Leveraging extreme laser-driven magnetic fields for gamma-ray generation and pair production - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Plasma Phys.Control.Fusion Année : 2018

Leveraging extreme laser-driven magnetic fields for gamma-ray generation and pair production

O. Jansen
  • Fonction : Auteur
T. Wang
  • Fonction : Auteur
D.J. Stark
  • Fonction : Auteur
T. Toncian
A.V. Arefiev
  • Fonction : Auteur

Résumé

The ability of an intense laser pulse to propagate in a classically over-critical plasma through the phenomenon of relativistic transparency is shown to facilitate the generation of strong plasma magnetic fields. Particle-in-cell simulations demonstrate that these fields significantly enhance the radiation rates of the laser-irradiated electrons, and furthermore they collimate the emission so that a directed and dense beam of multi-MeV gamma-rays is achievable. This capability can be exploited for electron–positron pair production via the linear Breit–Wheeler process by colliding two such dense beams. Presented simulations show that more than 103 pairs can be produced in such a setup, and the directionality of the positrons can be controlled by the angle of incidence between the beams.

Dates et versions

hal-01815289 , version 1 (14-06-2018)

Identifiants

Citer

O. Jansen, T. Wang, D.J. Stark, E. d'Humières, T. Toncian, et al.. Leveraging extreme laser-driven magnetic fields for gamma-ray generation and pair production. Plasma Phys.Control.Fusion, 2018, 60 (5), pp.054006. ⟨10.1088/1361-6587/aab222⟩. ⟨hal-01815289⟩

Collections

CEA CNRS DAM
35 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More