Small-angle Thomson scattering of ultrafast laser pulses for bright, sub-100-fs x-ray radiation

We propose a scheme for bright sub-100-fs x-ray radiation generation using small-angle Thomson scattering. Coupling high-brightness electron bunches with high-power ultrafast laser pulses, radiation with photon energies between 8 and 40 keV can be generated with pulse duration comparable to that of the incoming laser pulse and with peak spectral brightness close to that of the third-generation synchrotron light sources of $\ensuremath{\sim}{10}^{20}\mathrm{photons}{\mathrm{s}}^{\ensuremath{-}1}{\mathrm{mm}}^{\ensuremath{-}2}{\mathrm{mrad}}^{\ensuremath{-}2}$ per ${10}^{\ensuremath{-}3}$ bandwidth. A preliminary dynamic calculation is performed to understand the property of this novel scattering scheme with relativistic laser intensities.

Abstract licence: CC BY

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