High Efficiency Gamma-Ray Flash Generation via Multiple Compton Scattering
Abstract
Gamma-ray flash generation in near critical density (NCD) target irradiated by four symmetrical colliding laser pulses is numerically investigated. With peak intensities about W/cm, the laser pulses boost electron energy through direct laser acceleration, while pushing them inward with the ponderomotive force. After backscattering with counter-propagating laser, the accelerated electron is trapped in the optical lattice or the electromagnetic standing waves (SW) created by the coherent overlapping of the laser pulses, and emits gamma-ray photons in Multiple Compton Scattering regime, where electrons act as a medium transferring energy from the laser to gamma-rays. The energy conversion rate from laser pulses to gamma-ray can be as high as 50\%
Cite
@article{arxiv.1609.09567,
title = {High Efficiency Gamma-Ray Flash Generation via Multiple Compton Scattering},
author = {Z. Gong and R. H. Hu and Y. R. Shou and B. Qiao and C. E. Chen and X. T. He and S. S. Bulanov and T. Zh. Esirkepov and S. V. Bulanov and X. Q. Yan},
journal= {arXiv preprint arXiv:1609.09567},
year = {2017}
}