Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

First Simulations for the EuAPS Betatron Radiation Source

Andrea Frazzitta
* ,
Andrea Renato Rossi
ORCID logo ,
Alessandro Cianchi
ORCID logo ,
Massimo Ferrario
,
Luca Serafini
,
Alberto Bacci
,
Arianna Carbone
ORCID logo ,
Alessandro Curcio
,
Illya Drebot
,
Vittoria Petrillo
,
Marcello Rossetti Conti
ORCID logo ,
Sanae Samsam
Version 1 : Received: 12 October 2023 / Approved: 13 October 2023 / Online: 13 October 2023 (11:42:20 CEST)

A peer-reviewed article of this Preprint also exists.

Frazzitta, A.; Bacci, A.; Carbone, A.; Cianchi, A.; Curcio, A.; Drebot, I.; Ferrario, M.; Petrillo, V.; Conti, M.R.; Samsam, S.; Serafini, L.; Rossi, A.R. First Simulations for the EuAPS Betatron Radiation Source: A Dedicated Radiation Calculation Code. Instruments 2023, 7, 52. Frazzitta, A.; Bacci, A.; Carbone, A.; Cianchi, A.; Curcio, A.; Drebot, I.; Ferrario, M.; Petrillo, V.; Conti, M.R.; Samsam, S.; Serafini, L.; Rossi, A.R. First Simulations for the EuAPS Betatron Radiation Source: A Dedicated Radiation Calculation Code. Instruments 2023, 7, 52.

Abstract

X-rays production through betatron radiation emission from electron bunches is a valuable resource for several research fields. The EuAPS (EuPRAXIA Advanced Photon Sources) project, within the framework of the EuPRAXIA project, aims to provide 1-10 keV photons (soft X-rays) developing a compact plasma-based system designed to exploit self-injection processes that occur in highly nonlinear laser-plasma interaction (LWFA) to drive electron betatron oscillations. Since the emitted radiation spectrum, intensity, angular divergence, and possible coherence strongly depend on the properties of the self-injected beam, accurate preliminary simulations of the process are necessary to evaluate the optimal diagnostic device specifications. Dedicated tools for these tasks are under development: electron trajectories from particle-in-cell (PIC) simulations are currently undergoing numerical analysis through the calculation of retarded fields and spectra for various plasma and laser parameter combinations. At the same time, an analytical approach is being examined to obtain an expression for the emitted spectrum, assuming linear or quadratic electron energy variation. Code structure and some trajectories analysis results are presented.

Keywords

betatron radiation; LWFA; self injection; spectrum

Subject

Physical Sciences, Applied Physics

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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