Gamma-ray flash generation in irradiating a thin foil target by a single-cycle tightly focused extreme power laser pulse

Hadjisolomou, Prokopis; Jeong, Tae Moon; Valenta, Petr; Korn, G.; Bulanov, Sergei V.

doi:10.1103/physreve.104.015203

Cited by 11 publications

(7 citation statements)

References 31 publications

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“…1. The titanium target for the PIC simulation is chosen since its electron number density is optimum for high conversion efficiency of the laser energy to γ-photon energy [13]. Natural lead (Z = 82, A = 207.…”

Section: Simulation Setupmentioning

confidence: 99%

“…This subsection provides a short description of the PIC simulation presented in Ref. [13]. The simulation is performed by the 3D EPOCH [43] PIC code.…”

Section: A Particle In Cell Simulationmentioning

confidence: 99%

“…∼ 4.6 deg. Owing to the strong collimation of primary high energy γ-photons [13], the emission of high-energy electrons and positrons with low mean opening angles is predominantly directed along the laser propagation axis. The pulse of electrons and positrons emitted from the target with the presented properties can be characterized as high-flux relativistic pair jets [30] and used for the electron-positron pair plasmas studies, where apart from other criteria the high and equal densities of electrons and positrons in the volume of their co-existence are required to achieve quasi-neutrality and collective behavior [28,29,31].…”

Section: Temporal Profile Of Collimated Pulse Of Ultra-relativistic P...mentioning

confidence: 99%

“…The laser-matter interactions at such ultrahigh intensities result not only in acceleration of electrons [7] and ions [8] but also in the generation of high-energy γ-photons and electron-positron pairs [9]. As theoretically foreseen [10,11] and recently calculated by threedimensional (3D) Particle-In-Cell (PIC) simulations [12][13][14], the laser-matter interactions at ultrahigh intensities result in high conversion efficiency of the laser energy to γ-photon energy, up to 50% in a time comparable to the laser pulse duration. The generation of such γ-photon flash is one of the main goals of multi-PW laser facilities [15].…”

Section: Introductionmentioning

confidence: 99%

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Electron-positron pairs and radioactive nuclei production by irradiation of high-Z target with γ-photon flash generated by an ultra-intense laser in the $λ^3$ regime

Kolenatý¹,

Hadjisolomou²,

Versaci³

et al. 2022

Preprint

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This paper studies the interaction of laser-driven γ-photons and high energy charged particles with high-Z targets through Monte-Carlo simulations. The interacting particles are taken from particle-in-cell simulations of the interaction of a tightly-focused ultraintense laser pulse with a titanium target. Lead is chosen as the secondary high-Z target owing to its high cross section of the giant dipole resonance and electron-positron pair production. The results reveal an ultra-short ultra-relativistic collimated positron population and their energy spectra, angular distribution, and temporal profile are found. We investigate the target thickness dependence of the resulting total numbers and total kinetic energies of various particle species emitted from the lead target irradiated with laser-generated γ-photons and charged particles separately. We plot the charts of residual high-Z nuclides generated by irradiation of the lead target. Owing to the short pulse duration, the γ-photon, electron-positron, and neutron sources can find applications in material science, nuclear physics, laboratory astrophysics, and as injectors in laser-based accelerators of charged particles.

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Section: Simulation Setupmentioning

confidence: 99%

“…This subsection provides a short description of the PIC simulation presented in Ref. [13]. The simulation is performed by the 3D EPOCH [43] PIC code.…”

Section: A Particle In Cell Simulationmentioning

confidence: 99%

Section: Temporal Profile Of Collimated Pulse Of Ultra-relativistic P...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Electron-positron pairs and radioactive nuclei production by irradiation of high-Z target with γ-photon flash generated by an ultra-intense laser in the $λ^3$ regime

Kolenatý¹,

Hadjisolomou²,

Versaci³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…For example, in a typical two component hydrogen plasma, ions start behaving relativistically when ; where and respectively be the ion and electron mass 31 . In the other hand, propagation of intense short laser pulses in a plasma (or, interaction of intense laser pulse with a thin target having high atomic number) can also lead to pair production which eventually results in formation a multi component plasma, where ions can be treated realtivistically 40 , 42 , 43 , 45 .…”

Section: Introductionmentioning

confidence: 99%

Wave breaking field of relativistically intense electrostatic waves in electronegative plasma with super-thermal electrons

Mukherjee

2022

Sci Rep

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The wave breaking limit of relativistically intense electrostatic waves in an unmagnetised electronegative plasma, where electrons are alleged to attach onto neutral atoms or molecules and thus forming a significant amount of negative ions, has been studied analytically. A nonlinear theory has been developed, using one-dimensional (1D) relativistic multi-fluid model in order to study the roles of super-thermal electrons, negative ion species and the Lorentz factor, on the dynamics of the wave. A generalised kappa-type distribution function has been chosen for the velocities of the electrons, to couple the densities of the fluids. By assuming the travelling wave solution, the equation of motion for the evolution of the wave in a stationary wave frame has been derived and numerical solutions have been presented. Studies have been further extended, using standard Sagdeev pseudopotential method, to discover the maximum electric field amplitude sustained by these waves. The dependence of wave breaking limit on the different input parameters such as the Lorentz factor, electron temperature, spectral index of the electron velocity distribution and on the fraction and the mass ratio of the negative to positive ion species has been shown explicitly. The wavelength of these waves has been calculated for a wide range of input parameters and its dependence on aforementioned plasma parameters have been studied in detail. These results are relevant to understand particle acceleration and relativistic wave breaking phenomena in high intensity laser plasma experiments and space environments where the secondary ion species and super-thermal electrons exist.

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On the synergic approach toward the experimental realization of interesting fundamental science within the framework of relativistic flying mirror concept

Jeong,

Bulanov,

Valenta

et al. 2024

Rev. Mod. Plasma Phys.

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The relativistic flying parabolic mirror can provide a higher laser intensity than the intensity a current laser system can reach via the optical-focusing scheme. A weakly relativistic laser intensity (1.8 $$\times$$ × 10$$^{17}$$ 17 W/cm$$^2$$ 2 , $$\eta = 0.29$$ η = 0.29 ) can be intensified up to a super-strong intensity of $$>\textrm{1}\times$$ > 1 × 10$$^{27}$$ 27 W/cm$$^2$$ 2 ($$\eta \approx 2.2 \times 10^4$$ η ≈ 2.2 × 10 4 ) by the relativistic flying mirror. Such a super-strong field can be applied to study the strong-field quantum electrodynamics in perturbative and non-perturbative regimes. In this review, the analytic derivations on the field strength and distribution obtained by the ideal relativistic flying parabolic mirror have been shown under the 4$$\pi$$ π -spherical-focusing approach. The quantum non-linearity parameter is calculated when such a super-strong field collides with the high-energy $$\gamma$$ γ -photons. The peak quantum non-linearity parameter reaches above 1600 when the 1-GeV $$\gamma$$ γ -photon collides with a super-strong laser field reflected and focused by the relativistic flying mirror driven by a 10 PW laser pulse.

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Gamma-ray flash generation in irradiating a thin foil target by a single-cycle tightly focused extreme power laser pulse

Cited by 11 publications

References 31 publications

Electron-positron pairs and radioactive nuclei production by irradiation of high-Z target with γ-photon flash generated by an ultra-intense laser in the $λ^3$ regime

Electron-positron pairs and radioactive nuclei production by irradiation of high-Z target with γ-photon flash generated by an ultra-intense laser in the $λ^3$ regime

Wave breaking field of relativistically intense electrostatic waves in electronegative plasma with super-thermal electrons

On the synergic approach toward the experimental realization of interesting fundamental science within the framework of relativistic flying mirror concept

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