Monte Carlo simulation method of polarization effects in Laser Compton Scattering on relativistic electrons

Abstract Quasi-monochromatic, high energy and highly polarized ? -ray beam sources based on Compton scattering of laser photons (LCS) relativistic electrons have developed for the last few decades as established instruments nuclear physics studies. Following an extensive photoneutron experimental campaign at LCS line NewSUBARU synchrotron radiation facility SPring8, Japan, a dedicated simulation code was characterizing incident beams. The eliLaBr is implemented using Geant4 available GitHub repository ( github.com/dan-mihai-filipescu/eliLaBr ). present work describes step-by-step Monte Carlo algorithm with focus modeling polarization properties scattered photon. treated independently both in Stokes parameters vector formalisms. An intervalidation between two methods given. Based state description requirements different classes, user recommendations are given which to be employed. spatial distributions its obtained head-on — electron collisions, where several states were considered: linear, unpolarized, circular mixed linear polarization. Results previous investigations reproduced. influence variable angle photon also investigated. We show that degree transfer from increases collision angle, considered 0°. However, strongly influenced by energy, we that, electrons, almost completely transferred any angle.