Narrow spread electron beams from a laser-plasma wakefield accelerator

S. M. Wiggins, M. P. Anania, E. Brunetti, S. Cipiccia, B. Ersfeld, M. R. Islam, R. C. Issac, G. Raj, R. P. Shanks, G. Vieux, G. H. Welsh, W. Allan Gillespie, Allan M. MacLeod, D. A. Jaroszynski

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

6 Citations (Scopus)

Abstract

The Advanced Laser-Plasma High-Energy Accelerators towards X-rays (ALPHA-X) programme is developing laserplasma accelerators for the production of ultra-short electron bunches with subsequent generation of incoherent radiation pulses from plasma and coherent short-wavelength radiation pulses from a free-electron laser (FEL). The first quantitative measurements of the electron energy spectra have been made on the University of Strathclyde ALPHA-X wakefield acceleration beam line. A high peak power laser pulse (energy 900 mJ, duration 35 fs) is focused into a gas jet (nozzle length 2 mm) using an F/16 spherical mirror. Electrons from the laser-induced plasma are self-injected into the accelerating potential of the plasma density wake behind the laser pulse. Electron beams emitted from the plasma have been imaged downstream using a series of Lanex screens positioned along the beam line axis and the divergence of the electron beam has been measured to be typically in the range 1-3 mrad. Measurements of the electron energy spectrum, obtained using the ALPHA-X high resolution magnetic dipole spectrometer, are presented. The maximum central energy of the monoenergetic beam is 90 MeV and r.m.s. relative energy spreads as low as 0.8% are measured. The mean central energy is 82 MeV and mean relative energy spread is 1.1%. A theoretical analysis of this unexpectedly high electron beam quality is presented and the potential impact on the viability of FELs driven by electron beams from laser wakefield accelerators is examined.
Original languageEnglish
Title of host publicationSPIE Proceedings
Subtitle of host publicationHarnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond
EditorsDino A. Jaroszynski, Antoine Rousse
Place of PublicationBellingham, WA
Volume7359
DOIs
Publication statusPublished - 20 May 2009
EventHarnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond - Prague, Czech Republic
Duration: 21 Apr 200923 Apr 2009

Publication series

NameSPIE Proceedings
PublisherSPIE
Volume7359
ISSN (Print)0277-786X

Conference

ConferenceHarnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond
CountryCzech Republic
CityPrague
Period21/04/0923/04/09

Fingerprint

plasma accelerators
laser plasmas
electron beams
accelerators
energy
pulses
lasers
energy spectra
electron energy
jet nozzles
x rays
gas jets
radiation
magnetic dipoles
viability
free electron lasers
wakes
plasma density
divergence
electrons

Cite this

Wiggins, S. M., Anania, M. P., Brunetti, E., Cipiccia, S., Ersfeld, B., Islam, M. R., ... Jaroszynski, D. A. (2009). Narrow spread electron beams from a laser-plasma wakefield accelerator. In D. A. Jaroszynski, & A. Rousse (Eds.), SPIE Proceedings: Harnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond (Vol. 7359). (SPIE Proceedings; Vol. 7359). Bellingham, WA. https://doi.org/10.1117/12.820733
Wiggins, S. M. ; Anania, M. P. ; Brunetti, E. ; Cipiccia, S. ; Ersfeld, B. ; Islam, M. R. ; Issac, R. C. ; Raj, G. ; Shanks, R. P. ; Vieux, G. ; Welsh, G. H. ; Gillespie, W. Allan ; MacLeod, Allan M. ; Jaroszynski, D. A. / Narrow spread electron beams from a laser-plasma wakefield accelerator. SPIE Proceedings: Harnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond. editor / Dino A. Jaroszynski ; Antoine Rousse. Vol. 7359 Bellingham, WA, 2009. (SPIE Proceedings).
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title = "Narrow spread electron beams from a laser-plasma wakefield accelerator",
abstract = "The Advanced Laser-Plasma High-Energy Accelerators towards X-rays (ALPHA-X) programme is developing laserplasma accelerators for the production of ultra-short electron bunches with subsequent generation of incoherent radiation pulses from plasma and coherent short-wavelength radiation pulses from a free-electron laser (FEL). The first quantitative measurements of the electron energy spectra have been made on the University of Strathclyde ALPHA-X wakefield acceleration beam line. A high peak power laser pulse (energy 900 mJ, duration 35 fs) is focused into a gas jet (nozzle length 2 mm) using an F/16 spherical mirror. Electrons from the laser-induced plasma are self-injected into the accelerating potential of the plasma density wake behind the laser pulse. Electron beams emitted from the plasma have been imaged downstream using a series of Lanex screens positioned along the beam line axis and the divergence of the electron beam has been measured to be typically in the range 1-3 mrad. Measurements of the electron energy spectrum, obtained using the ALPHA-X high resolution magnetic dipole spectrometer, are presented. The maximum central energy of the monoenergetic beam is 90 MeV and r.m.s. relative energy spreads as low as 0.8{\%} are measured. The mean central energy is 82 MeV and mean relative energy spread is 1.1{\%}. A theoretical analysis of this unexpectedly high electron beam quality is presented and the potential impact on the viability of FELs driven by electron beams from laser wakefield accelerators is examined.",
author = "Wiggins, {S. M.} and Anania, {M. P.} and E. Brunetti and S. Cipiccia and B. Ersfeld and Islam, {M. R.} and Issac, {R. C.} and G. Raj and Shanks, {R. P.} and G. Vieux and Welsh, {G. H.} and Gillespie, {W. Allan} and MacLeod, {Allan M.} and Jaroszynski, {D. A.}",
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month = "5",
day = "20",
doi = "10.1117/12.820733",
language = "English",
isbn = "9780819476333",
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series = "SPIE Proceedings",
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Wiggins, SM, Anania, MP, Brunetti, E, Cipiccia, S, Ersfeld, B, Islam, MR, Issac, RC, Raj, G, Shanks, RP, Vieux, G, Welsh, GH, Gillespie, WA, MacLeod, AM & Jaroszynski, DA 2009, Narrow spread electron beams from a laser-plasma wakefield accelerator. in DA Jaroszynski & A Rousse (eds), SPIE Proceedings: Harnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond. vol. 7359, SPIE Proceedings, vol. 7359, Bellingham, WA, Harnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond, Prague, Czech Republic, 21/04/09. https://doi.org/10.1117/12.820733

Narrow spread electron beams from a laser-plasma wakefield accelerator. / Wiggins, S. M.; Anania, M. P.; Brunetti, E.; Cipiccia, S.; Ersfeld, B.; Islam, M. R.; Issac, R. C.; Raj, G.; Shanks, R. P.; Vieux, G.; Welsh, G. H.; Gillespie, W. Allan; MacLeod, Allan M.; Jaroszynski, D. A.

SPIE Proceedings: Harnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond. ed. / Dino A. Jaroszynski; Antoine Rousse. Vol. 7359 Bellingham, WA, 2009. (SPIE Proceedings; Vol. 7359).

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

TY - GEN

T1 - Narrow spread electron beams from a laser-plasma wakefield accelerator

AU - Wiggins, S. M.

AU - Anania, M. P.

AU - Brunetti, E.

AU - Cipiccia, S.

AU - Ersfeld, B.

AU - Islam, M. R.

AU - Issac, R. C.

AU - Raj, G.

AU - Shanks, R. P.

AU - Vieux, G.

AU - Welsh, G. H.

AU - Gillespie, W. Allan

AU - MacLeod, Allan M.

AU - Jaroszynski, D. A.

PY - 2009/5/20

Y1 - 2009/5/20

N2 - The Advanced Laser-Plasma High-Energy Accelerators towards X-rays (ALPHA-X) programme is developing laserplasma accelerators for the production of ultra-short electron bunches with subsequent generation of incoherent radiation pulses from plasma and coherent short-wavelength radiation pulses from a free-electron laser (FEL). The first quantitative measurements of the electron energy spectra have been made on the University of Strathclyde ALPHA-X wakefield acceleration beam line. A high peak power laser pulse (energy 900 mJ, duration 35 fs) is focused into a gas jet (nozzle length 2 mm) using an F/16 spherical mirror. Electrons from the laser-induced plasma are self-injected into the accelerating potential of the plasma density wake behind the laser pulse. Electron beams emitted from the plasma have been imaged downstream using a series of Lanex screens positioned along the beam line axis and the divergence of the electron beam has been measured to be typically in the range 1-3 mrad. Measurements of the electron energy spectrum, obtained using the ALPHA-X high resolution magnetic dipole spectrometer, are presented. The maximum central energy of the monoenergetic beam is 90 MeV and r.m.s. relative energy spreads as low as 0.8% are measured. The mean central energy is 82 MeV and mean relative energy spread is 1.1%. A theoretical analysis of this unexpectedly high electron beam quality is presented and the potential impact on the viability of FELs driven by electron beams from laser wakefield accelerators is examined.

AB - The Advanced Laser-Plasma High-Energy Accelerators towards X-rays (ALPHA-X) programme is developing laserplasma accelerators for the production of ultra-short electron bunches with subsequent generation of incoherent radiation pulses from plasma and coherent short-wavelength radiation pulses from a free-electron laser (FEL). The first quantitative measurements of the electron energy spectra have been made on the University of Strathclyde ALPHA-X wakefield acceleration beam line. A high peak power laser pulse (energy 900 mJ, duration 35 fs) is focused into a gas jet (nozzle length 2 mm) using an F/16 spherical mirror. Electrons from the laser-induced plasma are self-injected into the accelerating potential of the plasma density wake behind the laser pulse. Electron beams emitted from the plasma have been imaged downstream using a series of Lanex screens positioned along the beam line axis and the divergence of the electron beam has been measured to be typically in the range 1-3 mrad. Measurements of the electron energy spectrum, obtained using the ALPHA-X high resolution magnetic dipole spectrometer, are presented. The maximum central energy of the monoenergetic beam is 90 MeV and r.m.s. relative energy spreads as low as 0.8% are measured. The mean central energy is 82 MeV and mean relative energy spread is 1.1%. A theoretical analysis of this unexpectedly high electron beam quality is presented and the potential impact on the viability of FELs driven by electron beams from laser wakefield accelerators is examined.

U2 - 10.1117/12.820733

DO - 10.1117/12.820733

M3 - Conference contribution

SN - 9780819476333

VL - 7359

T3 - SPIE Proceedings

BT - SPIE Proceedings

A2 - Jaroszynski, Dino A.

A2 - Rousse, Antoine

CY - Bellingham, WA

ER -

Wiggins SM, Anania MP, Brunetti E, Cipiccia S, Ersfeld B, Islam MR et al. Narrow spread electron beams from a laser-plasma wakefield accelerator. In Jaroszynski DA, Rousse A, editors, SPIE Proceedings: Harnessing Relativistic Plasma Waves as Novel Radiation Sources from Terahertz to X-Rays and Beyond. Vol. 7359. Bellingham, WA. 2009. (SPIE Proceedings). https://doi.org/10.1117/12.820733