Initial transient stage of pin-to-pin nanosecond repetitively pulsed discharges in airIn this work, evolution of parameters of nanosecond repetitively pulsed (NRP) discharges in pin-to-pin configuration in air was studied during transient stage of initial twenty discharge pulses. Gas…Xingxing Wang, Adam Patel, Alexey Shashurin·Mar 30, 2022SaveLearn
Shock Hugoniot of diamond from 3 to 80 TPaThe principal Hugoniot of carbon, initially diamond, was measured from 3 to 80 TPa (30 to 800 million atmospheres), the highest pressure ever achieved, using radiography of spherically-converging…Damian C. Swift, Andrea L. Kritcher, Amy Lazicki et al.·Mar 30, 2022SaveLearn
Plasmoids formation during simulations of coaxial helicity injection in the National Spherical Torus ExperimentFormation of an elongated Sweet-Parker current sheet and a transition to plasmoid instability has for the first time been predicted by simulations in a large-scale toroidal fusion plasma in the…F. Ebrahimi, R. Raman·Mar 30, 2022SaveLearn
The DESC Stellarator Code Suite Part II: Perturbation and continuation methodsA new perturbation and continuation method is presented for computing and analyzing stellarator equilibria. The method is formally derived from a series expansion about the equilibrium condition $F…Rory Conlin, Daniel W. Dudt, Dario Panici et al.·Mar 29, 2022SaveLearn
Mitigation of plasma-wall interactions with low-Z powders in DIII-D high confinement plasmasExperiments with low-Z powder injection in DIII-D high confinement discharges demonstrated increased divertor dissipation and detachment while maintaining good core energy confinement. Lithium (Li),…Florian Effenberg, Alessandro Bortolon, Livia Casali et al.·Mar 29, 2022SaveLearn
Characteristics of grassy ELMs and its impact on the divertor heat flux widthBOUT++ turbulence simulations are conducted for a 60s steady-state long pulse high \betap EAST grassy ELM discharge. BOUT++ linear simulations show that the unstable mode spectrum covers a range of…Nami Li, X. Q. Xu, N. Yan et al.·Mar 29, 2022SaveLearn
The dynamics of dust particles during the laser-induced plasma process: Self-similar expansion in a liquidThe role of liquid ions in the dusty plasma produced by laser ablation in a liquid environment is still unclear. For that purpose, we utilized the self-similar approach to investigate the effect of…M. S. Afify, S. Salem·Mar 29, 2022SaveLearn
Systematic derivation of angular--averaged Ewald potentialIn this work we provide a step by step derivation of an angular--averaged Ewald potential suitable for numerical simulations of disordered Coulomb systems. The potential was first introduced by…G. S. Demyanov, P. R. Levashov·Mar 28, 2022SaveLearn
Cyclotron cooling to cryogenic temperature in a Penning-Malmberg trap with a large solid angle acceptanceMagnetized nonneutral plasma composed of electrons or positrons couples to the local microwave environment via cyclotron radiation. The equilibrium plasma temperature depends on the microwave energy…C. Amsler, H. Breuker, S. Chesnevskaya et al.·Mar 28, 2022SaveLearn
First-Principles Theory of the Rate of Magnetic Reconnection in Magnetospheric and Solar PlasmasThe rate of magnetic reconnection is of the utmost importance in a variety of processes because it controls, for example, the rate energy is released in solar flares, the speed of the Dungey…Yi-Hsin Liu, Paul Cassak, Xiaocan Li et al.·Mar 27, 2022SaveLearn
New Exact Plasma Equilibria with Axial and Helical SymmetryExact solutions to the static equilibrium magnetohydrodynamic equations are presented and discussed for both axially and helically reduced systems. For both symmetries, physical restrictions on the…Jason M. Keller, Alexei F. Cheviakov·Mar 26, 2022SaveLearn
Non-extensive thermodynamics of the radiation in heterogeneous thermal plasmasThermodynamic characteristics of the radiation of condensed combustion products presented in the form of agglomerates of metal-oxide nanoparticles demonstrate deviations from the classical…G. S. Dragan, V. V. Kutarov, A. Y. Bekshaev·Mar 26, 2022SaveLearn
Controlled Growth of the Self-Modulation of a Relativistic Proton Bunch in PlasmaA long, narrow, relativistic charged particle bunch propagating in plasma is subject to the self-modulation (SM) instability. We show that SM of a proton bunch can be seeded by the wakefields driven…L. Verra·Mar 25, 2022SaveLearn
Wave propagation and power deposition in blue-core helicon plasmaThe wave propagation and power deposition in blue-core helicon plasma are computed referring to recent experiments. It is found that the radial profile of wave electric field peaks off-axis during…Lei Chang, Juan F. Caneses, Saikat C. Thakur et al.·Mar 25, 2022SaveLearn
Signatures of an energetic charge bunch moving in a plasmaA charge bunch moving in a plasma can excite a variety of linear and nonlinear waves in the form of trailing wakes, fore-wake shocks and precursor solitons. These structures can further interact with…Vikram Dharodi, Atul Kumar, Abhijit Sen·Mar 24, 2022SaveLearn
Design and simulation of an Imaging Neutral Particle Analyzer for the ASDEX Upgrade tokamakAn Imaging Neutral Particle Analyser (INPA) diagnostic has been designed for the ASDEX Upgrade (AUG) tokamak. The AUG INPA diagnostic will measure fast neutrals escaping the plasma after CX…J. Rueda-Rueda, M. Garcia-Munoz, E. Viezzer et al.·Mar 24, 2022SaveLearn
Optimizing beam-ion confinement in ITER by adjusting the toroidal phase of the 3-D magnetic fields applied for ELM controlThe confinement of Neutral Beam Injection (NBI) particles in the presence of n=3 Resonant Magnetic Perturbations (RMPs) in 15 MA ITER DT plasmas has been studied using full orbit ASCOT simulations.…L. Sanchis, M. Garcia-Munoz, E. Viezzer et al.·Mar 24, 2022SaveLearn
Gyrokinetic Theory of Low-frequency Electromagnetic Waves in Finite-β Anisotropic PlasmasWe present a gyrokinetic theory for the electromagnetic waves and instabilities with frequencies much lower than the ion cyclotron frequency in finite-β anisotropic uniform plasmas. Here, β is…Haotian Chen, Liu Chen·Mar 24, 2022SaveLearn
Anomalous time of flight behavior of fast ions in laser produced aluminum plasmaIn this work, dynamics of multi-charged ions emitted from an aluminum plasma produced by Q switched Nd: Yag laser is studied using time of flight (TOF) measurements from Langmuir Probe (LP) and…Garima Arora, Jinto Thomas, Hem Chandra Joshi·Mar 23, 2022SaveLearn
Integrating a ponderomotive guiding center algorithm into a quasi-static particle-in-cell code based on azimuthal mode decompositionHigh-fidelity modeling of plasma-based acceleration (PBA) requires the use of 3D fully nonlinear and kinetic descriptions based on the particle-in-cell (PIC) method. Three-dimensional PIC algorithms…Fei Li, Weiming An, Frank S. Tsung et al.·Mar 23, 2022SaveLearn
Implementation of synthetic fast-ion loss detector and imaging heavy ion beam probe diagnostics in the 3D hybrid kinetic-MHD code MEGAA synthetic Fast-Ion Loss Detector (FILD) and an imaging Heavy Ion Beam Probe (i-HIBP) have been implemented in the 3D hybrid kinetic-magnetohydrodynamic code MEGA. First synthetic measurements from…P. Oyola, J. Gonzalez-Martin, M. Garcia-Munoz et al.·Mar 23, 2022SaveLearn
Particle-In-Cell observations of Brillouin scattering for laser interacting with magnetized overdense plasmaOne dimensional Particle-in-cell simulations using OSIRIS-4.0 has been conducted to study the interaction of a laser electromagnetic pulse with an overdense magnetized plasma target. The external…Laxman Prasad Goswami, Rohit Juneja, Dhalia Trishul et al.·Mar 23, 2022SaveLearn
A cylindrical implosion platform for the study of highly magnetized plasmas at LMJInvestigating the potential benefits of the use of magnetic fields in Inertial Confinement Fusion (ICF) experiments has given rise to new experimental platforms like the Magnetized Liner Inertial…G. Pérez-Callejo, C. Vlachos, C. A. Walsh et al.·Mar 22, 2022SaveLearn
Diagnosing Magnetic Fields in Cylindrical Implosions with Oblique Proton RadiographyTwo experiments on the OMEGA Laser System used oblique proton radiography to measure magnetic fields in cylindrical implosions with and without an applied axial magnetic field. Although the goal of…P. V. Heuer, L. S. Leal, J. R. Davies et al.·Mar 22, 2022SaveLearn
Gyrokinetic particle-in-cell simulations of electromagnetic turbulence in the presence of fast particles and global modesGlobal simulations of electromagnetic turbulence, collisionless tearing modes, and Alfven Eigenmodes in the presence of fast particles are carried out using the gyrokinetic particle-in-cell codes…A. Mishchenko, A. Bottino, T. Hayward-Schneider et al.·Mar 22, 2022SaveLearn