Extremely powerful and frequency-tunable terahertz pulses from a table-top laser-plasma wigglerThe production of broadband, terawatt terahertz (THz) pulses has been demonstrated by irradiating relativistic lasers on solid targets. However, the generation of extremely powerful, narrow-band, and…Jie Cai, Yinren Shou, Yixing Geng et al.·Aug 25, 2023SaveLearn
Accuracy of the Explicit Energy-Conserving Particle-in-Cell Method for Under-resolved Simulations of Capacitively Coupled Plasma DischargesThe traditional explicit electrostatic momentum-conserving Particle-in-cell algorithm requires strict resolution of the electron Debye length to deliver numerical accuracy. The explicit electrostatic…Andrew T. Powis, Igor D. Kaganovich·Aug 24, 2023SaveLearn
Accelerating self-modulated nonlinear waves in weakly and strongly magnetized relativistic plasmasIt is known that a nonlinear Schrödinger equation describes the self-modulation of a large amplitude circularly polarized wave in relativistic electron-positron plasmas in the weakly and strongly…Felipe A. Asenjo·Aug 24, 2023SaveLearn
Resistive Hose modes in Tokamak Runaway Electron BeamsBeams of energetic runaway electrons are generated during disruptions in tokamaks, and fluid models are used to study their effects on macroscale dynamics. Linear computations of a massless, runaway…A. P. Sainterme, C. R. Sovinec·Aug 23, 2023SaveLearn
Impact of plasma potential and plasma sheath composition on the InN PAMOCVD growth kinetics and structural propertiesIn this paper, we present the effect of various growth parameters of PA-MOCVD on the plasma potential. The impact of varying plasma potential on the growth and structural properties of the InN films,…Zaheer Ahmad, Alexander Kozhanov·Aug 22, 2023SaveLearn
Guiding center motion for particles in a ponderomotive magnetostatic end plugThe Hamiltonian dynamics of a single particle in a rotating plasma column, interacting with an magnetic multipole is perturbatively solved for up to second order, using the method of Lie…T. Rubin, J. M. Rax, N. J. Fisch·Aug 22, 2023SaveLearn
Comment on "Modification of Lie's transform perturbation theory for charged particle motion in a magnetic field''A recent paper by L.~Zheng [Phys. Plasmas, 30, 042515 (2023)] presented a critical analysis of standard Lie-transform perturbation theory and suggested that its application to the problem of…Alain J. Brizard·Aug 22, 2023SaveLearn
Proton-Boron Fusion Yield Increased by Orders of Magnitude with Foam TargetsA novel intense beam-driven scheme for high yield of the tri-alpha reaction 11B(p,α)2α was investigated. We used a foam target made of cellulose triacetate (TAC, C9H16O8) doped with boron. It…Wen-Qing Wei, Shi-Zheng Zhang, Zhi-Gang Deng et al.·Aug 21, 2023SaveLearn
Electron heat flux and propagating fronts in plasma thermal quench via ambipolar transportThe thermal collapse of a nearly collisionless plasma interacting with a cooling spot, in which the electron parallel heat flux plays an essential role, is investigated both theoretically and…Yanzeng Zhang, Jun Li, Xianzhu Tang·Aug 21, 2023SaveLearn
QScatter: Numerical Framework for Fast Prediction of Particle Distributions in Electron-Laser ScatteringThe new generation of multi-PetaWatt laser facilities will allow tests of Strong Field QED, as well as provide an opportunity for novel photon and lepton sources. The first experiments are planned to…Óscar Amaro, Marija Vranic·Aug 18, 2023SaveLearn
The SPARC Toroidal Field Model Coil ProgramThe SPARC Toroidal Field Model Coil (TFMC) Program was a three-year effort between 2018 and 2021 that developed novel Rare Earth Yttrium Barium Copper Oxide (REBCO) superconductor technologies and…Zachary Hartwig, Rui Vieira, Darby Dunn et al.·Aug 18, 2023SaveLearn
3D particle-in-cell simulations of negative and positive streamers in C4F7N-CO2 mixturesWe investigate negative and positive streamers in C4F7N-CO2 mixtures through simulations. These mixtures are considered to be more environmentally friendly than the insulating gas SF6 that is widely…Baohong Guo, Ute Ebert, Jannis Teunissen·Aug 17, 2023SaveLearn
Comparison of saturation rules used for gyrokinetic quasilinear transport modelingTheory-based transport modeling has been widely successful and is built on the foundations of quasilinear theory. Specifically, the quasilinear expression of the flux can be used in combination with…Scott E. Parker, Calder Haubrich, Qiheng Cai et al.·Aug 17, 2023SaveLearn
Characterization of fast magnetosonic waves driven by compact toroid plasma injection along a magnetic fieldMagnetosonic waves are low-frequency, linearly polarized magnetohydrodynamic (MHD) waves commonly found in space, responsible for many well-known features, such as heating of the solar corona. In…F. Chu, S. J. Langendorf, J. Olson et al.·Aug 15, 2023SaveLearn
Towards the demonstration of photon-photon collision with compact lasersWe report a proposal to observe the two-photon Breit-Wheeler process in plasma driven by compact lasers. A high charge electron bunch can be generated from laser plasma wakefield acceleration when a…L. Q. Han, J. Cai, Y. R. Shou et al.·Aug 15, 2023SaveLearn
Models of Tokamak DisruptionsDisruptions are a serious issue in tokamaks. In a disruption, the thermal energy is lost by means of an instability which could be a resistive wall tearing mode (RWTM). During precursors to a…H. R. Strauss·Aug 15, 2023SaveLearn
Particle acceleration in self-driven turbulent reconnectionThe theoretical prediction that magnetic reconnection spontaneously drives turbulence has been supported by magnetohydrodynamic (MHD) and kinetic simulations. While reconnection with externally…Jian-Fu Zhang, Siyao Xu, Alex Lazarian et al.·Aug 15, 2023SaveLearn
Fast-moving electrostatic solitons in a plasma with turbulence heatingIn this work, it is shown that electrostatic solitons in a plasma with turbulent heating of the electrons through an accelerating electric field can form with very high velocities, reaching up to…Mridusmita Das, Murchana Khusroo, Madhurjya P. Bora·Aug 13, 2023SaveLearn
Novel hydrodynamic cumulation mechanism caused by quantum shell effectsThe computational and theoretical analysis carried out in this article demonstrates the existence of a nontrivial mechanism for the compression of a submicron-sized gas bubble formed by a gas of…S. E. Kuratov, I. S. Menshov, S. Yu. Igashov et al.·Aug 13, 2023SaveLearn
A tutorial overview on the angular scattering models of Electron-Neutral, Ion-Neutral, Neutral-Neutral, and Coulomb Collisions in Monte Carlo collision modeling on low temperature plasmaOver the past decade, massive modeling practices on low temperature plasma (LTP) reveal that input data such as microscopic scattering cross sections are crucial to output macroscopic phenomena. In…Wei Yang·Aug 11, 2023SaveLearn
Kinetic-Ballooning-Limited Pedestals in Spherical Tokamak PlasmasA theoretical model is presented that for the first time matches experimental measurements of the pedestal width-height Diallo scaling in the low-aspect-ratio high-β tokamak NSTX. Combining linear…J. F. Parisi, W. Guttenfelder, A. O. Nelson et al.·Aug 9, 2023SaveLearn
Compact Petawatt-Class Laser Wakefield Acceleration with Plasma TelescopeThe compactness of laser wakefield acceleration (LWFA) is limited by its long focal length for high power lasers, e.g., more than 10 meters for 1-peatawatt (PW) laser pulse and up to hundreds of…Xuesong Geng, Liangliang Ji, Baifei Shen·Aug 9, 2023SaveLearn
Vibronic State-Specific Modelling of High-Speed Nitrogen Shocked Flows. Part II: Shock Tube SimulationsThe conditions of thermochemical and radiative non-equilibrium attained in nitrogen shocked flows were quantified using a vibronic state-specific model. This model, being described in a companion…Élio Pereira, Jorge Loureiro, Mário Lino da Silva·Aug 9, 2023SaveLearn
RBG-Maxwell Framework: Simulation of Collisional Plasma Systems via Coupled Boltzmann-Maxwell equations on GPUThis paper presents the RBG-Maxwell framework, a relativistic collisional plasma simulator on GPUs. We provide detailed discussions on the fundamental equations, numerical algorithms, implementation…Ming-Yan Sun, Peng Xu, Jun-Jie Zhang et al.·Aug 9, 2023SaveLearn
A topological approach to magnetic nullsMagnetic nulls are locations where the magnetic field vanishes. Nulls are the location of magnetic reconnection, and they determine to a large degree the magnetic connectivity in a system. We…Ben Y. Israeli, Christopher Berg Smiet·Aug 8, 2023SaveLearn