Morris_Poster 8 Revised_DSDS19.pdf (1.78 MB)

Characterising bremsstrahlung and non-linear Compton scatter in high intensity laser-foil interactions

Download (1.78 MB)
poster
posted on 08.01.2020 by Stuart Morris
Non-linear Compton scatter (NCS) and bremsstrahlung radiation both contribute to the X-rays produced in laser-solid interactions. While it is expected that NCS will efficiently generate X-rays for next generation lasers, the weaker NCS yields from laser-solid interactions in existing facilities have not yet been observed due to the bremsstrahlung background. This work attempts to derive a quantitative description of the bremsstrahlung efficiency, for interactions between ultrahigh-intensity short-pulse lasers and thin-foil targets. This model was tested against simulations from the particle-in-cell code EPOCH, which has been extended to include bremsstrahlung modelling capabilities. The relative efficiencies of bremsstrahlung and NCS will be compared to seek NCS signatures for experimental observation.

Funding

EPSRC and AWE

History

Authoriser (e.g. PI/supervisor)

m.j.smith@cranfield.ac.uk

Exports

Logo branding

Exports