Improvement of all-optical Compton γ-rays source by reshaping colliding pulseAll-optical Compton scattering is a remarkable method of generating high-quality γ radiation source. It is easier achieved in experiment by employing a pulse based on laser wakefield accelerator.…Q. Yu, Y. Zhang, Q. Kong et al.·May 27, 2022SaveLearn
Enhanced collisionless laser absorption in strongly magnetized plasmasStrongly magnetizing a plasma adds a range of waves that do not exist in unmagnetized plasmas and enlarges the laser-plasma interaction (LPI) landscape. In this paper, we use particle-in-cell (PIC)…Lili Manzo, Matthew R. Edwards, Yuan Shi·May 26, 2022SaveLearn
Transfer learning driven design optimization for inertial confinement fusionTransfer learning is a promising approach to creating predictive models that incorporate simulation and experimental data into a common framework. In this technique, a neural network is first trained…K. D. Humbird, J. L. Peterson·May 26, 2022SaveLearn
Exchange-correlation effect in the charge response of a warm dense electron gasThe study of warm dense matter, widely existing in nature and laboratories, is challenging due to the interplay of quantum and classical fluctuations. We develop a variational diagrammatic Monte…Peng-Cheng Hou, Bao-Zong Wang, Kristjan Haule et al.·May 25, 2022SaveLearn
Investigation of atomic and molecular rates in plasma-edge simulations through experiment-simulation comparisonsDivertor plasma detachment is likely needed for the function of magnetically confined nuclear fusion. It greatly reduces the particle and heat flux incident on a target, and thus reduces the…A. C. Williams·May 25, 2022SaveLearn
Injection induced by coaxial laser interference in laser wakefield acceleratorsA new injection scheme using the interference of two coaxial laser pulses is proposed for generating high quality beams in laser wakefield accelerators. In this scheme, a relatively loosely focused…Jia Wang, Ming Zeng, Dazhang Li et al.·May 24, 2022SaveLearn
Coaxial tungsten hot plate-based cathode source for Cesium plasma production confined in MPD deviceA Multi-dipole line cusp configured Plasma Device (MPD) having six electromagnets with embedded Vacoflux-50 as a core material and a hot filament-based cathode for Argon plasma production has been…A. D. Patel, Zubin Shaikh, M. Sharma et al.·May 23, 2022SaveLearn
Three-dimensional direct numerical simulation of free-surface magnetohydrodynamic wave turbulenceWe report on three-dimensional direct numerical simulation of wave turbulence on the free surface of a magnetic fluid subjected to an external horizontal magnetic field. A transition from…Evgeny Kochurin, Guillaume Ricard, Nikolay Zubarev et al.·May 23, 2022SaveLearn
Testing the conservative character of particle simulations: I. Canonical and noncanonical guiding center model in Boozer coordinatesThe guiding center (GC) Lagrangian in Boozer coordinates for toroidally confined plasmas can be cast into canonical form by eliminating a term containing the covariant component BΨ P of…Andreas Bierwage, Roscoe B. White, Akinobu Matsuyama·May 23, 2022SaveLearn
Collisional ionisation and recombination effects on coalescence instability in chromospheric partially ionised plasmasPlasmoid-mediated fast magnetic reconnection plays a fundamental role in driving explosive dynamics and heating, but relatively little is known about how it develops in partially ionised plasmas…Giulia Murtas, Andrew Hillier, Ben Snow·May 23, 2022SaveLearn
Characteristics of ion beams by laser acceleration in the Coulomb explosion regimeIn the Coulomb explosion acceleration regime, an ion bunch with a narrow energy range exhibits a thin shell shape with a certain diameter. The ion cloud has a layered structure of these ion bunches…Toshimasa Morita·May 20, 2022SaveLearn
Propagation of Compressional Alfvén Waves in a Magnetized Pair Plasma MediumThe reductive perturbation approach was used to explore the nonlinear propagation of fast (compressive) and slow (rarefactive) electron-position (EP) magneto-acoustic (EPMA) modes in an EP plasma…T. I. Rajib, S. Sultana·May 20, 2022SaveLearn
Derivation of the Kelbg potential/functionalThe density matrix for a system of particles interacting via the Coulomb potential is obtained in the high--temperature limit following almost entirely the original work by Kelbg. For this purpose…G. S. Demyanov, P. R. Levashov·May 19, 2022SaveLearn
Hydrogen-like ions in plasma environmentThe behavior of H-like ions embedded in astrophysical plasmas in the form of dense, strongly and weakly coupled plasmas are investigated. In these, the increase and decrease in temperature is…Neetik Mukherjee, Chandra Nath Patra, Amlan K. Roy·May 18, 2022SaveLearn
Energetic Particle Perpendicular Diffusion: Simulations and Theory in Noisy Reduced Magnetohydrodynamic TurbulenceThe transport of energetic charged particles (e.g., cosmic rays) in turbulent magnetic fields is usually characterized in terms of the diffusion parallel and perpendicular to a large-scale (or mean)…A. P. Snodin, T. Jitsuk, D. Ruffolo et al.·May 18, 2022SaveLearn
Carrier-envelope phase controlled dynamics of relativistic electron beams in a laser-wakefield acceleratorIn laser-wakefield acceleration, an ultra-intense laser pulse is focused into an underdense plasma in order to accelerate electrons to relativistic velocities. In most cases, the pulses consist of…Lucas Rovige, Joséphine Monzac, Julius Huijts et al.·May 17, 2022SaveLearn
Physics-informed machine learning techniques for edge plasma turbulence modelling in computational theory and experimentEdge plasma turbulence is critical to the performance of magnetic confinement fusion devices. Towards better understanding edge turbulence in both theory and experiment, a custom-built…Abhilash Mathews·May 16, 2022SaveLearn
Transport, flow topology and Lagrangian conditional statistics in edge plasma turbulenceLagrangian statistics and particle transport in edge plasma turbulence are investigated using the Hasegawa-Wakatani model and its modified version. The latter shows the emergence of pronounced zonal…Benjamin Kadoch, Diego del-Castillo-Negrete, Wouter J. T. Bos et al.·May 14, 2022SaveLearn
The clamped intensity of femtosecond laser pulses varying with gas pressure in the presence of external focusingWe perform a theoretical investigation of the clamped laser intensity inside the filament plasma as a function of gas pressure with external focusing. Unlike the clamped intensity under the…Quanjun Wang, Yuxuan Zhang, Yue Zheng et al.·May 14, 2022SaveLearn
PSI-Vlasov equationA new equation for describing physical systems with radiation is obtained in this paper. Examples of such systems can be found in plasma physics, accelerator physics (synchrotron radiation) and…E. E. Perepelkin, B. I. Sadovnikov, N. G. Inozemtseva et al.·May 13, 2022SaveLearn
Machine learning methods for Schlieren imaging of a plasma channel in tenuous atomic vaporWe investigate the usage of a Schlieren imaging setup to measure the geometrical dimensions of a plasma channel in atomic vapor. Near resonant probe light is used to image the plasma channel in a…Gábor Bíró, Mihály Pocsai, Imre Ferenc Barna et al.·May 13, 2022SaveLearn
OpenDust: A fast GPU-accelerated code for calculation forces, acting on microparticles in a plasma flowWe present the first open-source, GPU-based code for complex plasmas. The code, OpenDust, aims to provide researchers both experimenters and theorists user-friendly and high-performance tool for…D. Kolotinskii, A. Timofeev·May 13, 2022SaveLearn
Electron power absorption in capacitively coupled neon-oxygen plasmas: a comparison of experimental and computational resultsPhase Resolved Optical Emission Spectroscopy (PROES) measurements combined with 1d3v Particle-in-Cell/Monte Carlo Collisions (PIC/MCC) simulations are used to study the electron power absorption and…A. Derzsi, P. Hartmann, M. Vass et al.·May 13, 2022SaveLearn
Conservative Projection Between Finite Element and Particle BasesParticle-in-Cell (PIC) methods employ particle representations of unknown fields, but also employ continuum fields for other parts of the problem. Thus projection between particle and continuum bases…Joseph V. Pusztay, Matthew G. Knepley, Mark F. Adams·May 13, 2022SaveLearn
Dynamics of radiating particles in current sheets with a transverse magnetic field componentUpcoming multipetawatt laser facilities are capable of inducing effects of quantum electrodynamics (QED) in laser-plasma interaction such as strong radiation reaction and QED cascades, both of which…A. Muraviev, A. Bashinov·May 12, 2022SaveLearn