Speaker
Description
Studies of plasma-based acceleration techniques rely heavily on numerical simulations. The development of computationally simple models is an important part of researches. Quasistatic approximation is the fastest one but it does not take into account the self-trapping of plasma electrons in bubble regimes. The fraction of such particles is small compared to all plasma electrons. We calculate fast plasma electrons with full equations of motion when their Lorentz gamma factor exceeds trapping threshold. We implement this algorithm in code LCODE and optimize the interaction of 300 mJ laser pulse with plasma to obtain accelerated electron beam after gas jet target. Simulations of FBPic code that does not include the quasistatic approximation shows similar results.
