Influence of the electron beam emittance on the polarization of a laser-electron x-ray generator

In this paper we analyze the polarization of the x-ray radiation coming from laser-electron x-ray generator (LEXG). We obtain general relations connecting the polarization state of outgoing x-ray radiation to the polarization state of laser beam as well as to the parameters of electron beam. We demo...

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Bibliographic Details
Published in:Physical review. Accelerators and beams 2016-11, Vol.19 (11), p.114702, Article 114702
Main Authors: Feshchenko, R. M., Vinogradov, A. V., Artyukov, I. A.
Format: Article
Language:English
Subjects:
Depolarization
Electron beams
Electrons
Emittance
Laser beams
Lasers
Polarization
Radiation
Ray generators
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Summary:In this paper we analyze the polarization of the x-ray radiation coming from laser-electron x-ray generator (LEXG). We obtain general relations connecting the polarization state of outgoing x-ray radiation to the polarization state of laser beam as well as to the parameters of electron beam. We demonstrate that finite electron beam emittance causes a partial depolarization of initially fully polarized x-ray radiation even when the laser beam is fully polarized. We demonstrate with a number of numerical experiments that finite electron beam emittance can in some cases fundamentally alter the polarization state of x-ray radiation as compared to the polarization state of x-ray radiation scattered by electron beam with a zero emittance. Possible applications of polarized LEXG’s radiation are discussed.
ISSN:2469-9888
2469-9888
DOI:10.1103/PhysRevAccelBeams.19.114702