Effects of trapped electrons on ion reflection in an oblique shock wave

Journal Article · Mon Jun 15 04:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4922847· OSTI ID:22490930

Toida, Mieko ^[1]; Inagaki, Junya ^[2]

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1. National Institute for Fusion Science, Toki 509-5292 (Japan)
2. Department of Physics Nagoya University, Nagoya 464-8602 (Japan)

A magnetosonic shock wave propagating obliquely to an external magnetic field can trap electrons and accelerate them to ultrarelativistic energies. The trapped electrons excite two-dimensional (2D) electromagnetic fluctuations with finite wavenumbers along the shock front. We study effects of the trapped electrons on ion motions through the 2D fluctuations. It is analytically shown that the fraction of ions reflected from the shock front is enhanced by the 2D fluctuations. This is confirmed by 2D (two space coordinates and three velocities) relativistic, electromagnetic particle simulations with full ion and electron dynamics and calculation of test ions in the electromagnetic fields averaged along the shock front. A comparison between 2D and one-dimensional electromagnetic particle simulations is also shown.

• OSTI ID: 22490930
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 6 Vol. 22; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPARATIVE EVALUATIONS
ELECTROMAGNETIC FIELDS
FLUCTUATIONS
IONS
MAGNETIC FIELDS
ONE-DIMENSIONAL CALCULATIONS
RELATIVISTIC RANGE
SHOCK WAVES
TRAPPED ELECTRONS
TWO-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL SYSTEMS
VELOCITY