Articles with "energetic particles" as a keyword



Time-dependent transport of energetic particles in magnetic turbulence: computer simulations versus analytical theory

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Published in 2018 at "Astrophysics and Space Science"

DOI: 10.1007/s10509-018-3338-6

Abstract: We explore numerically the transport of energetic particles in a turbulent magnetic field configuration. A test-particle code is employed to compute running diffusion coefficients as well as particle distribution functions in the different directions of… read more here.

Keywords: energetic particles; theory; transport; turbulence ... See more keywords

Perpendicular Transport of Energetic Particles in Magnetic Turbulence

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Published in 2020 at "Space Science Reviews"

DOI: 10.1007/s11214-020-0644-4

Abstract: Scientists have explored how energetic particles such as solar energetic particles and cosmic rays move through a magnetized plasma such as the interplanetary and interstellar medium since more than five decades. From a theoretical point… read more here.

Keywords: energetic particles; perpendicular transport; transport; transport energetic ... See more keywords
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Sixty Years of Element Abundance Measurements in Solar Energetic Particles

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Published in 2021 at "Space Science Reviews"

DOI: 10.1007/s11214-021-00845-4

Abstract: Sixty years ago the first observation was published showing solar energetic particles (SEPs) with a sampling of chemical elements with atomic numbers $6 \leq Z \leq 18$ 6 ≤ Z ≤ 18 above 40 MeV amu−1. Thus… read more here.

Keywords: fip; energetic particles; solar energetic; sep events ... See more keywords

Study of some characteristics of solar energetic particles and associated solar activities during 1996–2016

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Published in 2019 at "New Astronomy"

DOI: 10.1016/j.newast.2018.12.004

Abstract: Abstract Solar energetic particles (SEP) are believed to originate from two different sources, coronal mass ejections (CMEs) and solar flares. In this paper, we have also investigated some statistical properties such as speed, apparent angular… read more here.

Keywords: time; associated solar; study; 1996 2016 ... See more keywords

Fractional Fick’s law and uphill transport of energetic particles at collisionless shocks

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Published in 2025 at "Journal of Plasma Physics"

DOI: 10.1017/s0022377825100871

Abstract: In plasmas and in astrophysical systems, particle diffusion faster than normal, namely superdiffusion, has been detected, calling for a generalisation of Fick’s law and of the transport equation. Formally, superdiffusive transport is often described by… read more here.

Keywords: fractional fick; transport; collisionless shocks; fick law ... See more keywords

Time-dependent perpendicular transport of energetic particles in magnetic turbulence with transverse complexity

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Published in 2017 at "Physics of Plasmas"

DOI: 10.1063/1.4982805

Abstract: The motion of energetic particles in magnetic turbulence across a mean magnetic field is explored analytically. The approach presented here allows for a full time-dependent description of the transport, including compound sub-diffusion. For the first… read more here.

Keywords: energetic particles; turbulence; time; time dependent ... See more keywords

Toroidal modelling of resistive internal kink and fishbone instabilities

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Published in 2018 at "Physics of Plasmas"

DOI: 10.1063/1.5022208

Abstract: The influence of energetic particles and plasma resistivity on the n=1 ( n is the toroidal mode number) internal kink and fishbone modes in tokamak plasmas is numerically investigated, using the full toroidal, resistive magnetohydrodynamic-kinetic… read more here.

Keywords: mode; energetic particles; internal kink; resistive internal ... See more keywords

Nonlinear evolution of energetic-particles-driven waves in collisionless plasmas

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Published in 2018 at "Physics of Plasmas"

DOI: 10.1063/1.5028528

Abstract: A one-dimensional electrostatic collisionless particle-in-cell code has been developed to study the nonlinear interaction between electrostatic waves and energetic particles (EPs). For a single wave, the results are clear and agree well with the existing… read more here.

Keywords: order; energetic particles; nonlinear evolution; second order ... See more keywords

Anisotropy of energetic particles and thermal transport on internal kink stability in HL-3

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Published in 2024 at "Physics of Plasmas"

DOI: 10.1063/5.0234580

Abstract: The kinetic effects of Neutral Beam Injection (NBI) induced energetic particles (EPs) on the stability of internal kink mode are numerically investigated in the presence of anisotropic thermal transport for the new medium-sized tokamak HL-3,… read more here.

Keywords: transport; stability; internal kink; thermal transport ... See more keywords

Theoretical studies and simulations of mode structure symmetry breaking in tokamak plasmas in the presence of energetic particles

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Published in 2019 at "Plasma Physics and Controlled Fusion"

DOI: 10.1088/1361-6587/ab00c6

Abstract: breaking in tokamak plasmas Z. X. Lu, X. Wang, A. Bottino, E. Fable, W. Hornsby, Ph. Lauber, F. Zonca, C. Angioni Max-Planck-Institut f?̈?r Plasmaphysik, Garching, Germany C.R. ENEA Frascati C.P. 65, 00044 Frascati, Italy The… read more here.

Keywords: symmetry breaking; mode structure; symmetry; breaking tokamak ... See more keywords

Simulation of non-resonant high-order harmonics energetic particle modes in tokamak plasmas

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Published in 2024 at "Physica Scripta"

DOI: 10.1088/1402-4896/ad4f61

Abstract: Based on the parameters of the HL-2A experiment, the effect of energetic particles (EPs) on non-resonant high-order harmonics energetic particle modes (EPMs) with q min>1 is investigated in the present work. Hybrid kinetic-magnetohydrodynamic nonlinear code… read more here.

Keywords: resonant high; non resonant; order harmonics; harmonics ... See more keywords