Onset of electron-seeded cascades in generic electromagnetic fields

0549187 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
Mironov, A. A. - Gelfer, Evgeny - Fedotov, A.M.
Onset of electron-seeded cascades in generic electromagnetic fields.
Physical Review A. Roč. 104, Jul (2021), č. článku 012221. ISSN 2469-9926. E-ISSN 2469-9934
Grant CEP: GA MŠMT EF16_019/0000789
Grant ostatní: OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789
Výzkumná infrastruktura: ELI Beamlines III - 90141
Institucionální podpora: RVO:68378271
Klíčová slova: high-field physics * pair production * cascading
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 2.971, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1103/PhysRevA.104.012221

QED cascades in a strong electromagnetic field of optical range and arbitrary configuration are considered. A general expression for short-time dependence of the key electron quantum dynamical parameter is derived, allowing one to generalize the effective threshold condition of QED cascade onset. The generalized theory is applied to self-sustained cascades in a single focused laser pulse. According to numerical simulations, if a GeV electron bunch is used as a seed, an ordinary cascade can be converted into a self-sustained one. As an application, it would be also possible to produce this way bright collimated photon beams with up to GeV photon energies.
Trvalý link: http://hdl.handle.net/11104/0325208