Streaming instabilities in converging geometry

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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.
LanguageEnglish
Title of host publicationRelativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings
EditorsDino A. Jaroszynski, MinSup Hur
Place of PublicationBellingham, Washington
Number of pages7
Volume11036
ISBN (Electronic)9781510627383
DOIs
Publication statusPublished - 24 Apr 2019
EventSPIE Optics + Optoelectronics - Clarion Congress Hotel, Prague, Czech Republic
Duration: 1 Apr 20194 Apr 2019

Conference

ConferenceSPIE Optics + Optoelectronics
CountryCzech Republic
CityPrague
Period1/04/194/04/19

Fingerprint

geometry
counters
electron beams
modulation
simulation

Keywords

  • streaming instabilities
  • plasma
  • current filamentation instabilities
  • converging geometry
  • focusing electron beams

Cite this

Inigo Gamiz, L. I., Ersfeld, B., Yoffe, S. R., Cairns, R. A., & Jaroszynski, D. A. (2019). Streaming instabilities in converging geometry. In D. A. Jaroszynski, & M. Hur (Eds.), Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings (Vol. 11036). [1103606] Bellingham, Washington. https://doi.org/10.1117/12.2524105
Inigo Gamiz, Lucas I. ; Ersfeld, Bernhard ; Yoffe, Samuel R. ; Cairns, R. Alan ; Jaroszynski, Dino A. / Streaming instabilities in converging geometry. Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings. editor / Dino A. Jaroszynski ; MinSup Hur. Vol. 11036 Bellingham, Washington, 2019.
@inproceedings{9c021ceb8fe8443a864a7b45a22ed3bf,
title = "Streaming instabilities in converging geometry",
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.",
keywords = "streaming instabilities, plasma, current filamentation instabilities, converging geometry, focusing electron beams",
author = "{Inigo Gamiz}, {Lucas I.} and Bernhard Ersfeld and Yoffe, {Samuel R.} and Cairns, {R. Alan} and Jaroszynski, {Dino A.}",
year = "2019",
month = "4",
day = "24",
doi = "10.1117/12.2524105",
language = "English",
volume = "11036",
editor = "Jaroszynski, {Dino A.} and MinSup Hur",
booktitle = "Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings",

}

Inigo Gamiz, LI, Ersfeld, B, Yoffe, SR, Cairns, RA & Jaroszynski, DA 2019, Streaming instabilities in converging geometry. in DA Jaroszynski & M Hur (eds), Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings. vol. 11036, 1103606, Bellingham, Washington, SPIE Optics + Optoelectronics, Prague, Czech Republic, 1/04/19. https://doi.org/10.1117/12.2524105

Streaming instabilities in converging geometry. / Inigo Gamiz, Lucas I.; Ersfeld, Bernhard; Yoffe, Samuel R.; Cairns, R. Alan; Jaroszynski, Dino A.

Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings. ed. / Dino A. Jaroszynski; MinSup Hur. Vol. 11036 Bellingham, Washington, 2019. 1103606.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

TY - GEN

T1 - Streaming instabilities in converging geometry

AU - Inigo Gamiz, Lucas I.

AU - Ersfeld, Bernhard

AU - Yoffe, Samuel R.

AU - Cairns, R. Alan

AU - Jaroszynski, Dino A.

PY - 2019/4/24

Y1 - 2019/4/24

N2 - 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.

AB - 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.

KW - streaming instabilities

KW - plasma

KW - current filamentation instabilities

KW - converging geometry

KW - focusing electron beams

U2 - 10.1117/12.2524105

DO - 10.1117/12.2524105

M3 - Conference contribution book

VL - 11036

BT - Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings

A2 - Jaroszynski, Dino A.

A2 - Hur, MinSup

CY - Bellingham, Washington

ER -

Inigo Gamiz LI, Ersfeld B, Yoffe SR, Cairns RA, Jaroszynski DA. Streaming instabilities in converging geometry. In Jaroszynski DA, Hur M, editors, Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III - Proceedings. Vol. 11036. Bellingham, Washington. 2019. 1103606 https://doi.org/10.1117/12.2524105