Volume 77, Number 4, February 2007
|Number of page(s)||4|
|Section||Physics of Gases, Plasmas and Electric Discharges|
|Published online||13 February 2007|
Dissipative instability of overlimiting electron beam in a nonuniformcross-section waveguide
Institute of Radiophysics and Electronics, National Academy of Sciences of Armenia - 1 Alikhanyan str., Ashtarack, 378410, Armenia
Corresponding author: firstname.lastname@example.org
Accepted: 12 December 2006
The effect of dissipation on the instability caused by growing of the slow space charge wave of electron beam is studied. High level of dissipation leads to a new type of dissipative streaming instability. Its growth rate has a previously unknown, inverse proportional dependence on dissipation. The new dependence is a result of superposition of two factors, both of which lead to excitation of the beam wave with negative energy: increasing of beam current and dissipation. Basic parameters of the instability indicate that it can be an important additional factor upon design of high-power high-frequency devices based on relativistic e-beams.
PACS: 52.35.-g – Waves, oscillations, and instabilities in plasmas and intense beams
© Europhysics Letters Association, 2007
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.