Tunable All-Optical Quasimonochromatic Thomson X-Ray Sourcein the Nonlinear Regime

We present an all-laser-driven, energy-tunable, and quasimonochromatic x-ray source based on Thomson scattering from laser-wakefield-accelerated electrons. One part of the laser beam was used to drive a few-fs bunch of quasimonoenergetic electrons, while the remainder was backscattered off the bunch...

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Bibliographic Details
Published in:Physical review letters 2015, Vol.114 (19)
Main Authors: Khrennikov, K., Wenz, J., Buck, A., Xu, Jiancai, Heigoldt, M., Veisz, Laszlo, Karsch, S.
Format: Article
Language:English
Online Access:Get full text
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Summary:We present an all-laser-driven, energy-tunable, and quasimonochromatic x-ray source based on Thomson scattering from laser-wakefield-accelerated electrons. One part of the laser beam was used to drive a few-fs bunch of quasimonoenergetic electrons, while the remainder was backscattered off the bunch at weakly relativistic intensity. When the electron energy was tuned from 17–50 MeV, narrow x-ray spectra peaking at 5–42 keV were recorded with high resolution, revealing nonlinear features. We present a large set of measurements showing the stability and practicality of our source.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.114.195003