Design of plasma shutters for improved heavy ion acceleration by ultra-intense laser pulsesIn this work, we investigate the application of the plasma shutters for heavy ion acceleration driven by a high-intensity laser pulse. We use particle-in-cell (PIC) and hydrodynamic simulations. The…M. Matys, S. V. Bulanov, M. Kucharik et al.·May 12, 2022SaveLearn
Issues in the calculations of dc conductivity of warm dense aluminumIn the Ziman-Evans formulation, the electrical resistivity involves several quantities like the plasma mean ionization and chemical potential, the electron-ion scattering cross-section, the ion-ion…Nadine Wetta, Jean-Christophe Pain·May 12, 2022SaveLearn
Time-resolved velocity and ion sound speed measurements from simultaneous bow shock imaging and inductive probe measurementsWe present a technique to measure the time-resolved velocity and ion sound speed in magnetized, supersonic high-energy-density plasmas. We place an inductive (`b-dot') probe in a supersonic…R. Datta, D. R. Russell, T. Clayson et al.·May 12, 2022SaveLearn
A single-field-period quasi-isodynamic stellaratorA single-field-period quasi-isodynamic stellarator configuration is presented. This configuration, which resembles a twisted strip, is obtained by the method of direct construction, that is, it is…R. Jorge, G. G. Plunk, M. Drevlak et al.·May 11, 2022SaveLearn
Reduced Plasma Frequency Calculation Based on Particle-In-Cell SimulationsWe propose a scheme to calculate the reduced plasma frequency of a cylindrical-shaped electron beam flowing inside of a cylindrical tunnel, based on results obtained from Particle-in-cell (PIC)…Tarek Mealy, Robert Marosi, Filippo Capolino·May 11, 2022SaveLearn
Hybrid simulation of Alfvén wave parametric decay instability in a laboratory relevant plasmaLarge-amplitude Alfvén waves are subject to parametric decays which can have important consequences in space, astrophysical, and fusion plasmas. Though the Alfvén wave parametric decay instability…Feiyu Li, Xiangrong Fu, Seth Dorfman·May 10, 2022SaveLearn
Plasma Image Classification Using Cosine Similarity Constrained CNNPlasma jets are widely investigated both in the laboratory and in nature. Astrophysical objects such as black holes, active galactic nuclei, and young stellar objects commonly emit plasma jets in…Michael J. Falato, Bradley T. Wolfe, Tali M. Natan et al.·May 10, 2022SaveLearn
Constraints on Ion Velocity Distributions from Fusion Product SpectroscopyRecent inertial confinement fusion experiments have shown primary fusion spectral moments which are incompatible with a Maxwellian velocity distribution description. These results show that an ion…Aidan Crilly, Brian Appelbe, Owen Mannion et al.·May 10, 2022SaveLearn
Positron accumulation in the GBAR experimentWe present a description of the GBAR positron (e+) trapping apparatus, which consists of a three stage Buffer Gas Trap (BGT) followed by a High Field Penning Trap (HFT), and discuss its performance.…P. Blumer, M. Charlton, M. Chung et al.·May 9, 2022SaveLearn
Training and Upgrading Tokamak Power Plants with Remountable Superconducting MagnetsAll high field superconductors producing magnetic fields above 12 T are brittle. Nevertheless, they will probably be the materials of choice in commercial tokamaks because the fusion power density in…S. B. L. Chislett-McDonald, E. Surrey, J. Naish et al.·May 9, 2022SaveLearn
Turbulent transport regimes in the tokamak boundary and operational limitsTwo-fluid, three-dimensional, flux-driven, global, electromagnetic turbulence simulations carried out by using the GBS code are used to identify the main parameters controlling turbulent transport in…M. Giacomin, P. Ricci·May 9, 2022SaveLearn
Advanced quasistatic approximationThe quasistatic approximation (QSA) is an efficient method of simulating laser- and beam-driven plasma wakefield acceleration, but it becomes imprecise if some plasma particles make long longitudinal…P. V. Tuev, R. I. Spitsyn, K. V. Lotov·May 9, 2022SaveLearn
Density filamentation nonlinearly driven by the Weibel instability in relativistic beam plasmasDensity filamentation has been observed in many beam-plasma simulations and experiments. Because current filamentation is a pure transverse mode, charge density filamentation cannot be produced…Cong Tuan Huynh, Chang-Mo Ryu, Chulmin Kim·May 8, 2022SaveLearn
Yet Another Modification of Relativistic Magnetohydrodynamic Waves: Electron Thermal InertiaThis study investigates the properties of waves in relativistic extended magnetohydrodynamics (RXMHD), which includes Hall and electron thermal inertia effects. We focus on the case when the electron…Y. Kawazura·May 6, 2022SaveLearn
Simulating a pulsed power-driven plasma with ideal MHDWe describe a simple practical numerical method for simulating plasma driven within a vacuum chamber by a pulsed power generator. Typically, in this type of simulation, the vacuum region adjacent to…A. Beresnyak, A. L. Velikovich, J. L. Giuliani et al.·May 6, 2022SaveLearn
Optimization of quasisymmetric stellarators with self-consistent bootstrap current and energetic particle confinementQuasisymmetry can greatly improve the confinement of energetic particles and thermal plasma in a stellarator. The magnetic field of a quasisymmetric stellarator at high plasma pressure is…Matt Landreman, Stefan Buller, Michael Drevlak·May 5, 2022SaveLearn
Experimental study of the interaction of two laser-driven radiative shocks at the PALS laserRadiative shocks (RS) are complex phenomena which are ubiquitous in astrophysical environments. The study of such hypersonic shocks in the laboratory, under controlled conditions, is of primary…R. L. Singh, C. Stehle, F. Suzuki-Vidal et al.·May 5, 2022SaveLearn
On the Turbulent Behavior of a Magnetically Confined Plasma Near the X-PointWe construct a model for the turbulence near the X-point of a Tokamak device and, under suitable assumptions, we arrive to a closed equation for the electric field potential fluctuations. The…Giovanni Montani, Nakia Carlevaro, Brunello Tirozzi·May 5, 2022SaveLearn
Topological Langmuir-cyclotron waveA theoretical framework is developed to describe the Topological Langmuir-Cyclotron Wave (TLCW), a recently identified topological surface excitation in magnetized plasmas. As a topological wave, the…Hong Qin, Yichen Fu·May 5, 2022SaveLearn
Mechanism for the efficient homogeneous nucleation of ice in a weakly-ionized, ultra-cold plasmaIt is proposed that the rapid observed homogeneous nucleation of ice dust in a cold, weakly-ionized plasma depends on the formation of hydroxide (OH-) by fast electrons impacting water molecules.…Paul M. Bellan·May 4, 2022SaveLearn
Femtosecond laser-induced sub-wavelength plasma inside dielectrics: I. Field enhancementThe creation of high energy density (106 joules per cm3) over-critical plasmas in a large volume has essential applications in the study of warm dense matter, being present in the hot…Kazem Ardaneh, Remi Meyer, Mostafa Hassan et al.·May 3, 2022SaveLearn
Mechanism for Sequestering Magnetic Energy at Large Scales in Shear-Flow TurbulenceStraining of magnetic fields by large-scale shear flow, generally assumed to lead to intensification and generation of small scales, is re-examined in light of the persistent observation of…B. Tripathi, A. E. Fraser, P. W. Terry et al.·May 3, 2022SaveLearn
A kinetic interpretation of the classical Rayleigh-Taylor instabilityRayleigh-Taylor (RT) instabilities are prevalent in many physical regimes ranging from astrophysical to laboratory plasmas and have primarily been studied using fluid models, the majority of which…John Rodman, Petr Cagas, Ammar Hakim et al.·May 3, 2022SaveLearn
Analytical and numerical study of plane-progressive thermoacoustic shock waves in complex plasmasThe formation of thermoacoustic shocks is studied in a fluid complex plasma. The thermoacoustic wave mode can be damped (or anti-damped) when the contribution from the thermoacoustic interaction is…A. P. Misra, G. Banerjee·May 2, 2022SaveLearn
Production of polarized particle beams via ultraintense laser pulsesHigh-energy spin-polarized electron, positron, and γ-photon beams have many significant applications in the study of material properties, nuclear structure, particle physics, and high-energy…Ting Sun, Qian Zhao, Kun Xue et al.·May 1, 2022SaveLearn