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

Hanahoe, Kieran and Xia, Guoxing and Islam, Mohammad and Li, Yangmei and Mete-Apsimon, Öznur and Hidding, Bernhard and Smith, Jonathan (2017) Simulation study of a passive plasma beam dump using varying plasma density. Physics of Plasmas, 24 (2). 023120. ISSN 1070-664X (https://doi.org/10.1063/1.4977449)

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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.

  • Item type:Article
    ID code:69390
    Dates:
    Date
    Event
    27 February 2017
    Published
    10 February 2017
    Accepted
    Notes:(c) AIP Publishing
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:15 Aug 2019 11:18
    Last modified:17 Apr 2024 00:34
    URI:https://strathprints.strath.ac.uk/id/eprint/69390
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