energy from the fusion-produced α particles is channeled to fast protons, but in an environment in which…E. J. Kolmes, I. E. Ochs, N. J. Fisch·Nov 30, 2022SaveLearn
Effect of mismatch on Doppler backscattering in MAST and MAST-U plasmasThe Doppler backscattering (DBS) diagnostic, also referred to as Doppler reflectometry, measures turbulent density fluctuations of intermediate length scales. However, when the beam's wavevector…Valerian H. Hall-Chen, Felix I. Parra, Jon C. Hillesheim et al.·Nov 30, 2022SaveLearn
Heating in Multi-Layer Targets at ultra-high Intensity Laser Irradiation and the Impact of Density OscillationWe present a computational study of isochoric heating in multi-layered targets at ultra-high intensity laser irradiation (approx. 10**20 W/cm**2). Previous studies have shown enhanced ion heating at…Franziska-Luise Paschke-Bruehl, Mohammad Banjafar, Marco Garten et al.·Nov 30, 2022SaveLearn
The Force Balance of Electrons During Kinetic Anti-parallel Magnetic ReconnectionFully kinetic simulations are applied to the study of 2D anti-parallel reconnection, elucidating the dynamics by which the electron fluid maintains force balance within both the electron diffusion…J. Egedal, H. Gurram, S. Greess et al.·Nov 30, 2022SaveLearn
Spoke formation in low temperature ExB plasmas. Transition from gradient-drift instability to ionization waveLong wavelength plasma non-uniformities rotating in the azimuthal direction ("rotating spokes") have been observed in a number of experiments on Hall thrusters or magnetron discharges. We use…J P Boeuf·Nov 30, 2022SaveLearn
First steps towards a theory of the Dense Plasma Focus: Part-I: Kinematic framework with built-in propagation delay and nonzero thickness of dense sheath for generalized electrode geometryThis paper, Part I of a series, describes a kinematic framework for the theory of a Dense Plasma Focus which is very similar to the GV model in spirit but which differs in its scope in four respects.…S K H Auluck·Nov 30, 2022SaveLearn
Bose-Einstein condensation of photons in microcavity plasmasBose--Einstein condensation of a finite number of photons propagating inside a plasma-filled microcavity is investigated. The nonzero chemical potential is provided by the electrons, which induces a…J. L. Figuiredo, H. Terças, J. T. Mendonça·Nov 29, 2022SaveLearn
Verification of the generalized reduced-order particle-in-cell scheme in a radial-azimuthal ExB plasma configurationIn this article, we present an in-depth verification of the generalized electrostatic reduced-order particle-in-cell (PIC) scheme in a cross electric and magnetic field configuration representative…Farbod Faraji, Maryam Reza, Aaron Knoll·Nov 29, 2022SaveLearn
SpK: A fast atomic and microphysics code for the high-energy-density regimeSpK is part of the numerical codebase at Imperial College London used to model high energy density physics (HEDP) experiments. SpK is an efficient atomic and microphysics code used to perform…A. J. Crilly, N. P. L. Niasse, A. R. Fraser et al.·Nov 29, 2022SaveLearn
Isolation and Phase-Space Energization Analysis of the Instabilities in Collisionless ShocksWe analyze the generation of kinetic instabilities and their effect on the energization of ions in non-relativistic, oblique collisionless shocks using a 3D-3V simulation by dHybridR, a…Collin R. Brown, James Juno, Gregory G. Howes et al.·Nov 28, 2022SaveLearn
Parametric amplification of electromagnetic plasma waves in resonance with a dispersive background gravitational waveIt is shown that a sub-luminal electromagnetic plasma wave, propagating in phase with a background sub-luminal gravitational wave in a dispersive medium, can undergo parametric amplification. For…Swadesh M. Mahajan, Felipe A. Asenjo·Nov 28, 2022SaveLearn
On the Klimontovich description of complex (dusty) plasmasThe numerous idealizations that are involved in the exact microscopic statistical description of complex (dusty) plasmas are discussed in detail. The two prevailing approaches in the Klimontovich…P. Tolias·Nov 28, 2022SaveLearn
Phase Space Energization of Ions in Oblique ShocksExamining energization of kinetic plasmas in phase space is a growing topic of interest, owing to the wealth of data in phase space compared to traditional bulk energization diagnostics. Via the…James Juno, Collin R. Brown, Gregory G. Howes et al.·Nov 28, 2022SaveLearn
Triggered Ion-acoustic WavesThe Parker Solar Probe is in a solar orbit with a perihelion for orbit 12 at 13.3 solar radii. The electric field experiment on this satellite observes what we call triggered ion-acoustic waves as…Forrest Mozer, Stuart Bale, Paul Kellogg et al.·Nov 26, 2022SaveLearn
Hosking integral in nonhelical Hall cascadeThe Hosking integral, which characterizes magnetic helicity fluctuations in subvolumes, is known to govern the decay of magnetically dominated turbulence. Here we show that, when the evolution of the…Axel Brandenburg·Nov 25, 2022SaveLearn
Crater Formation and Deuterium Production in Laser Irradiation of Polymers with Implanted Nano-antennasRecent validation experiments on laser irradiation of polymer foils with and without implanted golden nano-particles are discussed. First we analyze characteristics of craters, formed in the target…L. P. Csernai, I. N. Mishustin, L. M. Satarov et al.·Nov 25, 2022SaveLearn
Isodrastic Magnetic fields for suppressing transitions in guiding-centre motionIn a magnetic field, transitions between classes of guiding-centre motion can lead to cross-field diffusion and escape. We say a magnetic field is isodrastic if guiding centres make no transitions…J. W. Burby, R. S. MacKay, S. Naik·Nov 24, 2022SaveLearn