Energy dispersion in radiation pressure accelerated ion beams

TL;DR

This paper investigates energy dispersion in radiation pressure accelerated ion beams, analyzing phase-stable and multi-stage schemes through models and simulations to improve monoenergetic beam generation.

Contribution

It provides new analytical insights and simulation results that enhance understanding of RPA and offer guidelines for producing monoenergetic ion beams.

Findings

Phase-stable acceleration reduces energy spread.

Multi-stage acceleration can improve beam monoenergeticity.

Analytical models align with simulation results.

Abstract

We address the problem of energy dispersion of radiation pressure accelerated (RPA) ion beams emerging from a thin (solid) target. Two different acceleration schemes, namely phase-stable acceleration and multi-stage acceleration, are considered by means of analytical modelling and one-dimensional particle-in-cell simulations. Our investigations offer a deeper understanding of RPA and allow us to derive some guidelines for generating monoenergetic ion beams.