Design of sub-Angstrom compact free-electron laser source
Bonifacio, Rodolfo and Fares, Hesham and Ferrario, Massimo and McNeil, Brian W. J. and Robb, Gordon R. M. (2017) Design of sub-Angstrom compact free-electron laser source. Optics Communications, 382. pp. 58-63. ISSN 0030-4018 (https://doi.org/10.1016/j.optcom.2016.07.007)
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Abstract
In this paper, we propose for first time practical parameters to construct a compact sub-Angstrom Free Electron Laser (FEL) based on Compton backscattering. Our recipe is based on using picocoulomb electron bunch, enabling very low emittance and ultracold electron beam. We assume the FEL is operating in a quantum regime of Self Amplified Spontaneous Emission (SASE). The fundamental quantum feature is a significantly narrower spectrum of the emitted radiation relative to classical SASE. The quantum regime of the SASE FEL is reached when the momentum spread of the electron beam is smaller than the photon recoil momentum. Following the formulae describing SASE FEL operation, realistic designs for quantum FEL experiments are proposed. We discuss the practical constraints that influence the experimental parameters. Numerical simulations of power spectra and intensities are presented and attractive radiation characteristics such as high flux, narrow linewidth, and short pulse structure are demonstrated.
ORCID iDs
Bonifacio, Rodolfo, Fares, Hesham, Ferrario, Massimo, McNeil, Brian W. J. ORCID: https://orcid.org/0000-0002-7267-611X and Robb, Gordon R. M. ORCID: https://orcid.org/0000-0002-3004-5926;-
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Item type: Article ID code: 57742 Dates: DateEvent1 January 2017Published30 July 2016Published Online3 July 2016AcceptedSubjects: Science > Physics Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 09 Sep 2016 11:55 Last modified: 27 Sep 2024 00:58 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/57742