Results 11 to 20 of about 773,976 (338)

Quantitatively consistent computation of coherent and incoherent radiation in particle-in-cell codes—A general form factor formalism for macro-particles [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A : Accelerators, Spectrometers, Detectors and Associated Equipment, 2018
Quantitative predictions from synthetic radiation diagnostics often have to consider all accelerated particles. For particle-in-cell (PIC) codes, this not only means including all macro-particles but also taking into account the discrete electron ...
R. Pausch   +6 more
semanticscholar   +1 more source

Physics-informed neural networks for solving forward and inverse Vlasov–Poisson equation via fully kinetic simulation

open access: yesMachine Learning: Science and Technology, 2023
The Vlasov–Poisson equation is one of the most fundamental models in plasma physics. It has been widely used in areas such as confined plasmas in thermonuclear research and space plasmas in planetary magnetospheres.
Baiyi Zhang   +5 more
doaj   +1 more source

2D Planar PIC Simulation of Space Charge Limited Current With Geometrical Parameters, Varying Temporal-Profile and Initial Velocities

open access: yesIEEE Access, 2022
In this paper, we simulated the space-charge effect current by the full electromagnetic particle-in-cell (PIC) code UNIPIC in a planar gap. Compared with Lau’s numerical work, we introduce the applied voltage $U$ , gap separation $D ...
Jiannan Chen   +4 more
doaj   +1 more source

An angular momentum conserving affine-particle-in-cell method [PDF]

open access: yesJournal of Computational Physics, 2016
We present a new technique for transferring momentum and velocity between particles and grid with Particle-In-Cell (PIC) [1] calculations which we call Affine-Particle-In-Cell (APIC).
Chenfanfu Jiang   +2 more
semanticscholar   +1 more source

Numerical investigation of non-linear inverse Compton scattering in double-layer targets

open access: yesFrontiers in Physics, 2023
Non-linear inverse Compton scattering (NICS) is of significance in laser-plasma physics and for application-relevant laser-driven photon sources. Given this interest, we investigated this synchrotron-like photon emission in a promising configuration ...
Marta Galbiati   +3 more
doaj   +1 more source

A spectral, quasi-cylindrical and dispersion-free Particle-In-Cell algorithm [PDF]

open access: yesComputer Physics Communications, 2015
We propose a spectral Particle-In-Cell (PIC) algorithm that is based on the combination of a Hankel transform and a Fourier transform. For physical problems that have close-to-cylindrical symmetry, this algorithm can be much faster than full 3D PIC ...
R. Lehe   +4 more
semanticscholar   +1 more source

Sparse grid reconstructions for Particle-In-Cell methods

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2022
In this article, we propose and analyse Particle-In-Cell (PIC) methods embedding sparse grid reconstructions such as those introduced in Ricketson and Cerfon [Plasma Phys. Control. Fusion 59 (2017) 024002] and Muralikrishnan et al. [J. Comput. Phys. X 11 (2021) 100094].
Deluzet, Fabrice   +4 more
openaire   +4 more sources

Parameter Optimization of Hole-Slot-Type Magnetron for Controlling Resonant Frequency of Linear Accelerator 6 MeV by Reverse Engineering Technique

open access: yesApplied Sciences, 2021
This paper presents the parameter optimization of a twelve-hole-slot-type magnetron based on a reverse engineering technique to improve a 6-MeV linear accelerator (LINAC) operation for fruit sterilization. The magnetron structural dimensions are measured
Nattawat Yachum   +3 more
doaj   +1 more source

Electron mirror instability: particle-in-cell simulations [PDF]

open access: yesJournal of Plasma Physics, 2018
Properties of the electron mirror instability and its competition with the usually dominant whistler (electron cyclotron) instability driven by the electron perpendicular temperature anisotropy are investigated at the linear level using a Vlasov linear solver and at the nonlinear level using a two-dimensional full particle code.
Petr Hellinger, Štěpán Štverák
openaire   +3 more sources

Performance Simulation of a 5 kW hall Thruster

open access: yesFrontiers in Materials, 2021
Hall thruster is a kind of plasma optics device, which is used mainly in space propulsion. To simulate the discharge process of plasma and the performance of a 5 kW hall thruster, a two-dimensional PIC-MCC model in the R-Z plane is built.
L. Yang, P. Y. Wang, T. Wang
doaj   +1 more source

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