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Proceedings Paper

Streaming instabilities in converging geometry
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Paper Abstract

We present an investigation into counter-streaming electron beams converging towards, and diverging from, a single point in two dimensions, leading to two-stream and current filamentation instabilities, which have radial and azimuthal density modulations, respectively. Using a semi-analytical approach and numerical simulations, we find no evidence for the two-stream instability in this geometry, but show that the system is unstable to the development of current filamentation.

Paper Details

Date Published: 24 April 2019
PDF: 7 pages
Proc. SPIE 11036, Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III, 1103606 (24 April 2019); doi: 10.1117/12.2524105
Show Author Affiliations
Lucas I. Inigo Gamiz, Univ. of Strathclyde (United Kingdom)
Bernhard Ersfeld, Univ. of Strathclyde (United Kingdom)
Samuel R. Yoffe, Univ. of Strathclyde (United Kingdom)
R. Alan Cairns, Univ. of St. Andrews (United Kingdom)
Dino A. Jaroszynski, Univ. of Strathclyde (United Kingdom)


Published in SPIE Proceedings Vol. 11036:
Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III
Dino A. Jaroszynski; MinSup Hur, Editor(s)

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