Optimization of relativistic laser–ion acceleration

Schreiber, Jörg; Bell, F.; Najmudin, Z.

doi:10.1017/hpl.2014.46

Cited by 13 publications

(5 citation statements)

References 112 publications

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“…Due to the strong dependence of E max on both the intensity and focal spot size, it would be more appropriate to compare the data plotted in Figure 2 as a function of laser energy. 37 Except for three points, the short pulse data agree well with the simulations. Moreover, they follow a power dependence of the form E max $ e 3=5 , identical to that predicted by the PIC simulations.…”

Section: Maximum Proton Energy Versus Laser Energysupporting

confidence: 70%

Proton acceleration from high-contrast short pulse lasers interacting with sub-micron thin foils

Petrov

McGuffey

Thomas

et al. 2016

Journal of Applied Physics

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A theoretical study complemented with published experimental data of proton acceleration from sub-micron (thickness < 1 lm) foils irradiated by ultra-high contrast (>10 10) short pulse lasers is presented. The underlying physics issues pertinent to proton acceleration are addressed using twodimensional particle-in-cell simulations. For laser energy e 4 J (intensity I 5 Â 10 20 W=cm 2), simulation predictions agree with experimental data, both exhibiting scaling superior to Target Normal Sheath Acceleration's model. Anomalous behavior was observed for e > 4 J (I > 5 Â 10 20 W=cm 2), for which the measured maximum proton energies were much lower than predicted by scaling and these simulations. This unexpected behavior could not be explained within the frame of the model, and we conjecture that pre-pulses preceding the main pulse by picoseconds may be responsible. If technological issues can be resolved, energetic proton beams could be generated for a wide range of applications such as nuclear physics, radiography, and medical science.

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Section: Maximum Proton Energy Versus Laser Energysupporting

confidence: 70%

Proton acceleration from high-contrast short pulse lasers interacting with sub-micron thin foils

Petrov

McGuffey

Thomas

et al. 2016

Journal of Applied Physics

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“…Significant progress has been made in this topic (Daido et al 2012;Macchi et al 2013). However, to realize real applications, more efforts are still required to improve the ion beam quality, e.g., enhancing the maximum energy, reducing the beam energy spread, increasing the stability and controllability (Schreiber et al 2014;Wagner et al 2014).…”

Section: Laser-driven Ion Acceleration and Applicationsmentioning

confidence: 99%

Summary of laser plasma physics sessions at the first AAPPS-DPP conference

Sheng

2018

Rev. Mod. Plasma Phys.

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The presentations on laser plasma physics at the first AAPPS-DPP conference covered topics of inertial confined fusion physics and technologies, laboratory astrophysics and high-energy density physics, laser plasma-based particle acceleration (electrons and ions) and radiation, fundamental laser plasma physics, and related high-power laser system development. This report summarizes the major advances in these topics presented at the plenary and oral sessions.

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“…The interaction of relativistically intense laser pulses with solid targets has stimulated considerable interest because of its practical applications in laser-driven particle acceleration [1][2][3][4][5][6][7] , high-brightness ultrafast hard X-ray and K α source [8][9][10][11] , cancer treatment [12,13] , fast ignition in inertial confinement fusion [14] , etc. A crucial issue, in all these applications, is to produce high-quality forward hot electrons efficiently.…”

Section: Introductionmentioning

confidence: 99%

Generation mechanism of 100 MG magnetic fields in the interaction of ultra-intense laser pulse with nanostructured target

Tian

Cai

Zhang

et al. 2020

High Pow Laser Sci Eng

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Experimental and simulation data [Moreau et al., Plasma Phys. Control. Fusion 62, 014013 (2019); Kaymak et al., Phys. Rev. Lett. 117, 035004 (2016)] indicate that self-generated magnetic fields play an important role in enhancing the flux and energy of relativistic electrons accelerated by ultra-intense laser pulse irradiation with nanostructured arrays. A fully relativistic analytical model for the generation of the magnetic field based on electron magneto-hydrodynamic description is presented here. The analytical model shows that this self-generated magnetic field originates in the nonparallel density gradient and fast electron current at the interfaces of a nanolayered target. A general formula for the self-generated magnetic field is found, which closely agrees with the simulation scaling over the relevant intensity range. The result is beneficial to the experimental designs for the interaction of the laser pulse with the nanostructured arrays to improve laser-to-electron energy coupling and the quality of forward hot electrons.

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Optimization of relativistic laser–ion acceleration

Cited by 13 publications

References 112 publications

Proton acceleration from high-contrast short pulse lasers interacting with sub-micron thin foils

Proton acceleration from high-contrast short pulse lasers interacting with sub-micron thin foils

Summary of laser plasma physics sessions at the first AAPPS-DPP conference

Generation mechanism of 100 MG magnetic fields in the interaction of ultra-intense laser pulse with nanostructured target

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