Spatial profiles of collimated laser Compton-scattering -ray beams

The intensity and energy spatial distributions of collimated laser Compton scattering (LCS) ??????-ray beams and of the associated bremsstrahlung beams have been investigated as functions of the electron beam energy, electron beam phase space distribution, laser optics conditions laser polarization. We show that the beam halo is affected to different extents by variations above listed parameters. In the present work, we have used laser Compton scattering simulations performed with the eliLaBr code (https://github.com/dan-mihai-filipescu/eliLaBr) and LCS and bremsstrahlung ??????-ray beams produced at the NewSUBARU synchrotron radiation facility. A 500 & mu;m MiniPIX X-ray camera was used as beamspot monitor in a wide ??????-ray beam energy between 1.73 MeV and 38.1 MeV.