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; David Neely

doi:10.1063/1.4865812

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 McKennaDavid Neely

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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.

Original language	English
Article number	081123
Number of pages	5
Journal	Applied Physics Letters
Volume	104
Issue number	8
Early online date	28 Feb 2014
DOIs	https://doi.org/10.1063/1.4865812
Publication status	Published - 2014

Keywords

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

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10.1063/1.4865812

Brenner-etal-APL2014-laser-proton-accelerationAccepted author manuscript, 762 KB

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Brenner, C. M., Robinson, A. P. L., Markey, K., Scott, R. H. H., Gray, R., 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., ... Neely, D. (2014). High energy conversion efficiency in laser-proton acceleration by controlling laser-energy deposition onto thin foil targets. Applied Physics Letters, 104(8), Article 081123. https://doi.org/10.1063/1.4865812

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

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.",

keywords = "laser-proton acceleration, energy conversion efficiency, lasers, protons, aser-accelerated electrons ",

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",

year = "2014",

doi = "10.1063/1.4865812",

language = "English",

volume = "104",

journal = "Applied Physics Letters",

issn = "0003-6951",

number = "8",

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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

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

SN - 0003-6951

VL - 104

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

M1 - 081123

ER -

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

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Multi-PetaWatt Laser-Plasma Interactions: A New Frontier in Physics

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

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Multi-PetaWatt Laser-Plasma Interactions: A New Frontier in Physics

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