Independent control of laser wakefield-accelerated electron-beam parameters

G. Golovin, S. Chen, N. Powers, C. Liu, S. Banerjee, J. Zhang, M. Zeng, Z. Sheng, D. Umstadter

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

Abstract

By employing a pair of partially overlapped supersonic gas jets, we separated injection and acceleration stages of laser wakefield acceleration to produce stable, monoenergetic, and tunable electron beams. The first jet (injector) utilized a He/N2 mixture and resulted in electrons injected into the wake via ionization-assisted injection. These electrons were then accelerated in the second jet (accelerator) using pure He. By changing length and plasma density of the accelerator jet, we were able to tune electron energy in the 50 - 300 MeV range with energy spread of 10-30% and 20 pC charge. Simulations show that the injection region is limited within the overlap of the jets.

Original languageEnglish (US)
Title of host publicationLaser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III
EditorsKenneth W. D. Ledingham, Eric H. Esarey, Paul McKenna, Carl B. Schroeder, Paul R. Bolton, Klaus Spohr, Florian J. Gruner
PublisherSPIE
ISBN (Electronic)9781628416350
DOIs
Publication statusPublished - Jan 1 2015
EventLaser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III - Prague, Czech Republic
Duration: Apr 13 2015Apr 15 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9514
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherLaser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III
CountryCzech Republic
CityPrague
Period4/13/154/15/15

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Keywords

  • Acceleration
  • Ionization-assisted injection
  • Laser
  • Wakefield

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Golovin, G., Chen, S., Powers, N., Liu, C., Banerjee, S., Zhang, J., ... Umstadter, D. (2015). Independent control of laser wakefield-accelerated electron-beam parameters. In K. W. D. Ledingham, E. H. Esarey, P. McKenna, C. B. Schroeder, P. R. Bolton, K. Spohr, & F. J. Gruner (Eds.), Laser Acceleration of Electrons, Protons, and Ions III; and Medical Applications of Laser-Generated Beams of Particles III [951405] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9514). SPIE. https://doi.org/10.1117/12.2182707