High energy conversion efficiency in laser-proton acceleration by controlling laser-energy deposition onto thin foil targets

Ceri Mae Brenner, A. P. L. Robinson, K. Markey, R. H. H. Scott, Ross Gray, M. Rosinski, K. Deppert, J Badziak, D. Batani, J.R. Davies, K.L. Lancaster, I. O. Musgrave, P.A. Norreys, J. Pasley, M. Roth, H-P Schlenvoight, C. Spindloe, M. Tatarakis, T. B. Winstone, Paul McKenna & 1 others David Neely

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

An all-optical approach to laser-proton acceleration enhancement is investigated using the simplest of target designs to demonstrate application-relevant levels of energy conversion efficiency between laser and protons. Controlled deposition of laser energy, in the form of a double-pulse temporal envelope, is investigated in combination with thin foil targets in which recirculation of laser-accelerated electrons can lead to optimal conditions for coupling laser drive energy into the proton beam. This approach is shown to deliver a substantial enhancement in the coupling of laser energy to 5–30 MeV protons, compared to single pulse irradiation, reaching a record high 15% conversion efficiency with a temporal separation of 1 ps between the two pulses and a 5 μm-thick Au foil. A 1D simulation code is used to support and explain the origin of the observation of an optimum pulse separation of ∼1 ps.
LanguageEnglish
Article number081123
Number of pages5
JournalApplied Physics Letters
Volume104
Issue number8
Early online date28 Feb 2014
DOIs
Publication statusPublished - 2014

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energy conversion efficiency
foils
protons
lasers
pulses
energy
augmentation
proton beams
envelopes
irradiation
electrons
simulation

Keywords

  • laser-proton acceleration
  • energy conversion efficiency
  • lasers
  • protons
  • aser-accelerated electrons

Cite this

Brenner, Ceri Mae ; Robinson, A. P. L. ; Markey, K. ; Scott, R. H. H. ; Gray, Ross ; Rosinski, M. ; Deppert, K. ; Badziak, J ; Batani, D. ; Davies, J.R. ; Lancaster, K.L. ; Musgrave, I. O. ; Norreys, P.A. ; Pasley, J. ; Roth, M. ; Schlenvoight, H-P ; Spindloe, C. ; Tatarakis, M. ; Winstone, T. B. ; McKenna, Paul ; Neely, David. / High energy conversion efficiency in laser-proton acceleration by controlling laser-energy deposition onto thin foil targets. In: Applied Physics Letters. 2014 ; Vol. 104, No. 8.
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abstract = "An all-optical approach to laser-proton acceleration enhancement is investigated using the simplest of target designs to demonstrate application-relevant levels of energy conversion efficiency between laser and protons. Controlled deposition of laser energy, in the form of a double-pulse temporal envelope, is investigated in combination with thin foil targets in which recirculation of laser-accelerated electrons can lead to optimal conditions for coupling laser drive energy into the proton beam. This approach is shown to deliver a substantial enhancement in the coupling of laser energy to 5–30 MeV protons, compared to single pulse irradiation, reaching a record high 15{\%} conversion efficiency with a temporal separation of 1 ps between the two pulses and a 5 μm-thick Au foil. A 1D simulation code is used to support and explain the origin of the observation of an optimum pulse separation of ∼1 ps.",
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author = "Brenner, {Ceri Mae} and Robinson, {A. P. L.} and K. Markey and Scott, {R. H. H.} and Ross Gray and M. Rosinski and K. Deppert and J Badziak and D. Batani and J.R. Davies and K.L. Lancaster and Musgrave, {I. O.} and P.A. Norreys and J. Pasley and M. Roth and H-P Schlenvoight and C. Spindloe and M. Tatarakis and Winstone, {T. B.} and Paul McKenna and David Neely",
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Brenner, CM, Robinson, APL, Markey, K, Scott, RHH, Gray, R, Rosinski, M, Deppert, K, Badziak, J, Batani, D, Davies, JR, Lancaster, KL, Musgrave, IO, Norreys, PA, Pasley, J, Roth, M, Schlenvoight, H-P, Spindloe, C, Tatarakis, M, Winstone, TB, McKenna, P & Neely, D 2014, 'High energy conversion efficiency in laser-proton acceleration by controlling laser-energy deposition onto thin foil targets' Applied Physics Letters, vol. 104, no. 8, 081123. https://doi.org/10.1063/1.4865812

High energy conversion efficiency in laser-proton acceleration by controlling laser-energy deposition onto thin foil targets. / Brenner, Ceri Mae; Robinson, A. P. L.; Markey, K.; Scott, R. H. H.; Gray, Ross; Rosinski, M.; Deppert, K.; Badziak, J; Batani, D.; Davies, J.R.; Lancaster, K.L.; Musgrave, I. O.; Norreys, P.A.; Pasley, J.; Roth, M.; Schlenvoight, H-P; Spindloe, C.; Tatarakis, M.; Winstone, T. B.; McKenna, Paul; Neely, David.

In: Applied Physics Letters, Vol. 104, No. 8, 081123, 2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - High energy conversion efficiency in laser-proton acceleration by controlling laser-energy deposition onto thin foil targets

AU - Brenner, Ceri Mae

AU - Robinson, A. P. L.

AU - Markey, K.

AU - Scott, R. H. H.

AU - Gray, Ross

AU - Rosinski, M.

AU - Deppert, K.

AU - Badziak, J

AU - Batani, D.

AU - Davies, J.R.

AU - Lancaster, K.L.

AU - Musgrave, I. O.

AU - Norreys, P.A.

AU - Pasley, J.

AU - Roth, M.

AU - Schlenvoight, H-P

AU - Spindloe, C.

AU - Tatarakis, M.

AU - Winstone, T. B.

AU - McKenna, Paul

AU - Neely, David

PY - 2014

Y1 - 2014

N2 - An all-optical approach to laser-proton acceleration enhancement is investigated using the simplest of target designs to demonstrate application-relevant levels of energy conversion efficiency between laser and protons. Controlled deposition of laser energy, in the form of a double-pulse temporal envelope, is investigated in combination with thin foil targets in which recirculation of laser-accelerated electrons can lead to optimal conditions for coupling laser drive energy into the proton beam. This approach is shown to deliver a substantial enhancement in the coupling of laser energy to 5–30 MeV protons, compared to single pulse irradiation, reaching a record high 15% conversion efficiency with a temporal separation of 1 ps between the two pulses and a 5 μm-thick Au foil. A 1D simulation code is used to support and explain the origin of the observation of an optimum pulse separation of ∼1 ps.

AB - An all-optical approach to laser-proton acceleration enhancement is investigated using the simplest of target designs to demonstrate application-relevant levels of energy conversion efficiency between laser and protons. Controlled deposition of laser energy, in the form of a double-pulse temporal envelope, is investigated in combination with thin foil targets in which recirculation of laser-accelerated electrons can lead to optimal conditions for coupling laser drive energy into the proton beam. This approach is shown to deliver a substantial enhancement in the coupling of laser energy to 5–30 MeV protons, compared to single pulse irradiation, reaching a record high 15% conversion efficiency with a temporal separation of 1 ps between the two pulses and a 5 μm-thick Au foil. A 1D simulation code is used to support and explain the origin of the observation of an optimum pulse separation of ∼1 ps.

KW - laser-proton acceleration

KW - energy conversion efficiency

KW - lasers

KW - protons

KW - aser-accelerated electrons

UR - http://scitation.aip.org/content/aip/journal/apl

U2 - 10.1063/1.4865812

DO - 10.1063/1.4865812

M3 - Article

VL - 104

JO - Applied Physics Letters

T2 - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 8

M1 - 081123

ER -