Electron beam acoustic and magneto-acoustic modes in a magnetized beam-plasma system

Autor:	N.L. Tsintsadze, V.K. Jain
Rok vydání:	1990
Předmět:	Physics business.industry General Physics and Astronomy Electron Plasma Kinetic energy symbols.namesake Optics Dispersion relation symbols Cathode ray Wavenumber Atomic physics business Debye length Beam (structure)
Zdroj:	Physics Letters A. 148:269-271
ISSN:	0375-9601
DOI:	10.1016/0375-9601(90)90989-2
Popis:	The dispersion relation characterizing electrostatic modes in a cold magnetized plasma penetrated by a hot electron beam is solved analytically. In the limit k 2 λ 2 b ⪡1 where k is the wavenumber of the mode and λ b is the Debye length of beam elect rons, two new modes, viz. the electron acoustic and the magneto-acoustic mode, are found to exist. Expressions for the growth rate and threshold beam energy required for the onset of the kinetic instabilities of these modes are obtained.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c243ebbed17d26556b6c9b8bdf1ad2c4 https://doi.org/10.1016/0375-9601(90)90989-2 Zobrazit plný text záznamu