3 papers
physics.plasm-ph2024
Improved Bethe-Heitler positron creation and retention by combining direct laser acceleration and solid target interaction within a gas jet
Lucas I. Iñigo Gamiz, Robert Babjak, Bertrand Martinez +1
The next generation of Petawatt-class lasers presents the opportunity to study positron production and acceleration experimentally, in an all-optical setting. Several configuration…
physics.comp-ph2024
Neural network sampling of Bethe-Heitler process in particle-in-cell codes
Óscar Amaro, Chiara Badiali, Bertrand Martinez
This study uses neural networks to improve Monte Carlo (MC) implementations of the Bethe-Heitler process in Particle-In-Cell (PIC) codes. We provide a neural network that is as acc…
physics.plasm-ph2023
Radiation-dominated injection of positrons generated by the nonlinear Breit-Wheeler process into a plasma channel
Dominika Maslarova, Bertrand Martinez, Marija Vranic
Plasma acceleration is considered a prospective technology for building a compact multi-TeV electron-positron collider in the future. The challenge of this endeavor is greater for…