0560450 - FZÚ 2023 RIV US eng J - Journal Article
Kolenatý, David - Hadjisolomou, Prokopis - Versaci, Roberto - Jeong, Tae Moon - Valenta, Petr - Olšovcová, Veronika - Bulanov, Sergey V.
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 λ³ regime.
Physical Review Research. Roč. 4, č. 2 (2022), č. článku 023124. E-ISSN 2643-1564
R&D Projects: GA MŠMT EF15_003/0000449
Grant - others:OP VVV - HiFi(XE) CZ.02.1.01/0.0/0.0/15_003/0000449
Institutional support: RVO:68378271
Keywords : relativistic laser plasma * gamma-ray flash * photo-nuclear reactions
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 4.2, year: 2022
Method of publishing: Open access

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 ultra-intense laser pulse with a titanium target. Lead is chosen as the secondary high-Z target because of 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.
Permanent Link: https://hdl.handle.net/11104/0333394