Control and optimization of a staged laser-wakefield accelerator

G. Golovin, S. Banerjee, S. Chen, N. Powers, C. Liu, W. Yan, J. Zhang, P. Zhang, B. Zhao, D. Umstadter

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We report results of an experimental study of laser-wakefield acceleration of electrons, using a staged device based on a double-jet gas target that enables independent injection and acceleration stages. This novel scheme is shown to produce stable, quasi-monoenergetic, and tunable electron beams. We show that optimal accelerator performance is achieved by systematic variation of five critical parameters. For the injection stage, we show that the amount of trapped charge is controlled by the gas density, composition, and laser power. For the acceleration stage, the gas density and the length of the jet are found to determine the final electron energy. This independent control over both the injection and acceleration processes enabled independent control over the charge and energy of the accelerated electron beam while preserving the quasi-monoenergetic character of the beam. We show that the charge and energy can be varied in the ranges of 2-45 pC, and 50-450 MeV, respectively. This robust and versatile electron accelerator will find application in the generation of high-brightness and controllable x-rays, and as the injector stage for more conventional devices.

Original languageEnglish (US)
Pages (from-to)375-380
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume830
DOIs
StatePublished - Sep 11 2016

Fingerprint

Particle accelerators
accelerators
Density of gases
optimization
Lasers
gas density
injection
lasers
Electron beams
electron beams
electron accelerators
gas jets
Electrons
injectors
preserving
Luminance
brightness
electron energy
X rays
energy

Keywords

  • Ionization-assisted injection
  • Laser wakefield acceleration

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Control and optimization of a staged laser-wakefield accelerator. / Golovin, G.; Banerjee, S.; Chen, S.; Powers, N.; Liu, C.; Yan, W.; Zhang, J.; Zhang, P.; Zhao, B.; Umstadter, D.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 830, 11.09.2016, p. 375-380.

Research output: Contribution to journalArticle

Golovin, G. ; Banerjee, S. ; Chen, S. ; Powers, N. ; Liu, C. ; Yan, W. ; Zhang, J. ; Zhang, P. ; Zhao, B. ; Umstadter, D. / Control and optimization of a staged laser-wakefield accelerator. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2016 ; Vol. 830. pp. 375-380.
@article{cd4e9b74339d4c919d479c01d2da158a,
title = "Control and optimization of a staged laser-wakefield accelerator",
abstract = "We report results of an experimental study of laser-wakefield acceleration of electrons, using a staged device based on a double-jet gas target that enables independent injection and acceleration stages. This novel scheme is shown to produce stable, quasi-monoenergetic, and tunable electron beams. We show that optimal accelerator performance is achieved by systematic variation of five critical parameters. For the injection stage, we show that the amount of trapped charge is controlled by the gas density, composition, and laser power. For the acceleration stage, the gas density and the length of the jet are found to determine the final electron energy. This independent control over both the injection and acceleration processes enabled independent control over the charge and energy of the accelerated electron beam while preserving the quasi-monoenergetic character of the beam. We show that the charge and energy can be varied in the ranges of 2-45 pC, and 50-450 MeV, respectively. This robust and versatile electron accelerator will find application in the generation of high-brightness and controllable x-rays, and as the injector stage for more conventional devices.",
keywords = "Ionization-assisted injection, Laser wakefield acceleration",
author = "G. Golovin and S. Banerjee and S. Chen and N. Powers and C. Liu and W. Yan and J. Zhang and P. Zhang and B. Zhao and D. Umstadter",
year = "2016",
month = "9",
day = "11",
doi = "10.1016/j.nima.2016.06.022",
language = "English (US)",
volume = "830",
pages = "375--380",
journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",
issn = "0168-9002",
publisher = "Elsevier",

}

TY - JOUR

T1 - Control and optimization of a staged laser-wakefield accelerator

AU - Golovin, G.

AU - Banerjee, S.

AU - Chen, S.

AU - Powers, N.

AU - Liu, C.

AU - Yan, W.

AU - Zhang, J.

AU - Zhang, P.

AU - Zhao, B.

AU - Umstadter, D.

PY - 2016/9/11

Y1 - 2016/9/11

N2 - We report results of an experimental study of laser-wakefield acceleration of electrons, using a staged device based on a double-jet gas target that enables independent injection and acceleration stages. This novel scheme is shown to produce stable, quasi-monoenergetic, and tunable electron beams. We show that optimal accelerator performance is achieved by systematic variation of five critical parameters. For the injection stage, we show that the amount of trapped charge is controlled by the gas density, composition, and laser power. For the acceleration stage, the gas density and the length of the jet are found to determine the final electron energy. This independent control over both the injection and acceleration processes enabled independent control over the charge and energy of the accelerated electron beam while preserving the quasi-monoenergetic character of the beam. We show that the charge and energy can be varied in the ranges of 2-45 pC, and 50-450 MeV, respectively. This robust and versatile electron accelerator will find application in the generation of high-brightness and controllable x-rays, and as the injector stage for more conventional devices.

AB - We report results of an experimental study of laser-wakefield acceleration of electrons, using a staged device based on a double-jet gas target that enables independent injection and acceleration stages. This novel scheme is shown to produce stable, quasi-monoenergetic, and tunable electron beams. We show that optimal accelerator performance is achieved by systematic variation of five critical parameters. For the injection stage, we show that the amount of trapped charge is controlled by the gas density, composition, and laser power. For the acceleration stage, the gas density and the length of the jet are found to determine the final electron energy. This independent control over both the injection and acceleration processes enabled independent control over the charge and energy of the accelerated electron beam while preserving the quasi-monoenergetic character of the beam. We show that the charge and energy can be varied in the ranges of 2-45 pC, and 50-450 MeV, respectively. This robust and versatile electron accelerator will find application in the generation of high-brightness and controllable x-rays, and as the injector stage for more conventional devices.

KW - Ionization-assisted injection

KW - Laser wakefield acceleration

UR - http://www.scopus.com/inward/record.url?scp=84974575281&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84974575281&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2016.06.022

DO - 10.1016/j.nima.2016.06.022

M3 - Article

AN - SCOPUS:84974575281

VL - 830

SP - 375

EP - 380

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

SN - 0168-9002

ER -