A. Giulietti, N. Bourgeois, T. Ceccotti, X. Davoine, S. Dobosz, P. D'Oliveira, M. Galimberti, J. Galy, A. Gamucci, D. Giulietti, L.A. Gizzi, D.J. Hamilton, E. Lefebvre, L. Labate, J.R. Marquès, P. Monot, H. Popescu, F. Réau, G. Sarri, P. Tomassini, P. Martin

Intense gamma-Ray Source in the Giant-Dipole-Resonance Range Driven by 10-TW Laser Pulses

Phys. Rev. Lett. 101, 105002 (2008)

A gamma-ray source with an intense component around the giant dipole resonance for photonuclear absorption has been obtained via bremsstrahlung of electron bunches driven by a 10-TW tabletop laser. 3D particle-in-cell simulation proves the achievement of a nonlinear regime leading to efficient acceleration of several sequential electron bunches per each laser pulse. The rate of the gamma-ray yield in the giant dipole resonance region (8