TITLE

Generation of low-frequency electrostatic and electromagnetic waves as nonlinear consequences of beam–plasma interactions

AUTHOR(S)
Umeda, Takayuki
PUB. DATE
June 2008
SOURCE
Physics of Plasmas;Jun2008, Vol. 15 Issue 6, p064502
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Nonlinear evolution of the electron two-stream instability in a current-carrying plasma is examined by using a two-dimensional electromagnetic particle-in-cell simulation. Formation of electron phase-space holes is observed as an early nonlinear consequence of electron–beam–plasma interactions. Lower-hybrid waves, electrostatic, and electromagnetic whistler mode waves are also excited by different mechanisms during the ensuing nonlinear wave–particle interactions. It is shown by the present computer simulation with a large simulation domain and a long simulation time that these low-frequency waves can disturb the electrostatic equilibrium of electron phase-space holes, suggesting that the lifetime of electron phase-space holes sometimes becomes shorter in a current-carrying plasma.
ACCESSION #
32970331

 

Related Articles

  • Frequency Upshift and Radiation of the THz Electromagnetic Wave via an Ultrashort-Laser-Produced Ionization Front. Higashiguchi, Takeshi; Hasegawa, Hideyuki; Nishimai, Hirofumi; Yugami, Noboru; Muggli, Patric // AIP Conference Proceedings;1/22/2008, Vol. 1086 Issue 1, p701 

    We report the generation of radiation in the terahertz (THz) spectral region from an electrostatic field converted by a laser-produced relativistic ionization front. The THz radiation is generated through spatiotemporal change in electron density induced by a relativistic ionization front...

  • Stochastic ion behavior in subharmonic and superharmonic electrostatic waves. Ping-Kun Chia; Schmitz, L.; Conn, R. W. // Physics of Plasmas;May96, Vol. 3 Issue 5, p1545 

    Studies the dynamics of a charged particle in a magnetic field perturbed by electrostatic waves propagating transverse to the magnetic field. Dependence of the magnitude of the perturbation and perturbation frequency on the number of perturbating waves; Deviation of the particle motion from...

  • Formation of electrostatic structures by wakefield acceleration in ultrarelativistic plasma flows: Electron acceleration to cosmic ray energies. Dieckmann, M. E.; Shukla, P. K.; Eliasson, B. // Physics of Plasmas;Jun2006, Vol. 13 Issue 6, p062905 

    The ever increasing performance of supercomputers is now enabling kinetic simulations of extreme astrophysical and laser produced plasmas. Three-dimensional particle-in-cell (PIC) simulations of relativistic shocks have revealed highly filamented spatial structures and their ability to...

  • Field-aligned and transverse plasma-potential structures induced by electron cyclotron waves. Takahashi, K.; Kaneko, T.; Hatakeyama, R. // Applied Physics Letters;12/24/2007, Vol. 91 Issue 26, p261502 

    It is demonstrated that potential structures of a magnetized plasma column can be controlled by electron cyclotron waves of azimuthal mode number m=±1. A field-aligned plasma potential structure, i.e., an electric double layer with the potential jump corresponding to the ion flow energy is...

  • Crystal structure and the magnetic state of Pr0.5Sr0.5Co0.5Fe0.5O3. Troyanchuk, I. O.; Karpinsky, D. V.; Efimov, V. V.; Efimova, E.; Sikolenko, V.; Yusupov, R. // JETP Letters;May2008, Vol. 87 Issue 6, p306 

    The magnetic properties and crystal structure of the Pr0.5Sr0.5Co0.5Fe0.5O3 compound are studied by neutron and x-ray diffractions using synchrotron radiation. These measurements show that this compound is a dielectric spin glass with a magnetic moment freezing temperature of about 70 K. As...

  • Characteristic equation and properties of electron waves in periodic structures. Solntsev, V. // Journal of Communications Technology & Electronics;Dec2012, Vol. 57 Issue 12, p1287 

    The finite-difference theory of excitation of periodic waveguides is used to derive the characteristic equation for electron waves formed during interaction of an electron beam with forward and counter-propagating electromagnetic waves of periodic waveguides (slow-wave structures). The derived...

  • Electromagnetic absorption of a bimetallic spherical particle. Zavitaev, E. V. // Low Temperature Physics;Jul2005, Vol. 31 Issue 7, p587 

    The cross section for absorption of electromagnetic radiation in a bimetallic spherical particle are calculated. The general case of arbitrary values of the ratio of the radius of the core to the radius of the particle is considered. The boundary conditions adopted are the condition of diffuse...

  • Polarization bremsstrahlung in α decay. Amusia, M. Ya.; Zon, B.A.; Kretinin, I. Yu. // Journal of Experimental & Theoretical Physics;Sep2007, Vol. 105 Issue 2, p343 

    A mechanism of formation of electromagnetic radiation that accompanies α decay and is associated with the emission of photons by electrons of atomic shells due to the scattering of α particles by these atoms (polarization bremsstrahlung) is proposed. It is shown that, when the photon...

  • Drift mode in a bounded plasma having two-ion species. Ahmad, Ali; Sajid, M.; Saleem, H. // Physics of Plasmas;Jan2008, Vol. 15 Issue 1, p012105 

    The drift wave is investigated in a two-ion species plasma in several different cases. The global drift mode is studied in a plasma bounded in a cylinder having Gaussian density profile corresponding to different poloidal wavenumbers. The frequency of the mode becomes a little larger when it is...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics