Influence of space charge effect in femtosecond electron bunch on coherent transition radiation spectrum

M. Shevelev, A. Aryshev, Y. Honda, N. Terunuma, J. Urakawa

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper numerically and experimentally demonstrates the influence of the space charge forces in short electron bunches on the spectrum of coherent transition radiation. To estimate and optimize dimensions of a short electron bunches produced by the KEK LUCX RF gun, ASTRA software was employed. Obtained results indicate that the modification of the femtosecond UV laser pulse transverse profile allows to decrease the space charge forces. The simulation results were confirmed experimentally with the good agreement.

Original languageEnglish
Pages (from-to)134-138
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume402
DOIs
Publication statusPublished - 1 Jul 2017
Externally publishedYes

Fingerprint

radiation spectra
Electron transitions
Electric space charge
space charge
Radiation
Electrons
ultraviolet lasers
Laser pulses
electrons
computer programs
radiation
estimates
profiles
pulses
simulation

Keywords

  • Coherent transition radiation
  • RF gun
  • Space charge effect
  • THz radiation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

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abstract = "This paper numerically and experimentally demonstrates the influence of the space charge forces in short electron bunches on the spectrum of coherent transition radiation. To estimate and optimize dimensions of a short electron bunches produced by the KEK LUCX RF gun, ASTRA software was employed. Obtained results indicate that the modification of the femtosecond UV laser pulse transverse profile allows to decrease the space charge forces. The simulation results were confirmed experimentally with the good agreement.",
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AU - Shevelev, M.

AU - Aryshev, A.

AU - Honda, Y.

AU - Terunuma, N.

AU - Urakawa, J.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - This paper numerically and experimentally demonstrates the influence of the space charge forces in short electron bunches on the spectrum of coherent transition radiation. To estimate and optimize dimensions of a short electron bunches produced by the KEK LUCX RF gun, ASTRA software was employed. Obtained results indicate that the modification of the femtosecond UV laser pulse transverse profile allows to decrease the space charge forces. The simulation results were confirmed experimentally with the good agreement.

AB - This paper numerically and experimentally demonstrates the influence of the space charge forces in short electron bunches on the spectrum of coherent transition radiation. To estimate and optimize dimensions of a short electron bunches produced by the KEK LUCX RF gun, ASTRA software was employed. Obtained results indicate that the modification of the femtosecond UV laser pulse transverse profile allows to decrease the space charge forces. The simulation results were confirmed experimentally with the good agreement.

KW - Coherent transition radiation

KW - RF gun

KW - Space charge effect

KW - THz radiation

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