Document Type

Article

Publication Date

2022

DOI

10.1103/PhysRevAccelBeams.25.054401

Publication Title

Physical Review Accelerators and Beams

Volume

25

Issue

5

Pages

054401 (1-21)

Abstract

Inverse Compton scattering sources are finding increasing use as intense sources of high-energy photons. When operated at high field strength, ponderomotive detuning of the scattered emission can lead to decreased source performance. Up to now, the calculations of spectra for such nonlinear Thomson scattering have been done assuming a perfectly aligned electron interacts with the incident laser beam and several authors have investigated whether pondermotive detuning may be mitigated or cured by suitable incident laser chirping prescriptions. In order to determine if these chirping prescriptions are suitable in real beams with nonzero emittance, it is necessary to include misaligned boundary conditions in the electron motion and calculate the resulting spectra from the exact motion. In this paper we provide the exact solution for the electron equations of motion in the case of a misaligned electron passing through a laser pulse of high field strength. This solution is then used to calculate the scattered radiation distribution and we determine the emittance limits for the simplest chirping prescription.

Comments

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Original Publication Citation

Johnson, E., Breen, E., Krafft, G. A., & Terzić, B. (2022). Emittance in nonlinear Thomson scattering. Physical Review Accelerators and Beams, 25(5), 1-21, Article 054401. https://doi.org/10.1103/PhysRevAccelBeams.25.054401

ORCID

0000-0002-0328-5828 (Krafft), 0000-0002-9646-8155 (Terzić)

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