Proton Acceleration Driven by a Nanosecond Laser from a Cryogenic Thin Solid-Hydrogen Ribbon

Margarone, D.; Velyhan, A.; Dostál, J.; Ullschmied, J.; Perin, J. P.; Chatain, D.; Garcia, Stephanie; Bonnay, Patrick; Pisarczyk, T.; Dudžák, R.; Rosiński, M.; Krása, J.; Giuffrida, L.; Prokůpek, J.; Scuderi, V.; Pšikal, J.; Kuchařík, Milan; Marco, Massimo De; Cikhardt, J.; Krouský, E.; Kalinowska, Z.; Chodukowski, T.; Cirrone, G.A.P.; Korn, G.

doi:10.1103/physrevx.6.041030

Cited by 49 publications

(53 citation statements)

References 38 publications

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“…Despite the long scale lengths predicted, protons are still accelerated to multi-MeV energies in all cases, potentially due to the impact of superponderomotive electron heating or laser self-focusing in front-side preformed plasma. Maximum energies measured here in the 100 ps pulse duration case exceed previous observations from kilojoule-class laser-solid interactions with 100s of ps pulse durations and lower intensities [52,53].…”

Section: Discussioncontrasting

confidence: 54%

Proton beam emittance growth in multipicosecond laser-solid interactions

et al. 2019

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High intensity laser-solid interactions can accelerate high energy, low emittance proton beams via the target normal sheath acceleration (TNSA) mechanism. Such beams are useful for a number of applications, including time-resolved proton radiography for basic plasma and high energy density physics studies. In experiments using the OMEGA EP laser system, we perform the first measurements of TNSA proton beams generated by up to 100 ps, kilojoule-class laser pulses with relativistic intensities. By systematically varying the laser pulse duration, we measure degradation of the accelerated proton beam quality as the pulse length increases. Two dimensional particle-in-cell simulations and simple scaling arguments suggest that ion motion during the rise time of the longer pulses leads to extended preformed plasma expansion from the rear target surface and strong filamentary field structures which can deflect ions away from uniform trajectories and therefore lead to large emittance growth.

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Section: Discussioncontrasting

confidence: 54%

Proton beam emittance growth in multipicosecond laser-solid interactions

et al. 2019

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“…for plastic n e ≈ 200 − 300n c , while for gold n e > 10 3 n c ). According to eq.1 cryogenic solid hydrogen targets [31](n e ≈ 30n c ) could allow to reach the near-critical regime for PetaWatt-class laser systems [30] able to attain a 0 30. NCPs with n e < n c can be obtained with gas-jets [32], however this density regime is particularly challenging, since high-density cryogenic gas-jets are required.…”

Section: Introductionmentioning

confidence: 99%

Parametric investigation of laser interaction with uniform and nanostructured near-critical plasmas

Fedeli¹,

Formenti²,

Bottani³

et al. 2017

Eur. Phys. J. D

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Laser interaction with uniform and nanostructured near-critical plasmas has been investigated by means of 2D particle-in-cell simulations. The effect of a nanostructure (modeled as a collection of solid-density nanospheres) on energy absorption and radiative losses has been assessed in a wide range of laser intensities (normalized amplitude a 0 = 1 − 135) and average densities of the target (electron density n e = 1 − 9n c , where n c is the critical electron density). The nanostructure was found to affect mainly the conversion efficiency of laser energy into ion kinetic energy and radiative losses for the highest simulated intensities.PACS. 52.38.-r Laser-plasma interactions -52.38.Hb Self-focussing, channeling, and filamentation in plasmas -52.65.Rr Particle-in-cell method arXiv:1711.06471v2 [physics.plasm-ph]

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“…Such method was used to analyze the TOF signals acquired in different laser-acceleration experiments using laser systems from few TW up to PW power accelerating protons with energies ranging from few MeV up to 30 MeV 16,25,26 . The procedure was validated against other well-established diagnostics and optimized adapting it according to the different experimental conditions and purposes.…”

Section: A New Procedures For Proton Energy Spectrum Reconstructionmentioning

confidence: 99%

A new energy spectrum reconstruction method for time-of-flight diagnostics of high-energy laser-driven protons

Milluzzo

Scuderi

Alejo

et al. 2019

Review of Scientific Instruments

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The Time-of-Flight (ToF) technique coupled with semiconductor-like detectors, as silicon carbide and diamond, is one of the most promising diagnostic methods for high-energy, high repetition rate, laser-accelerated ions allowing a full on-line beam spectral characterization. A new analysis method for reconstructing the energy spectrum of high-energy laser-driven ion beams from TOF signals is hereby presented and discussed. The proposed method takes into account the detector's working principle, through the accurate calculation of the energy loss in the detector active layer, using Monte Carlo simulations. The analysis method was validated against well-established diagnostics, such as the Thomson Parabola Spectrometer, during an experimental campaign carried out at the Rutherford Appleton Laboratory (RAL, UK) with the high-energy laser-driven protons accelerated by the VULCAN Petawatt laser.

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Proton Acceleration Driven by a Nanosecond Laser from a Cryogenic Thin Solid-Hydrogen Ribbon

Cited by 49 publications

References 38 publications

Proton beam emittance growth in multipicosecond laser-solid interactions

Proton beam emittance growth in multipicosecond laser-solid interactions

Parametric investigation of laser interaction with uniform and nanostructured near-critical plasmas

A new energy spectrum reconstruction method for time-of-flight diagnostics of high-energy laser-driven protons

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