Simulation study of a passive plasma beam dump using varying plasma density

Kieran Hanahoe, Guoxing Xia, Mohammad Islam, Yangmei Li, Öznur Mete-Apsimon, Bernhard Hidding, Jonathan Smith

Research output: Contribution to journalArticle

2 Citations (Scopus)
1 Downloads (Pure)

Abstract

A plasma beam dump uses the collective oscillations of plasma electrons to absorb the kinetic energy of a particle beam. In this paper, a modified passive plasma beam dump scheme is proposed using either a gradient or stepped plasma profile to maintain a higher decelerating gradient compared with a uniform plasma. The improvement is a result of the plasma wavelength change preventing the re-acceleration of low energy particles. Particle-in-cell simulation results show that both stepped and gradient plasma profiles can achieve improved energy loss compared with a uniform plasma for an electron bunch of parameters routinely achieved in laser wakefield acceleration.

Original languageEnglish
Article number023120
Number of pages6
JournalPhysics of Plasmas
Volume24
Issue number2
DOIs
Publication statusPublished - 27 Feb 2017

Keywords

  • plasma beam dump
  • plasma electrons
  • particle acceleration

Cite this

Hanahoe, K., Xia, G., Islam, M., Li, Y., Mete-Apsimon, Ö., Hidding, B., & Smith, J. (2017). Simulation study of a passive plasma beam dump using varying plasma density. Physics of Plasmas, 24(2), [023120]. https://doi.org/10.1063/1.4977449