Efficiency and energy spread in laser-wakefield acceleration

A.J.W. Reitsma, R.A. Cairns, R. Bingham, D.A. Jaroszynski

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The theoretical limits on efficiency and energy spread of the laser-wakefield accelerator are investigated using a one-dimensional model. Modifications, both of the wakefield due to the electron bunch, and of the laser pulse shape due to the varying permittivity of the plasma, are described self-consistently. It is found that a short laser pulse gives a higher efficiency than a long laser pulse with the same initial energy. Energy spread can be minimized by optimizing bunch length and bunch charge such that the variation of the accelerating force along the length of the bunch is minimized. An inherent trade-off between energy spread and efficiency exists.
LanguageEnglish
Pages085004-1
Number of pages85003
JournalPhysical Review Letters
Volume94
Issue number8
DOIs
Publication statusPublished - Mar 2005

Fingerprint

lasers
pulses
energy
accelerators
permittivity
electrons

Keywords

  • energy efficiencey
  • lasers
  • electron bunch
  • plasma

Cite this

@article{b396be6ce89c47f193fee36f5502856d,
title = "Efficiency and energy spread in laser-wakefield acceleration",
abstract = "The theoretical limits on efficiency and energy spread of the laser-wakefield accelerator are investigated using a one-dimensional model. Modifications, both of the wakefield due to the electron bunch, and of the laser pulse shape due to the varying permittivity of the plasma, are described self-consistently. It is found that a short laser pulse gives a higher efficiency than a long laser pulse with the same initial energy. Energy spread can be minimized by optimizing bunch length and bunch charge such that the variation of the accelerating force along the length of the bunch is minimized. An inherent trade-off between energy spread and efficiency exists.",
keywords = "energy efficiencey, lasers, electron bunch, plasma",
author = "A.J.W. Reitsma and R.A. Cairns and R. Bingham and D.A. Jaroszynski",
year = "2005",
month = "3",
doi = "10.1103/PhysRevLett.94.085004",
language = "English",
volume = "94",
pages = "085004--1",
journal = "Physical Review Letters",
issn = "0031-9007",
number = "8",

}

Efficiency and energy spread in laser-wakefield acceleration. / Reitsma, A.J.W.; Cairns, R.A.; Bingham, R.; Jaroszynski, D.A.

In: Physical Review Letters, Vol. 94, No. 8, 03.2005, p. 085004-1.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Efficiency and energy spread in laser-wakefield acceleration

AU - Reitsma, A.J.W.

AU - Cairns, R.A.

AU - Bingham, R.

AU - Jaroszynski, D.A.

PY - 2005/3

Y1 - 2005/3

N2 - The theoretical limits on efficiency and energy spread of the laser-wakefield accelerator are investigated using a one-dimensional model. Modifications, both of the wakefield due to the electron bunch, and of the laser pulse shape due to the varying permittivity of the plasma, are described self-consistently. It is found that a short laser pulse gives a higher efficiency than a long laser pulse with the same initial energy. Energy spread can be minimized by optimizing bunch length and bunch charge such that the variation of the accelerating force along the length of the bunch is minimized. An inherent trade-off between energy spread and efficiency exists.

AB - The theoretical limits on efficiency and energy spread of the laser-wakefield accelerator are investigated using a one-dimensional model. Modifications, both of the wakefield due to the electron bunch, and of the laser pulse shape due to the varying permittivity of the plasma, are described self-consistently. It is found that a short laser pulse gives a higher efficiency than a long laser pulse with the same initial energy. Energy spread can be minimized by optimizing bunch length and bunch charge such that the variation of the accelerating force along the length of the bunch is minimized. An inherent trade-off between energy spread and efficiency exists.

KW - energy efficiencey

KW - lasers

KW - electron bunch

KW - plasma

UR - http://dx.doi.org/10.1103/PhysRevLett.94.085004

U2 - 10.1103/PhysRevLett.94.085004

DO - 10.1103/PhysRevLett.94.085004

M3 - Article

VL - 94

SP - 85004

EP - 85001

JO - Physical Review Letters

T2 - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 8

ER -