Abstract

The process of incoherent hard x-ray generation from laser-produced plasmas is investigated concerning the influence of the chirp of the irradiating laser pulse as well as the repetition rate of the laser system. By focussing ultrashort laser pulses onto a metal surface hard x-ray photons with photon energies of several keV are produced. The ultrashort laser pulses generate a plasma on the surface of the solid state target, whereupon the electrons of the plasma are accelerated back into the target producing incoherent hard x-ray radiation.

© 2007 IEEE