Positron beam loading and acceleration in the blowout regime of plasma wakefield acceleratorPlasma wakefield acceleration in the nonlinear blowout regime has been shown to provide high acceleration gradients and high energy transfer efficiency while maintaining great beam quality for…Shiyu Zhou, Weiming An, Siqin Ding et al.·Nov 15, 2022SaveLearn
Acoustic waves in the Jovian dusty magnetosphere: A brief review and meta-analysisThe omnipresence of dust particulates in space and astrophysical plasmas has been attracting numerous researchers to study the collective excitation and propagation dynamics of different eigen-mode…Souvik Das, Ahmed Atteya, Pralay Kumar Karmakar·Nov 15, 2022SaveLearn
Thresholdless stochastic particle heating by a single waveStochastic heating is a well-known mechanism through which magnetized particles may be energized by low-frequency electromagnetic waves. In its simplest version, under spatially homogeneous…F. Sattin, D. F. Escande·Nov 14, 2022SaveLearn
Observation of the epsilon-near-zero (ENZ) effect inside the laser plasma in airIn the world of epsilon-near-zero (ENZ) materials, the plasma is unique for its natural ENZ properties at the plasma frequency (wp). However, for the air plasma during femtosecond laser filamentation…Jiayu Zhao·Nov 13, 2022SaveLearn
Staged cooling of a fusion-grade plasma in a tokamak thermal quenchIn tokamak disruptions where the magnetic connection length becomes comparable to or even shorter than the plasma mean-free-path, parallel transport can dominate the energy loss and the thermal…Jun Li, Yanzeng Zhang, Xian-Zhu Tang·Nov 13, 2022SaveLearn
The Effect of Externally Applied 3D Fields on NSTX Edge TurbulenceWe report on a study of the structure of edge turbulence in NSTX H-mode discharges with applied n=1 and n=3 non-axisymmetric magnetic perturbations. The edge turbulence is diagnosed in NSTX using the…Michael O. Hanson, Dmitri M. Orlov, Stewart Zweben et al.·Nov 12, 2022SaveLearn
Continuum kinetic investigation of the impact of bias potentials in the current saturation regime on sheath formationIn this work, we examine sheath formation in the presence of bias potentials in the current saturation regime for pulsed power fusion experiments. It is important to understand how the particle and…Chirag R. Skolar, Kolter Bradshaw, James Juno et al.·Nov 11, 2022SaveLearn
A variational atomic model of plasma accounting for ion radial correlations and electronic structure of ions (VAMPIRES)We propose a model of ion-electron plasma (or nucleus-electron plasma) that accounts for the electronic structure around nuclei (i.e. ion structure) as well as for ion-ion correlations. The model…T. Blenski, R. Piron·Nov 11, 2022SaveLearn
Radiation reaction effects in relativistic plasmas -- the electrostatic limitWe study the evolution of electrostatic plasma waves, using the relativistic Vlasov equation extended by the Landau-Lifshitz radiation reaction, accounting for the back-reaction due to the emission…Haidar Al-Naseri, Gert Brodin·Nov 11, 2022SaveLearn
Dynamics of nanosecond laser pulse propagation and of associated instabilities in a magnetized underdense plasmaThe propagation and energy coupling of intense laser beams in plasmas are critical issues in laser-driven inertial confinement fusion. Applying magnetic fields to such a setup has been evoked to…W. Yao, A. Higginson, J. -R. Marquès et al.·Nov 11, 2022SaveLearn
The electron cyclotron drift instability: a comparison of particle-in-cell and continuum Vlasov simulationsThe linear and nonlinear characteristics of the electron cyclotron drift instability (ECDI) have been studied through the particle-in-cell (PIC) and continuum Vlasov simulation methods in connection…Arash Tavassoli, Mina Papahn Zadeh, Andrei Smolyakov et al.·Nov 10, 2022SaveLearn
A Note on Optimal Tokamak Control for Fusion Power SimulationThe Tokamak device is the most promising candidate for producing sustainable electric power by nuclear fusion. It is a torus-shaped device that confines plasma by a strong magnetic field. The…M. Holst, V. Kungurtsev, S. Mukherjee·Nov 10, 2022SaveLearn
Application of GPU-accelerated FDTD method to electromagnetic wave propagation in plasma using MATLAB Parallel Processing ToolboxSince numerical computing with MATLAB offers a wide variety of advantages, such as easier developing and debugging of computational codes rather than lower-level languages, the popularity of this…Shayan Dodge, Mojtaba Shafiee, Babak Shokri·Nov 10, 2022SaveLearn
Electron dynamics in planar radio frequency magnetron plasmas: III. Comparison of experimental investigations of power absorption dynamics to simulation resultsIn magnetized capacitively coupled radio-frequency discharges operated at low pressure the influence of the magnetic flux density on discharge properties has been studied recently both by…Birk Berger, Denis Eremin, Moritz Oberberg et al.·Nov 10, 2022SaveLearn
Intense whistler-mode waves at foreshock transients: characteristics and regimes of wave-particle resonant interactionThermalization and heating of plasma flows at shocks result in unstable charged-particle distributions which generate a wide range of electromagnetic waves. These waves, in turn, can further…Xiaofei Shi, Terry Liu, Anton Artemyev et al.·Nov 10, 2022SaveLearn
Unified fluid-model theory of E×B instabilities in low-ionized collisional plasmas with arbitrarily magnetized multi-species ionsThis paper develops a unified linear theory of local cross-field plasma instabilities, such as the Farley-Buneman, electron thermal, and ion thermal instabilities, in collisional plasmas with fully…Y. S. Dimant, M. M Oppenheim, S. Evans et al.·Nov 9, 2022SaveLearn
Negative ion density in the ion source SPIDER in Cs free conditionsThe SPIDER experiment, operated at the Neutral Beam Test Facility of Consorzio RFX, Padua, hosts the prototype of the H-/D- ion source for the ITER neutral beam injectors. The maximization of the ion…M. Barbisan, R. Agnello, G. Casati et al.·Nov 9, 2022SaveLearn
Magnetospheric Multiscale Observations of Markov Turbulence on Kinetic ScalesIn our previous studies we have examined solar wind and magnetospheric plasmas turbulence, including Markovian character on large inertial magneto-hydrodynamic scales. Here we present the results of…Wieslaw M. Macek, Dariusz Wojcik, James L. Burch·Nov 9, 2022SaveLearn
Generating axial magnetic fields via two plasmon decay driven by a twisted laserWe propose a new way of axial magnetic fields generation in a non-relativistic laser intensity regime by using a twisted light carrying orbital angular momentum (OAM) to stimulate two-plasmon decay…Yu Ji, Chang-Wang Lian, Yin Shi et al.·Nov 9, 2022SaveLearn
Electron dynamics in planar radio frequency magnetron plasmas: I. The mechanism of Hall heating and the μ-modeThe electron dynamics and the mechanisms of power absorption in radio-frequency (RF) driven, magnetically enhanced capacitively coupled plasmas (MECCPs) at low pressure are investigated. The device…Denis Eremin, Dennis Engel, Dennis Krüger et al.·Nov 9, 2022SaveLearn
Development and first operation of a Cavity Ring Down Spectroscopy diagnostic in the negative ion source SPIDERThe Neutral Beam Injectors of the ITER experiment will rely on negative ion sources to produce 16.7 MW beams of H/D particles accelerated at 1 MeV. The prototype of these sources was built and is…M. Barbisan, R. Pasqualotto, R. Agnello et al.·Nov 9, 2022SaveLearn
Development of a hardened THz energy meter for use on the kilojoule-scale, short-pulse OMEGA EP laserA highly adaptable and robust THz energy meter has been designed and implemented to detect energetic THz pulses from high intensity (greater than 1E18 watts per square centimeter) laser plasma…G. Bruhaug, H. G. Rinderknecht, Y. E et al.·Nov 8, 2022SaveLearn
Laser absorption spectroscopy studies to characterize Cs oven performances for the negative ion source SPIDERThe SPIDER H-/D- ion source is currently in operation in the Neutral Beam Test facility (NBTF) at Consorzio RFX (Padova, Italy) to prove the possibility of generating up to 40 A of negative ions,…M. Barbisan, S. Cristofaro, L. Zampieri et al.·Nov 8, 2022SaveLearn
Contour Extraction of Inertial Confinement Fusion Images By Data AugmentationX-Ray radiographs are one of the primary results from inertial confinement fusion (ICF) experiments. Issues such as scarcity of experimental data, high levels of noise in the data, lack of ground…Michael Falato, Bradley Wolfe, Nga Nguyen et al.·Nov 8, 2022SaveLearn
First Beam Characterization by Means of Emission Spectroscopy in the NIO1 ExperimentThe NIO1 experiment hosts a flexible RF H- ion source, developed by INFN-LNL and Consorzio RFX to improve the present concepts for the production and acceleration of negative ions. The source is also…M. Barbisan, B. Zaniol, M. Cavenago et al.·Nov 8, 2022SaveLearn