Effects of front surface plasma expansion on proton acceleration in ultraintense laser irradiation of foil targets

P. McKenna, D.C. Carroll, O. Lundh, F. Nurnberg, K. Markey, S. Bandyopadhyay, D. Batani, R.G. Evans, R. Jafer, S. Kar, D. Neely, D. Pepler, M.N. Quinn, R. Redaelli, M. Roth, C.G. Wahlström, X.H. Yuan, M. Zepf

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

The properties of beams of high energy protons accelerated during ultraintense, picosecond laser-irradiation of thin foil targets are investigated as a function of preplasma expansion at the target front surface. Significant enhancement in the maximum proton energy and laser-to-proton energy conversion efficiency is observed at optimum preplasma density gradients, due to self-focusing of the incident laser pulse. For very long preplasma expansion, the propagating laser pulse is observed to filament, resulting in highly uniform proton beams, but with reduced flux and maximum energy.
LanguageEnglish
Pages591-596
Number of pages5
JournalLaser and Particle Beams
Volume26
Issue number4
Early online date4 Nov 2008
DOIs
Publication statusPublished - 31 Dec 2008

Fingerprint

Laser beam effects
proton energy
Metal foil
foils
Protons
Plasmas
irradiation
expansion
protons
lasers
Proton beams
energy conversion efficiency
self focusing
proton beams
Energy conversion
Conversion efficiency
Laser pulses
filaments
Fluxes
Lasers

Keywords

  • laser-plasma interaction
  • laser-proton acceleration
  • plasma expansion

Cite this

McKenna, P. ; Carroll, D.C. ; Lundh, O. ; Nurnberg, F. ; Markey, K. ; Bandyopadhyay, S. ; Batani, D. ; Evans, R.G. ; Jafer, R. ; Kar, S. ; Neely, D. ; Pepler, D. ; Quinn, M.N. ; Redaelli, R. ; Roth, M. ; Wahlström, C.G. ; Yuan, X.H. ; Zepf, M. / Effects of front surface plasma expansion on proton acceleration in ultraintense laser irradiation of foil targets. In: Laser and Particle Beams. 2008 ; Vol. 26, No. 4. pp. 591-596.
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abstract = "The properties of beams of high energy protons accelerated during ultraintense, picosecond laser-irradiation of thin foil targets are investigated as a function of preplasma expansion at the target front surface. Significant enhancement in the maximum proton energy and laser-to-proton energy conversion efficiency is observed at optimum preplasma density gradients, due to self-focusing of the incident laser pulse. For very long preplasma expansion, the propagating laser pulse is observed to filament, resulting in highly uniform proton beams, but with reduced flux and maximum energy.",
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author = "P. McKenna and D.C. Carroll and O. Lundh and F. Nurnberg and K. Markey and S. Bandyopadhyay and D. Batani and R.G. Evans and R. Jafer and S. Kar and D. Neely and D. Pepler and M.N. Quinn and R. Redaelli and M. Roth and C.G. Wahlstr{\"o}m and X.H. Yuan and M. Zepf",
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McKenna, P, Carroll, DC, Lundh, O, Nurnberg, F, Markey, K, Bandyopadhyay, S, Batani, D, Evans, RG, Jafer, R, Kar, S, Neely, D, Pepler, D, Quinn, MN, Redaelli, R, Roth, M, Wahlström, CG, Yuan, XH & Zepf, M 2008, 'Effects of front surface plasma expansion on proton acceleration in ultraintense laser irradiation of foil targets' Laser and Particle Beams, vol. 26, no. 4, pp. 591-596. https://doi.org/10.1017/S0263034608000657

Effects of front surface plasma expansion on proton acceleration in ultraintense laser irradiation of foil targets. / McKenna, P.; Carroll, D.C.; Lundh, O.; Nurnberg, F.; Markey, K.; Bandyopadhyay, S.; Batani, D.; Evans, R.G.; Jafer, R.; Kar, S.; Neely, D.; Pepler, D.; Quinn, M.N.; Redaelli, R.; Roth, M.; Wahlström, C.G.; Yuan, X.H.; Zepf, M.

In: Laser and Particle Beams, Vol. 26, No. 4, 31.12.2008, p. 591-596.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effects of front surface plasma expansion on proton acceleration in ultraintense laser irradiation of foil targets

AU - McKenna, P.

AU - Carroll, D.C.

AU - Lundh, O.

AU - Nurnberg, F.

AU - Markey, K.

AU - Bandyopadhyay, S.

AU - Batani, D.

AU - Evans, R.G.

AU - Jafer, R.

AU - Kar, S.

AU - Neely, D.

AU - Pepler, D.

AU - Quinn, M.N.

AU - Redaelli, R.

AU - Roth, M.

AU - Wahlström, C.G.

AU - Yuan, X.H.

AU - Zepf, M.

PY - 2008/12/31

Y1 - 2008/12/31

N2 - The properties of beams of high energy protons accelerated during ultraintense, picosecond laser-irradiation of thin foil targets are investigated as a function of preplasma expansion at the target front surface. Significant enhancement in the maximum proton energy and laser-to-proton energy conversion efficiency is observed at optimum preplasma density gradients, due to self-focusing of the incident laser pulse. For very long preplasma expansion, the propagating laser pulse is observed to filament, resulting in highly uniform proton beams, but with reduced flux and maximum energy.

AB - The properties of beams of high energy protons accelerated during ultraintense, picosecond laser-irradiation of thin foil targets are investigated as a function of preplasma expansion at the target front surface. Significant enhancement in the maximum proton energy and laser-to-proton energy conversion efficiency is observed at optimum preplasma density gradients, due to self-focusing of the incident laser pulse. For very long preplasma expansion, the propagating laser pulse is observed to filament, resulting in highly uniform proton beams, but with reduced flux and maximum energy.

KW - laser-plasma interaction

KW - laser-proton acceleration

KW - plasma expansion

U2 - 10.1017/S0263034608000657

DO - 10.1017/S0263034608000657

M3 - Article

VL - 26

SP - 591

EP - 596

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T2 - Laser and Particle Beams

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SN - 0263-0346

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