Theoretical and simulation studies of characteristics of a Compton light source

TL;DR

This paper presents analytical and Monte Carlo simulation methods to predict the characteristics of Compton gamma-ray beams, aiding in their optimization and application, validated against experimental data at HIGS.

Contribution

It introduces two complementary approaches for modeling Compton scattering, enhancing prediction accuracy for beam properties under various conditions.

Findings

Methods accurately predict gamma-ray beam characteristics.

Approaches validated with experimental data from HIGS.

Enhanced understanding of beam optimization parameters.

Abstract

Compton scattering of a laser beam with a relativistic electron beam has been used to generate intense, highly polarized and nearly monoenergetic x-ray or gamma-ray beams at many facilities. The ability to predict the spatial, spectral and temporal characteristics of a Compton gamma-ray beam is crucial for the optimization of the operation of a Compton light source as well as for the applications utilizing the Compton beam. In this paper, we present two approaches, one based upon analytical calculations and the other based upon Monte Carlo simulations, to study the Compton scattering process for various electron and laser beam parameters as well as different gamma-beam collimation conditions. These approaches have been successfully applied to characterize Compton gamma-ray beams, after being benchmarked against experimental results at the High Intensity Gamma-ray Source (HIGS) facility at Duke University.