Nonlinear evolution of the electron two-stream instability: Two-dimensional particle simulations
نویسندگان
چکیده
منابع مشابه
Nonlinear evolution of electron two-stream instability: Two-dimensional particle simulation
We study nonlinear evolution of electron two-stream instabilities in a two-dimensional system. Electron twostream and bump-on-tail instabilities are considered to be the most probable generation mechanisms of electrostatic solitary waves/electron holes observed in various regions of the Earth’s magnetosphere. To obtain detailed understanding on the nonlinear evolution of two-stream instability,...
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Two-stream instabilities in intense charged particle beams, described self-consistently by the nonlinear Vlasov-Maxwell equations, are studied using a 3D multispecies perturbative particle simulation method. The beam equilibrium, stability, and transport (BEST) code is used to simulate the linear and nonlinear properties of the electron-proton (e-p) two-stream instability observed in the Proton...
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[1] The kinetic electron firehose instability (EFI) is thought to be a crucial mechanism for constraining the observed electron anisotropy in expanding astrophysical plasmas, such as the solar wind. The EFI arises in a bi-Maxwellian plasma when the parallel temperature is greater than the perpendicular one, and its effect is to reduce anisotropy. We study this mechanism via kinetic linear theor...
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A strong, fast, transverse instability has long been observed at the Los Alamos Proton Storage Ring (PSR) where it is a limiting factor on peak intensity. Most of the available evidence, based on measurements of the unstable proton beam motion, is consistent with an electron-proton two-stream instability. The need for higher beam intensity at PSR [1] and for future highintensity, proton drivers...
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This paper is an analytical investigation of the transverse electron-proton (e-p) two-stream instability in a proton bunch propagating through a stationary electron background. The equations of motion, including the effect of damping, are derived for the centroids of the proton beam and the electron cloud. An approach is developed to solve the coupled linear centroid equations in the time domai...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2006
ISSN: 0148-0227
DOI: 10.1029/2006ja011762