Characteristics of Final Particles in Multiple Compton Backscattering Process

TL;DR

This paper investigates the evolution of electron energy distribution in multiple Compton backscattering using Monte Carlo simulations, comparing results with analytical solutions and analyzing photon spectra deviations.

Contribution

It introduces a detailed Monte Carlo simulation approach to study the electron energy evolution in MCBS and compares it with analytical kinetic equations, identifying applicable regions.

Findings

Monte Carlo results match analytical solutions in certain kinematic regions.

Photon spectra in MCBS differ significantly from Klein-Nishina predictions.

Electron energy distribution characteristics are quantitatively analyzed.

Abstract

An electron passing through a counter propagating intense laser beam can interact with a few laser photons with emission of a hard photon in each collision event. In contrast with the well-known nonlinear Compton backscattering process the above mentioned process may be named as multiple Compton backscattering process (MCBS). In this paper we have investigated the evolution of the electron energy distribution during MCBS process using Monte-Carlo (M-C) simulation. The main characteristics of such a distribution as mean energy and variance obtained by M-C technique were compared with analytical solutions of kinetic equations. We found the kinematic region where the analytical solutions are applicable with a good accuracy. A photon spectrum, even for the case when each electron emits one photon (in average) differs significantly from that described by the Klein-Nishina formula.