On the investigation of fast electron beam filamentation in laser-irradiated solid targets using multi-MeV proton emission

M. N. Quinn, D. C. Carroll, X. H. Yuan, M. Borghesi, R. J. Clarke, R. G. Evans, J. Fuchs, P. Gallegos, L. Lancia, K. Quinn, A. P. L. Robinson, L. Romagnani, G. Sarri, C. Spindloe, P. A. Wilson, D. Neely, P. McKenna

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The transverse filamentation of beams of fast electrons transported in solid targets irradiated by ultraintense (5 x 10(20) W cm(-2)), picosecond laser pulses is investigated experimentally. Filamentation is diagnosed by measuring the uniformity of a beam of multi-MeV protons accelerated by the sheath field formed by the arrival of the fast electrons at the rear of the target, and is investigated for metallic and insulator targets ranging in thickness from 50 to 1200 mu m. By developing an analytical model, the effects of lateral expansion of electron beam filaments in the sheath during the proton acceleration process is shown to account for measured increases in proton beam nonuniformity with target thickness for the insulating targets.

LanguageEnglish
Article number124012
Pages-
Number of pages8
JournalPlasma Physics and Controlled Fusion
Volume53
Issue number12
DOIs
Publication statusPublished - Dec 2011

Fingerprint

Solid state lasers
Electron beams
Protons
electron beams
Proton beams
protons
Electrons
sheaths
lasers
Analytical models
Laser pulses
target thickness
proton beams
nonuniformity
arrivals
filaments
electrons
insulators
expansion
pulses

Keywords

  • plasma physics
  • electron beam filamentation
  • multi-MeV proton emission

Cite this

Quinn, M. N. ; Carroll, D. C. ; Yuan, X. H. ; Borghesi, M. ; Clarke, R. J. ; Evans, R. G. ; Fuchs, J. ; Gallegos, P. ; Lancia, L. ; Quinn, K. ; Robinson, A. P. L. ; Romagnani, L. ; Sarri, G. ; Spindloe, C. ; Wilson, P. A. ; Neely, D. ; McKenna, P. / On the investigation of fast electron beam filamentation in laser-irradiated solid targets using multi-MeV proton emission. In: Plasma Physics and Controlled Fusion. 2011 ; Vol. 53, No. 12. pp. -.
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abstract = "The transverse filamentation of beams of fast electrons transported in solid targets irradiated by ultraintense (5 x 10(20) W cm(-2)), picosecond laser pulses is investigated experimentally. Filamentation is diagnosed by measuring the uniformity of a beam of multi-MeV protons accelerated by the sheath field formed by the arrival of the fast electrons at the rear of the target, and is investigated for metallic and insulator targets ranging in thickness from 50 to 1200 mu m. By developing an analytical model, the effects of lateral expansion of electron beam filaments in the sheath during the proton acceleration process is shown to account for measured increases in proton beam nonuniformity with target thickness for the insulating targets.",
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author = "Quinn, {M. N.} and Carroll, {D. C.} and Yuan, {X. H.} and M. Borghesi and Clarke, {R. J.} and Evans, {R. G.} and J. Fuchs and P. Gallegos and L. Lancia and K. Quinn and Robinson, {A. P. L.} and L. Romagnani and G. Sarri and C. Spindloe and Wilson, {P. A.} and D. Neely and P. McKenna",
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Quinn, MN, Carroll, DC, Yuan, XH, Borghesi, M, Clarke, RJ, Evans, RG, Fuchs, J, Gallegos, P, Lancia, L, Quinn, K, Robinson, APL, Romagnani, L, Sarri, G, Spindloe, C, Wilson, PA, Neely, D & McKenna, P 2011, 'On the investigation of fast electron beam filamentation in laser-irradiated solid targets using multi-MeV proton emission' Plasma Physics and Controlled Fusion, vol. 53, no. 12, 124012, pp. -. https://doi.org/10.1088/0741-3335/53/12/124012

On the investigation of fast electron beam filamentation in laser-irradiated solid targets using multi-MeV proton emission. / Quinn, M. N.; Carroll, D. C.; Yuan, X. H.; Borghesi, M.; Clarke, R. J.; Evans, R. G.; Fuchs, J.; Gallegos, P.; Lancia, L.; Quinn, K.; Robinson, A. P. L.; Romagnani, L.; Sarri, G.; Spindloe, C.; Wilson, P. A.; Neely, D.; McKenna, P.

In: Plasma Physics and Controlled Fusion, Vol. 53, No. 12, 124012, 12.2011, p. -.

Research output: Contribution to journalArticle

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T1 - On the investigation of fast electron beam filamentation in laser-irradiated solid targets using multi-MeV proton emission

AU - Quinn, M. N.

AU - Carroll, D. C.

AU - Yuan, X. H.

AU - Borghesi, M.

AU - Clarke, R. J.

AU - Evans, R. G.

AU - Fuchs, J.

AU - Gallegos, P.

AU - Lancia, L.

AU - Quinn, K.

AU - Robinson, A. P. L.

AU - Romagnani, L.

AU - Sarri, G.

AU - Spindloe, C.

AU - Wilson, P. A.

AU - Neely, D.

AU - McKenna, P.

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AB - The transverse filamentation of beams of fast electrons transported in solid targets irradiated by ultraintense (5 x 10(20) W cm(-2)), picosecond laser pulses is investigated experimentally. Filamentation is diagnosed by measuring the uniformity of a beam of multi-MeV protons accelerated by the sheath field formed by the arrival of the fast electrons at the rear of the target, and is investigated for metallic and insulator targets ranging in thickness from 50 to 1200 mu m. By developing an analytical model, the effects of lateral expansion of electron beam filaments in the sheath during the proton acceleration process is shown to account for measured increases in proton beam nonuniformity with target thickness for the insulating targets.

KW - plasma physics

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KW - multi-MeV proton emission

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